* Added Java support back into Sugilite (although it still needs a calling host to be added).

author: Adam Frisby 2007-07-05 00:09:45 +0000
committer: Adam Frisby 2007-07-05 00:09:45 +0000
commit: 3c46e5b170991e41e8c82e25bae65cf46152b924 (patch)
tree: 1d8bb69cc57b9508fd8da25657f1c0bc088e5908 /OpenSim/Region/Environment/Scenes
parent: A bit more work on Building tools/support. (diff)
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28 files changed, 1927 insertions, 6 deletions
diff --git a/OpenSim/Region/Environment/Scenes/Scene.cs b/OpenSim/Region/Environment/Scenes/Scene.cs
index 0797566..1f370c4 100644
--- a/OpenSim/Region/Environment/Scenes/Scene.cs
+++ b/OpenSim/Region/Environment/Scenes/Scene.cs
@@ -39,7 +39,7 @@ using OpenSim.Framework.Servers;
 using OpenSim.Framework.Types;
 using OpenSim.Physics.Manager;
 using OpenSim.Region.Caches;
-using OpenSim.Region.Enviorment.Scripting;
+using OpenSim.Region.Environment.Scripting;
 using OpenSim.Region.Terrain;
 using Caps=OpenSim.Region.Capabilities.Caps;
 using Timer=System.Timers.Timer;
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/CSharpScriptEngine.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/CSharpEngine/CSharpScriptEngine.cs
index 7928088..9cb881a 100644
--- a/OpenSim/Region/Environment/Scenes/scripting/Engines/CSharpScriptEngine.cs
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/CSharpEngine/CSharpScriptEngine.cs
@@ -31,7 +31,7 @@ using System.Collections.Generic;
 using Microsoft.CSharp;
 using OpenSim.Framework.Console;
-namespace OpenSim.Region.Enviorment.Scripting
+namespace OpenSim.Region.Environment.Scripting
 {
    public class CSharpScriptEngine : IScriptCompiler
    {
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JScriptEngine.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JScriptEngine/JScriptEngine.cs
index d9d6f7e..be1fe56 100644
--- a/OpenSim/Region/Environment/Scenes/scripting/Engines/JScriptEngine.cs
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JScriptEngine/JScriptEngine.cs
@@ -31,7 +31,7 @@ using System.Collections.Generic;
 using Microsoft.JScript;
 using OpenSim.Framework.Console;
-namespace OpenSim.Region.Enviorment.Scripting
+namespace OpenSim.Region.Environment.Scripting
 {
    public class JScriptEngine : IScriptCompiler
    {
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/ClassInstance.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/ClassInstance.cs
new file mode 100644
index 0000000..1d93197
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/ClassInstance.cs
@@ -0,0 +1,45 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OpenSim.Scripting.EmbeddedJVM.Types;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public class ClassInstance : Object
+    {
+        public int size;
+        public Dictionary<string, BaseType> Fields = new Dictionary<string, BaseType>();
+        public ClassInstance()
+        {
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/ClassRecord.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/ClassRecord.cs
new file mode 100644
index 0000000..f4ab1a2
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/ClassRecord.cs
@@ -0,0 +1,503 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Text;
+using OpenSim.Scripting.EmbeddedJVM.Types;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public class ClassRecord
+    {
+        private ushort _majorVersion;
+        private ushort _minorVersion;
+        private ushort _constantPoolCount;
+        private ushort _accessFlags;
+        private ushort _thisClass;
+        private ushort _supperClass;
+        private ushort _interfaceCount;
+        private ushort _fieldCount;
+        private ushort _methodCount;
+        //private ushort _attributeCount;
+        //private string _name;
+        public Dictionary<string, BaseType> StaticFields = new Dictionary<string, BaseType>();
+        public PoolClass mClass;
+        public List<PoolItem> _constantsPool = new List<PoolItem>();
+        private List<MethodInfo> _methodsList = new List<MethodInfo>();
+        private List<FieldInfo> _fieldList = new List<FieldInfo>();
+        public ClassRecord()
+        {
+        }
+        public ClassInstance CreateNewInstance()
+        {
+            return new ClassInstance();
+        }
+        public void LoadClassFromFile(string fileName)
+        {
+            Console.WriteLine("loading script " + fileName);
+            FileStream fs = File.OpenRead(fileName);
+            this.LoadClassFromBytes(ReadFully(fs));
+            fs.Close();
+        }
+        public void LoadClassFromBytes(byte[] data)
+        {
+            int i = 0;
+            i += 4;
+            _minorVersion = (ushort)((data[i++] << 8) + data[i++]  );
+            _majorVersion = (ushort)((data[i++] << 8) + data[i++]  );
+            _constantPoolCount = (ushort)((data[i++] << 8) + data[i++]  );
+           // Console.WriteLine("there should be " + _constantPoolCount + " items in the pool");
+            for (int count = 0; count < _constantPoolCount -1 ; count++)
+            {
+                //read in the constant pool
+                byte pooltype = data[i++];
+                //Console.WriteLine("#" +count +": new constant type = " +pooltype);
+                //Console.WriteLine("start position is: " + i);
+                switch (pooltype)
+                {
+                    case 1:  //Utf8
+                        ushort uLength = (ushort)((data[i++] << 8) + data[i++]  );
+                       // Console.WriteLine("new utf8 type, length is " + uLength);
+                        PoolUtf8 utf8 = new PoolUtf8();
+                        utf8.readValue(data, ref i, uLength);
+                        this._constantsPool.Add(utf8);
+                        break;
+                    case 3: //Int
+                        break;
+                    case 7: //Class
+                        PoolClass pClass = new PoolClass(this);
+                        pClass.readValue(data, ref i);
+                        this._constantsPool.Add(pClass);
+                        break;
+                    case 10: //Method
+                        PoolMethodRef pMeth = new PoolMethodRef(this);
+                        pMeth.readValue(data, ref i);
+                        this._constantsPool.Add(pMeth);
+                        break;
+                    case 12:  //NamedType
+                        PoolNamedType pNamed = new PoolNamedType(this);
+                        pNamed.readValue(data, ref i);
+                        this._constantsPool.Add(pNamed);
+                        break;
+                }
+            }
+            _accessFlags = (ushort)((data[i++] << 8) + data[i++]  );
+            _thisClass = (ushort)((data[i++] << 8) + data[i++]  );
+            _supperClass = (ushort)((data[i++] << 8) + data[i++]  );
+            if (this._constantsPool[this._thisClass - 1] is PoolClass)
+            {
+                this.mClass = ((PoolClass)this._constantsPool[this._thisClass - 1]);
+            }
+            _interfaceCount = (ushort)((data[i++] << 8) + data[i++]);
+            //should now read in the info for each interface
+            _fieldCount = (ushort)((data[i++] << 8) + data[i++]);
+            //should now read in the info for each field
+            _methodCount = (ushort)((data[i++] << 8) + data[i++]);
+            for (int count = 0; count < _methodCount; count++)
+            {
+                MethodInfo methInf = new MethodInfo(this);
+                methInf.ReadData(data, ref i);
+                this._methodsList.Add(methInf);
+            }
+        }
+        public void AddMethodsToMemory(MethodMemory memory)
+        {
+            for (int count = 0; count < _methodCount; count++)
+            {
+                this._methodsList[count].AddMethodCode(memory);
+            }
+        }
+        public bool StartMethod(Thread thread, string methodName)
+        {
+            for (int count = 0; count < _methodCount; count++)
+            {
+                if (this._constantsPool[this._methodsList[count].NameIndex-1] is PoolUtf8)
+                {
+                    if (((PoolUtf8)this._constantsPool[this._methodsList[count].NameIndex-1]).Value == methodName)
+                    {
+                        //Console.WriteLine("found method: " + ((PoolUtf8)this._constantsPool[this._methodsList[count].NameIndex - 1]).Value);
+                        thread.SetPC(this._methodsList[count].CodePointer);
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+        public void PrintToConsole()
+        {
+            Console.WriteLine("Class File:");
+           Console.WriteLine("Major version: " + _majorVersion);
+           Console.WriteLine("Minor version: " + _minorVersion);
+            Console.WriteLine("Pool size: " + _constantPoolCount);
+            for (int i = 0; i < _constantsPool.Count; i++)
+            {
+                this._constantsPool[i].Print();
+            }
+           Console.WriteLine("Access flags: " + _accessFlags);
+           Console.WriteLine("This class: " + _thisClass );
+           Console.WriteLine("Super class: " + _supperClass);
+            for (int count = 0; count < _methodCount; count++)
+            {
+                Console.WriteLine();
+                this._methodsList[count].Print();
+            }
+           Console.WriteLine("class name is " + this.mClass.Name.Value);
+        }
+        public static byte[] ReadFully(Stream stream)
+        {
+            byte[] buffer = new byte[1024];
+            using (MemoryStream ms = new MemoryStream())
+            {
+                while (true)
+                {
+                    int read = stream.Read(buffer, 0, buffer.Length);
+                    if (read <= 0)
+                        return ms.ToArray();
+                    ms.Write(buffer, 0, read);
+                }
+            }
+        }
+        #region nested classes
+        public class PoolItem
+        {
+            public virtual void Print()
+            {
+            }
+        }
+        public class PoolUtf8 : PoolItem
+        {
+            public string Value = "";
+            public void readValue(byte[] data,ref int pointer , int length)
+            {
+                for (int i = 0; i < length; i++)
+                {
+                    int a =(int) data[pointer++];
+                    if ((a & 0x80) == 0)
+                    {
+                        Value = Value + (char)a;
+                    }
+                    else if ((a & 0x20) == 0)
+                    {
+                        int b = (int) data[pointer++];
+                        Value = Value + (char)(((a & 0x1f) << 6) + (b & 0x3f));      
+                    }
+                    else
+                    {
+                        int b = (int)data[pointer++];
+                        int c = (int)data[pointer++];
+                        Value = Value + (char)(((a & 0xf) << 12) + ((b & 0x3f) << 6) + (c & 0x3f));            
+                    }
+                }
+            }
+            public override void Print()
+            {
+               Console.WriteLine("Utf8 type: " + Value);
+            }
+        }
+        private class PoolInt : PoolItem
+        {
+        }
+        public class PoolClass : PoolItem
+        {
+            //public string name = "";
+            public ushort namePointer = 0;
+            private ClassRecord parent;
+            public PoolUtf8 Name;
+            public PoolClass(ClassRecord paren)
+            {
+                parent = paren;
+            }
+            public void readValue(byte[] data, ref int pointer)
+            {
+                namePointer = (ushort)((data[pointer++] << 8) + data[pointer++] );
+            }
+            public override void Print()
+            {
+                this.Name = ((PoolUtf8)this.parent._constantsPool[namePointer - 1]);
+                Console.Write("Class type: " + namePointer);
+                Console.WriteLine(" // " + ((PoolUtf8)this.parent._constantsPool[namePointer - 1]).Value);
+                
+            }
+        }
+        public class PoolMethodRef : PoolItem
+        {
+            public ushort classPointer = 0;
+            public ushort nameTypePointer = 0;
+            public PoolNamedType mNameType;
+            public PoolClass mClass;
+            private ClassRecord parent;
+            public PoolMethodRef(ClassRecord paren)
+            {
+                parent = paren;
+            }
+            public void readValue(byte[] data, ref int pointer)
+            {
+                classPointer = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                nameTypePointer = (ushort)((data[pointer++] << 8) + data[pointer++]);
+            }
+            public override void Print()
+            {
+                this.mNameType = ((PoolNamedType)this.parent._constantsPool[nameTypePointer - 1]);
+                this.mClass = ((PoolClass)this.parent._constantsPool[classPointer - 1]);
+               Console.WriteLine("MethodRef type: " + classPointer + " , " + nameTypePointer); 
+            }
+        }
+        public class PoolNamedType : PoolItem
+        {
+            public ushort namePointer = 0;
+            public ushort typePointer = 0;
+            private ClassRecord parent;
+            public PoolUtf8 Name;
+            public PoolUtf8 Type;
+            public PoolNamedType(ClassRecord paren)
+            {
+                parent = paren;
+            }
+            public void readValue(byte[] data, ref int pointer)
+            {
+                namePointer = (ushort)((data[pointer++] << 8) + data[pointer++] );
+                typePointer = (ushort)((data[pointer++] << 8) + data[pointer++] );
+            }
+            public override void Print()
+            {
+                Name = ((PoolUtf8)this.parent._constantsPool[namePointer-1]);
+                Type = ((PoolUtf8)this.parent._constantsPool[typePointer-1]);
+                Console.Write("Named type: " + namePointer + " , " + typePointer );
+                Console.WriteLine(" // "+ ((PoolUtf8)this.parent._constantsPool[namePointer-1]).Value);
+            }
+        }
+        //***********************
+        public class MethodInfo
+        {
+            public ushort AccessFlags = 0;
+            public ushort NameIndex = 0;
+            public string Name = "";
+            public ushort DescriptorIndex = 0;
+            public ushort AttributeCount = 0;
+            public List<MethodAttribute> Attributes = new List<MethodAttribute>();
+            private ClassRecord parent;
+            public int CodePointer = 0;
+ 
+            public MethodInfo(ClassRecord paren)
+            {
+                parent = paren;
+            }
+            public void AddMethodCode(MethodMemory memory)
+            {
+                Array.Copy(this.Attributes[0].Code, 0, memory.MethodBuffer, memory.NextMethodPC, this.Attributes[0].Code.Length);
+                memory.Methodcount++;
+                this.CodePointer = memory.NextMethodPC;
+                memory.NextMethodPC += this.Attributes[0].Code.Length;
+            }
+            public void ReadData(byte[] data, ref int pointer)
+            {
+                AccessFlags = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                NameIndex = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                DescriptorIndex = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                AttributeCount = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                for(int i =0; i< AttributeCount; i++)
+                {
+                    MethodAttribute attri = new MethodAttribute(this.parent);
+                    attri.ReadData(data, ref pointer);
+                    this.Attributes.Add(attri);
+                }
+            }
+            public void Print()
+            {
+               Console.WriteLine("Method Info Struct: ");
+              Console.WriteLine("AccessFlags: " + AccessFlags);
+              Console.WriteLine("NameIndex: " + NameIndex +" // "+ ((PoolUtf8)this.parent._constantsPool[NameIndex-1]).Value);
+              Console.WriteLine("DescriptorIndex: " + DescriptorIndex + " // "+ ((PoolUtf8)this.parent._constantsPool[DescriptorIndex-1]).Value);
+              Console.WriteLine("Attribute Count:" + AttributeCount);
+                for (int i = 0; i < AttributeCount; i++)
+                {
+                    this.Attributes[i].Print();
+                }
+            }
+            public class MethodAttribute
+            {
+                public ushort NameIndex = 0;
+                public string Name = "";
+                public Int32 Length = 0;
+                //for now only support code attribute
+                public ushort MaxStack = 0;
+                public ushort MaxLocals = 0;
+                public Int32 CodeLength = 0;
+                public byte[] Code;
+                public ushort ExceptionTableLength = 0;
+                public ushort SubAttributeCount = 0;
+                public List<SubAttribute> SubAttributes = new List<SubAttribute>();
+                private ClassRecord parent;
+                public MethodAttribute(ClassRecord paren)
+                {
+                    parent = paren;
+                }
+                public void ReadData(byte[] data, ref int pointer)
+                {
+                    NameIndex = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                    Length = (Int32)((data[pointer++] << 24) + (data[pointer++] << 16) + (data[pointer++] << 8) + data[pointer++]);
+                    MaxStack = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                    MaxLocals = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                    CodeLength = (Int32)((data[pointer++] << 24) + (data[pointer++] << 16) + (data[pointer++] << 8) + data[pointer++]);
+                    Code = new byte[CodeLength];
+                    for (int i = 0; i < CodeLength; i++)
+                    {
+                        Code[i] = data[pointer++];
+                    }
+                    ExceptionTableLength = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                    SubAttributeCount = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                    for (int i = 0; i < SubAttributeCount; i++)
+                    {
+                        SubAttribute subAttri = new SubAttribute(this.parent);
+                        subAttri.ReadData(data, ref pointer);
+                        this.SubAttributes.Add(subAttri);
+                    }
+                }
+                public void Print()
+                {
+                   Console.WriteLine("Method Attribute: ");
+                 Console.WriteLine("Name Index: " + NameIndex + " // "+ ((PoolUtf8)this.parent._constantsPool[NameIndex-1]).Value);
+                  Console.WriteLine("Length: " + Length);
+                  Console.WriteLine("MaxStack: " + MaxStack);
+                  Console.WriteLine("MaxLocals: " + MaxLocals);
+                 Console.WriteLine("CodeLength: " + CodeLength);
+                    for (int i = 0; i < Code.Length; i++)
+                    {
+                        Console.WriteLine("OpCode #" + i + " is: " + Code[i]);
+                    }
+                    Console.WriteLine("SubAttributes: " + SubAttributeCount);
+                    for (int i = 0; i < SubAttributeCount; i++)
+                    {
+                        this.SubAttributes[i].Print();
+                    }
+                }
+                public class SubAttribute
+                {
+                    public ushort NameIndex = 0;
+                    public string Name = "";
+                    public Int32 Length = 0;
+                    public byte[] Data;
+                    private ClassRecord parent;
+                    public SubAttribute(ClassRecord paren)
+                    {
+                        parent = paren;
+                    }
+                    public void ReadData(byte[] data, ref int pointer)
+                    {
+                        NameIndex = (ushort)((data[pointer++] << 8) + data[pointer++]);
+                        Length = (Int32)((data[pointer++] << 24) + (data[pointer++] << 16) + (data[pointer++] << 8) + data[pointer++]);
+                        Data = new byte[Length];
+                        for (int i = 0; i < Length; i++)
+                        {
+                            Data[i] = data[pointer++];
+                        }
+                    }
+                    public void Print()
+                    {
+                        Console.WriteLine("SubAttribute: NameIndex: " + NameIndex + " // " + ((PoolUtf8)this.parent._constantsPool[NameIndex - 1]).Value);
+                    }
+                }
+            }
+        }
+        private class InterfaceInfo
+        {
+            public void ReadData(byte[] data, ref int i)
+            {
+            }
+        }
+        private class FieldInfo
+        {
+            public void ReadData(byte[] data, ref int i)
+            {
+            }
+        }
+        private class AttributeInfo
+        {
+            public void ReadData(byte[] data, ref int i)
+            {
+            }
+        }
+        #endregion
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Heap.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Heap.cs
new file mode 100644
index 0000000..f213c36
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Heap.cs
@@ -0,0 +1,43 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public class Heap
+    {
+        public List<ClassInstance> ClassObjects = new List<ClassInstance>();
+        public Heap()
+        {
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Interpreter.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Interpreter.cs
new file mode 100644
index 0000000..c5995b2
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Interpreter.cs
@@ -0,0 +1,135 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OpenSim.Scripting.EmbeddedJVM.Types;
+using OpenSim.Scripting.EmbeddedJVM.Types.PrimitiveTypes;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    partial class Thread
+    {
+        private partial class Interpreter
+        {
+            private Thread _mThread;
+            public Interpreter(Thread parentThread)
+            {
+                _mThread = parentThread;
+            }
+            public bool Excute()
+            {
+                bool run = true;
+                byte currentOpCode = GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC++];
+               // Console.WriteLine("opCode is: " + currentOpCode);
+                bool handled = false;
+                handled = this.IsLogicOpCode(currentOpCode);
+                if (!handled)
+                {
+                    handled = this.IsMethodOpCode(currentOpCode);
+                }
+                if (!handled)
+                {
+                    if (currentOpCode == 172)
+                    {
+                        if (this._mThread.stack.StackFrames.Count > 1)
+                        {
+                            Console.WriteLine("returning int from function");
+                            int retPC1 = this._mThread.currentFrame.ReturnPC;
+                            BaseType bas1 = this._mThread.currentFrame.OpStack.Pop();
+                            this._mThread.stack.StackFrames.Pop();
+                            this._mThread.currentFrame = this._mThread.stack.StackFrames.Peek();
+                            this._mThread.PC = retPC1;
+                            if (bas1 is Int)
+                            {
+                                this._mThread.currentFrame.OpStack.Push((Int)bas1);
+                            }
+                        }
+                        else
+                        {
+                          //  Console.WriteLine("No parent function so ending program");
+                            this._mThread.stack.StackFrames.Pop();
+                            run = false;
+                        }
+                        handled = true;
+                    }
+                    if (currentOpCode == 174)
+                    {
+                        if (this._mThread.stack.StackFrames.Count > 1)
+                        {
+                            Console.WriteLine("returning float from function");
+                            int retPC1 = this._mThread.currentFrame.ReturnPC;
+                            BaseType bas1 = this._mThread.currentFrame.OpStack.Pop();
+                            this._mThread.stack.StackFrames.Pop();
+                            this._mThread.currentFrame = this._mThread.stack.StackFrames.Peek();
+                            this._mThread.PC = retPC1;
+                            if (bas1 is Float)
+                            {
+                                this._mThread.currentFrame.OpStack.Push((Float)bas1);
+                            }
+                        }
+                        else
+                        {
+                           // Console.WriteLine("No parent function so ending program");
+                            this._mThread.stack.StackFrames.Pop();
+                            run = false;
+                        }
+                        handled = true;
+                    }
+                    if (currentOpCode == 177)
+                    {
+                        if (this._mThread.stack.StackFrames.Count > 1)
+                        {
+                            Console.WriteLine("returning from function");
+                            int retPC = this._mThread.currentFrame.ReturnPC;
+                            this._mThread.stack.StackFrames.Pop();
+                            this._mThread.currentFrame = this._mThread.stack.StackFrames.Peek();
+                            this._mThread.PC = retPC;
+                        }
+                        else
+                        {
+                           // Console.WriteLine("No parent function so ending program");
+                            this._mThread.stack.StackFrames.Pop();
+                            run = false;
+                        }
+                        handled = true;
+                    }
+                }
+                if (!handled)
+                {
+                    Console.WriteLine("opcode " + currentOpCode + " not been handled ");
+                }
+                return run;
+            }
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/InterpreterLogic.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/InterpreterLogic.cs
new file mode 100644
index 0000000..2a11afd
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/InterpreterLogic.cs
@@ -0,0 +1,427 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OpenSim.Scripting.EmbeddedJVM.Types;
+using OpenSim.Scripting.EmbeddedJVM.Types.PrimitiveTypes;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    partial class Thread
+    {
+        private partial class Interpreter
+        {
+            private bool IsLogicOpCode(byte opcode)
+            {
+                bool result = false;
+                switch (opcode)
+                {
+                    case 2:
+                        Int m_int= new Int();
+                        m_int.mValue = -1;
+                        this._mThread.currentFrame.OpStack.Push(m_int);
+                        result = true;
+                        break;
+                    case 3:
+                        m_int= new Int();
+                        m_int.mValue = 0;
+                        this._mThread.currentFrame.OpStack.Push(m_int);
+                        result = true;
+                        break;
+                    case 4:
+                        m_int = new Int();
+                        m_int.mValue = 1;
+                        this._mThread.currentFrame.OpStack.Push(m_int);
+                        result = true;
+                        break;
+                    case 5:
+                        m_int = new Int();
+                        m_int.mValue = 2;
+                        this._mThread.currentFrame.OpStack.Push(m_int);
+                        result = true;
+                        break;
+                    case 6:
+                        m_int = new Int();
+                        m_int.mValue = 3;
+                        this._mThread.currentFrame.OpStack.Push(m_int);
+                        break;
+                    case 7:
+                        m_int = new Int();
+                        m_int.mValue = 4;
+                        this._mThread.currentFrame.OpStack.Push(m_int);
+                        result = true;
+                        break;
+                    case 8:
+                        m_int = new Int();
+                        m_int.mValue = 5;
+                        this._mThread.currentFrame.OpStack.Push(m_int);
+                        result = true;
+                        break;
+                    case 11:
+                        Float m_float = new Float();
+                        m_float.mValue = 0.0f;
+                        this._mThread.currentFrame.OpStack.Push(m_float);
+                        result = true;
+                        break;
+                    case 12:
+                        m_float = new Float();
+                        m_float.mValue = 1.0f;
+                        this._mThread.currentFrame.OpStack.Push(m_float);
+                        result = true;
+                        break;
+                    case 13:
+                        m_float = new Float();
+                        m_float.mValue = 2.0f;
+                        this._mThread.currentFrame.OpStack.Push(m_float);
+                        result = true;
+                        break;
+                    case 16:
+                        int pushvalue = (int)GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC];
+                        Int pushInt = new Int();
+                        pushInt.mValue = pushvalue;
+                        this._mThread.currentFrame.OpStack.Push(pushInt);
+                        this._mThread.PC++;
+                        result = true;
+                        break;
+                    case 17:
+                        short pushvalue2 = (short)((GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC] << 8) + GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC + 1]);
+                        Int pushInt2 = new Int();
+                        pushInt2.mValue = pushvalue2;
+                        this._mThread.currentFrame.OpStack.Push(pushInt2);
+                        this._mThread.PC += 2;
+                        result = true;
+                        break;
+                    case 23:
+                        short findex1 = (short)((GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC]));
+                        Float fload = new Float();
+                        if (this._mThread.currentFrame.LocalVariables[findex1] != null)
+                        {
+                            if (this._mThread.currentFrame.LocalVariables[findex1] is Float)
+                            {
+                                fload.mValue = ((Float)this._mThread.currentFrame.LocalVariables[findex1]).mValue;
+                                this._mThread.currentFrame.OpStack.Push(fload);
+                            }
+                        }
+                        this._mThread.PC++;
+                        result = true;
+                        break;
+                    case 26:
+                        if (this._mThread.currentFrame.LocalVariables[0] != null)
+                        {
+                            if (this._mThread.currentFrame.LocalVariables[0] is Int)
+                            {
+                                Int newInt = new Int();
+                                newInt.mValue = ((Int)this._mThread.currentFrame.LocalVariables[0]).mValue;
+                                this._mThread.currentFrame.OpStack.Push(newInt);
+                            }
+                        }
+                        result = true;
+                        break;
+                    case 27:
+                        if (this._mThread.currentFrame.LocalVariables[1] != null)
+                        {
+                            if (this._mThread.currentFrame.LocalVariables[1] is Int)
+                            {
+                                Int newInt = new Int();
+                                newInt.mValue = ((Int)this._mThread.currentFrame.LocalVariables[1]).mValue;
+                                this._mThread.currentFrame.OpStack.Push(newInt);
+                            }
+                        }
+                        result = true;
+                        break;
+                    case 34:
+                        if (this._mThread.currentFrame.LocalVariables[0] != null)
+                        {
+                            if (this._mThread.currentFrame.LocalVariables[0] is Float)
+                            {
+                                Float newfloat = new Float();
+                                newfloat.mValue = ((Float)this._mThread.currentFrame.LocalVariables[0]).mValue;
+                                this._mThread.currentFrame.OpStack.Push(newfloat);
+                            }
+                        }
+                        result = true;
+                        break;
+                    case 35:
+                        if (this._mThread.currentFrame.LocalVariables[1] != null)
+                        {
+                            if (this._mThread.currentFrame.LocalVariables[1] is Float)
+                            {
+                                Float newfloat = new Float();
+                                newfloat.mValue = ((Float)this._mThread.currentFrame.LocalVariables[1]).mValue;
+                                this._mThread.currentFrame.OpStack.Push(newfloat);
+                            }
+                        }
+                        result = true;
+                        break;
+                    case 36:
+                        if (this._mThread.currentFrame.LocalVariables[2] != null)
+                        {
+                            if (this._mThread.currentFrame.LocalVariables[2] is Float)
+                            {
+                                Float newfloat = new Float();
+                                newfloat.mValue = ((Float)this._mThread.currentFrame.LocalVariables[2]).mValue;
+                                this._mThread.currentFrame.OpStack.Push(newfloat);
+                            }
+                        }
+                        result = true;
+                        break;
+                    case 37:
+                        if (this._mThread.currentFrame.LocalVariables[3] != null)
+                        {
+                            if (this._mThread.currentFrame.LocalVariables[3] is Float)
+                            {
+                                Float newfloat = new Float();
+                                newfloat.mValue = ((Float)this._mThread.currentFrame.LocalVariables[3]).mValue;
+                                this._mThread.currentFrame.OpStack.Push(newfloat);
+                            }
+                        }
+                        result = true;
+                        break;
+                    case 56:
+                        short findex = (short)((GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC] ));
+                        BaseType fstor = this._mThread.currentFrame.OpStack.Pop();
+                        if (fstor is Float)
+                        {
+                            this._mThread.currentFrame.LocalVariables[findex] = (Float)fstor;
+                        }
+                        this._mThread.PC++;
+                        result = true;
+                        break;
+                    case 59:
+                        BaseType baset = this._mThread.currentFrame.OpStack.Pop();
+                        if (baset is Int)
+                        {
+                            this._mThread.currentFrame.LocalVariables[0] = (Int)baset;
+                        }
+                        result = true;
+                        break;
+                    case 60:
+                        baset = this._mThread.currentFrame.OpStack.Pop();
+                        if (baset is Int)
+                        {
+                            this._mThread.currentFrame.LocalVariables[1] = (Int)baset;
+                        }
+                        result = true;
+                        break;
+                    case 67:
+                        baset = this._mThread.currentFrame.OpStack.Pop();
+                        if (baset is Float)
+                        {
+                            this._mThread.currentFrame.LocalVariables[0] = (Float)baset;
+                        }
+                        result = true;
+                        break;
+                    case 68:
+                        baset = this._mThread.currentFrame.OpStack.Pop();
+                        if (baset is Float)
+                        {
+                            this._mThread.currentFrame.LocalVariables[1] = (Float)baset;
+                        }
+                        result = true;
+                        break;
+                    case 69:
+                        baset = this._mThread.currentFrame.OpStack.Pop();
+                        if (baset is Float)
+                        {
+                            this._mThread.currentFrame.LocalVariables[2] = (Float)baset;
+                        }
+                        result = true;
+                        break;
+                    case 70:
+                        baset = this._mThread.currentFrame.OpStack.Pop();
+                        if (baset is Float)
+                        {
+                            this._mThread.currentFrame.LocalVariables[3] = (Float)baset;
+                        }
+                        result = true;
+                        break;
+                    case 87:
+                        this._mThread.currentFrame.OpStack.Pop();
+                        result = true;
+                        break;
+                    case 98:
+                        BaseType bf2 = this._mThread.currentFrame.OpStack.Pop();
+                        BaseType bf1 = this._mThread.currentFrame.OpStack.Pop();
+                        if (bf1 is Float && bf2 is Float)
+                        {
+                            Float nflt = new Float();
+                            nflt.mValue = ((Float)bf1).mValue + ((Float)bf2).mValue;
+                            this._mThread.currentFrame.OpStack.Push(nflt);
+                        }
+                        result = true;
+                        break;
+                    case 102:
+                        BaseType bsf2 = this._mThread.currentFrame.OpStack.Pop();
+                        BaseType bsf1 = this._mThread.currentFrame.OpStack.Pop();
+                        if (bsf1 is Float && bsf2 is Float)
+                        {
+                            Float resf = new Float();
+                            resf.mValue = ((Float)bsf1).mValue - ((Float)bsf2).mValue;
+                            this._mThread.currentFrame.OpStack.Push(resf);
+                        }
+                        result = true;
+                        break;
+                    case 104: //check the order of the two values off the stack is correct
+                        BaseType bs2 = this._mThread.currentFrame.OpStack.Pop();
+                        BaseType bs1 = this._mThread.currentFrame.OpStack.Pop();
+                        if (bs1 is Int && bs2 is Int)
+                        {
+                            Int nInt = new Int();
+                            nInt.mValue = ((Int)bs1).mValue * ((Int)bs2).mValue;
+                            this._mThread.currentFrame.OpStack.Push(nInt);
+                        }
+                        result = true;
+                        break;
+                    case 132:
+                        if (this._mThread.currentFrame.LocalVariables[GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC]] != null)
+                        {
+                            if (this._mThread.currentFrame.LocalVariables[GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC]] is Int)
+                            {
+                                ((Int)this._mThread.currentFrame.LocalVariables[GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC]]).mValue += (sbyte) GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC + 1];
+                            }
+                        }
+                        this._mThread.PC += 2;
+                        result = true;
+                        break;
+                    case 139:
+                        BaseType conv1 = this._mThread.currentFrame.OpStack.Pop();
+                        if (conv1 is Float)
+                        {
+                            Int newconv = new Int();
+                            newconv.mValue = (int)((Float)conv1).mValue;
+                            this._mThread.currentFrame.OpStack.Push(newconv);
+                        }
+                        result = true;
+                        break;
+                    case 149:
+                        BaseType flcom2 = this._mThread.currentFrame.OpStack.Pop();
+                        BaseType flcom1 = this._mThread.currentFrame.OpStack.Pop();
+                        if (flcom1 is Float && flcom2 is Float)
+                        {
+                            Int compres = new Int();
+                            if (((Float)flcom1).mValue < ((Float)flcom2).mValue)
+                            {
+                                compres.mValue = -1;
+                            }
+                            else if (((Float)flcom1).mValue > ((Float)flcom2).mValue)
+                            {
+                                compres.mValue = 1;
+                            }
+                            else
+                            {
+                                compres.mValue = 0;
+                            }
+                            this._mThread.currentFrame.OpStack.Push(compres);
+                        }
+                        result = true;
+                        break;
+                    case 158:
+                        short compareoffset1 = (short)((GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC] << 8) + GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC + 1]);
+                        BaseType comp1 = this._mThread.currentFrame.OpStack.Pop();
+                        if (comp1 is Int)
+                        {
+                            if (((Int)comp1).mValue <= 0)
+                            {
+                                this._mThread.PC += -1 + compareoffset1;
+                            }
+                            else
+                            {
+                                this._mThread.PC += 2;
+                            }
+                        }
+                        else
+                        {
+                            this._mThread.PC += 2;
+                        }
+                        result = true;
+                        break;
+                    case 162:
+                        short compareoffset = (short)((GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC] << 8) + GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC + 1]);
+                        BaseType bc2 = this._mThread.currentFrame.OpStack.Pop();
+                        BaseType bc1 = this._mThread.currentFrame.OpStack.Pop();
+                        if (bc1 is Int && bc2 is Int)
+                        {
+                            //Console.WriteLine("comparing " + ((Int)bc1).mValue + " and " + ((Int)bc2).mValue);
+                            if (((Int)bc1).mValue >= ((Int)bc2).mValue)
+                            {
+                               // Console.WriteLine("branch compare true , offset is " +compareoffset);
+                               // Console.WriteLine("current PC is " + this._mThread.PC);
+                                this._mThread.PC += -1 + compareoffset;
+                                //Console.WriteLine("new PC is " + this._mThread.PC);
+                            }
+                            else
+                            {
+                                //Console.WriteLine("branch compare false");
+                                this._mThread.PC += 2;
+                            }
+                        }
+                        else
+                        {
+                            this._mThread.PC += 2;
+                        }
+                        result = true;
+                        break;
+                    case 164:
+                        short compareloffset = (short)((GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC] << 8) + GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC + 1]);
+                        BaseType bcl2 = this._mThread.currentFrame.OpStack.Pop();
+                        BaseType bcl1 = this._mThread.currentFrame.OpStack.Pop();
+                        if (bcl1 is Int && bcl2 is Int)
+                        {
+                            //Console.WriteLine("comparing " + ((Int)bcl1).mValue + " and " + ((Int)bcl2).mValue);
+                            if (((Int)bcl1).mValue <= ((Int)bcl2).mValue)
+                            {
+                              // Console.WriteLine("branch compare true , offset is " + compareloffset);
+                              // Console.WriteLine("current PC is " + this._mThread.PC);
+                               this._mThread.PC += -1 + compareloffset;
+                              // Console.WriteLine("new PC is " + this._mThread.PC);
+                            }
+                            else
+                            {
+                                //Console.WriteLine("branch compare false");
+                                this._mThread.PC += 2;
+                            }
+                        }
+                        else
+                        {
+                            this._mThread.PC += 2;
+                        }
+                        result = true;
+                        break;
+                    case 167:
+                        short offset = (short)((GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC] << 8) + GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC+1]);
+                        this._mThread.PC += -1 + offset;
+                        result = true;
+                        break;
+                }
+                return result;
+            }
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/InterpreterMethods.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/InterpreterMethods.cs
new file mode 100644
index 0000000..4d60559
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/InterpreterMethods.cs
@@ -0,0 +1,96 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OpenSim.Scripting.EmbeddedJVM.Types;
+using OpenSim.Scripting.EmbeddedJVM.Types.PrimitiveTypes;
+using OpenSim.Framework.Interfaces;
+using OpenSim.Framework;
+using OpenSim.Framework.Types;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    partial class Thread
+    {
+        private partial class Interpreter
+        {
+            private bool IsMethodOpCode(byte opcode)
+            {
+                bool result = false;
+                switch (opcode)
+                {
+                    case 184:
+                        short refIndex = (short) ((GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC] << 8) + GlobalMemory.MethodArea.MethodBuffer[this._mThread.PC+1]);
+                        if (this._mThread.currentClass._constantsPool[refIndex - 1] is ClassRecord.PoolMethodRef)
+                        {
+                            string typ = ((ClassRecord.PoolMethodRef)this._mThread.currentClass._constantsPool[refIndex - 1]).mNameType.Type.Value;
+                            string typeparam = "";
+                            string typereturn = "";
+                            int firstbrak = 0;
+                            int secondbrak = 0;
+                            firstbrak = typ.LastIndexOf('(');
+                            secondbrak = typ.LastIndexOf(')');
+                            typeparam = typ.Substring(firstbrak + 1, secondbrak - firstbrak - 1);
+                            typereturn = typ.Substring(secondbrak + 1, typ.Length - secondbrak - 1);
+                            if (((ClassRecord.PoolMethodRef)this._mThread.currentClass._constantsPool[refIndex - 1]).mClass.Name.Value == this._mThread.currentClass.mClass.Name.Value)
+                            {
+                                //calling a method in this class
+                                if (typeparam.Length == 0)
+                                {
+                                    this._mThread.JumpToStaticVoidMethod(((ClassRecord.PoolMethodRef)this._mThread.currentClass._constantsPool[refIndex - 1]).mNameType.Name.Value, (this._mThread.PC + 2));
+                                }
+                                else
+                                {
+                                    this._mThread.JumpToStaticParamMethod(((ClassRecord.PoolMethodRef)this._mThread.currentClass._constantsPool[refIndex - 1]).mNameType.Name.Value, typeparam, (this._mThread.PC + 2));
+                                }
+                            }
+                            else
+                            {
+                                //calling a method of a different class
+                                // OpenSimAPI Class
+                                if (((ClassRecord.PoolMethodRef)this._mThread.currentClass._constantsPool[refIndex - 1]).mClass.Name.Value == "OpenSimAPI")
+                                {
+                                    this._mThread.scriptInfo.api.CallMethod(((ClassRecord.PoolMethodRef)this._mThread.currentClass._constantsPool[refIndex - 1]).mNameType.Name.Value, null);
+                                }
+                            }
+                        }
+                        else
+                        {
+                            this._mThread.PC += 2;
+                        }
+                        result = true;
+                        break;
+                }
+                return result;
+            }
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/InterpreterReturn.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/InterpreterReturn.cs
new file mode 100644
index 0000000..cbedb71
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/InterpreterReturn.cs
@@ -0,0 +1,40 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    partial class Thread
+    {
+        private partial class Interpreter
+        {
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/MainMemory.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/MainMemory.cs
new file mode 100644
index 0000000..97d9fb6
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/MainMemory.cs
@@ -0,0 +1,45 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public class MainMemory
+    {
+        public Heap HeapArea;
+        public MethodMemory MethodArea;
+ 
+        public MainMemory()
+        {
+            MethodArea = new MethodMemory();
+            HeapArea = new Heap();
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/MethodMemory.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/MethodMemory.cs
new file mode 100644
index 0000000..7e938b4
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/MethodMemory.cs
@@ -0,0 +1,46 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public class MethodMemory
+    {
+        public byte[] MethodBuffer;
+        public List<ClassRecord> Classes = new List<ClassRecord>();
+        public int NextMethodPC = 0;
+        public int Methodcount = 0;
+        public MethodMemory()
+        {
+            MethodBuffer = new byte[20000];
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Object.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Object.cs
new file mode 100644
index 0000000..2c3bedd
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Object.cs
@@ -0,0 +1,37 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public class Object
+    {
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/OpenSimJVM.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/OpenSimJVM.cs
new file mode 100644
index 0000000..7ed734b
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/OpenSimJVM.cs
@@ -0,0 +1,176 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+using System.Threading;
+using OpenSim.Framework;
+using OpenSim.Framework.Interfaces;
+using OpenSim.Framework.Utilities;
+using OpenSim.Region.Environment.Scripting;
+using OpenSim.Region.Environment.Scenes;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public class OpenSimJVM : IScript
+    {
+        private List<Thread> _threads = new List<Thread>();
+        private BlockingQueue<CompileInfo> CompileScripts = new BlockingQueue<CompileInfo>();
+        private MainMemory _mainMemory;
+        private System.Threading.Thread compileThread;
+        ScriptInfo scriptInfo;
+        public OpenSimJVM()
+        {
+        }
+        public void Initialise(ScriptInfo info)
+        {
+            scriptInfo = info;
+        }
+        public string getName()
+        {
+            return "JVM Scripting Engine";
+        }
+        public bool Init(Scene world)
+        {
+            Console.WriteLine("Creating OpenSim JVM scripting engine");
+            _mainMemory = new MainMemory();
+            Thread.GlobalMemory = this._mainMemory;
+            Thread.World = world;
+            compileThread = new System.Threading.Thread(new ThreadStart(CompileScript));
+            compileThread.IsBackground = true;
+            compileThread.Start();
+            return true;
+        }
+        public string GetName()
+        {
+            return "OpenSimJVM";
+        }
+        public void LoadScript(string script, string scriptName, uint entityID)
+        {
+            Console.WriteLine("OpenSimJVM - loading new script: " + scriptName);
+            CompileInfo comp = new CompileInfo();
+            comp.entityId = entityID;
+            comp.script = script;
+            comp.scriptName = scriptName;
+            this.CompileScripts.Enqueue(comp);
+        }
+        public void CompileScript()
+        {
+            while (true)
+            {
+                CompileInfo comp = this.CompileScripts.Dequeue();
+                string script = comp.script;
+                string scriptName = comp.scriptName;
+                uint entityID = comp.entityId;
+                try
+                {
+                    //need to compile the script into a java class file
+                    //first save it to a java source file
+                    TextWriter tw = new StreamWriter(scriptName + ".java");
+                    tw.WriteLine(script);
+                    tw.Close();
+                    //now compile
+                    System.Diagnostics.ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo("javac.exe", "*.java");
+                   // psi.RedirectStandardOutput = true;
+                    psi.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
+                    psi.UseShellExecute = false;
+                    System.Diagnostics.Process javacomp;
+                    javacomp = System.Diagnostics.Process.Start(psi);
+                    javacomp.WaitForExit();
+                    
+                    //now load in class file
+                    ClassRecord class1 = new ClassRecord();
+                    class1.LoadClassFromFile(scriptName + ".class");
+                    class1.PrintToConsole();
+                    //Console.WriteLine();
+                    this._mainMemory.MethodArea.Classes.Add(class1);
+                    class1.AddMethodsToMemory(this._mainMemory.MethodArea);
+                    Thread newThread = new Thread();
+                    this._threads.Add(newThread);
+                    newThread.EntityId = entityID;
+                    newThread.currentClass = class1;
+                    newThread.scriptInfo = scriptInfo;
+                    //now delete the created files
+                    System.IO.File.Delete(scriptName + ".java");
+                    System.IO.File.Delete(scriptName + ".class");
+                    //this.OnFrame();
+                }
+                catch (Exception e)
+                {
+                    Console.WriteLine("exception");
+                    Console.WriteLine(e.StackTrace);
+                    Console.WriteLine(e.Message);
+                }
+            }
+        }
+        public void OnFrame()
+        {
+            for (int i = 0; i < this._threads.Count; i++)
+            {
+                if (!this._threads[i].running)
+                {
+                    this._threads[i].StartMethod("OnFrame");
+                    bool run = true;
+                    while (run)
+                    {
+                        run = this._threads[i].Excute();
+                    }
+                }
+            }
+        }
+        private class CompileInfo
+        {
+            public string script;
+            public string scriptName;
+            public uint entityId;
+            public CompileInfo()
+            {
+            }
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Stack.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Stack.cs
new file mode 100644
index 0000000..69a274c
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Stack.cs
@@ -0,0 +1,42 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public class Stack
+    {
+        public Stack<StackFrame> StackFrames = new Stack<StackFrame>();
+        public Stack()
+        {
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/StackFrame.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/StackFrame.cs
new file mode 100644
index 0000000..3a2b58a
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/StackFrame.cs
@@ -0,0 +1,49 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OpenSim.Scripting.EmbeddedJVM.Types;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public class StackFrame
+    {
+        public BaseType[] LocalVariables;
+        public Stack<BaseType> OpStack = new Stack<BaseType>();
+        public int ReturnPC = 0;
+        public ClassRecord CallingClass = null;
+        public StackFrame()
+        {
+            LocalVariables = new BaseType[20];
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Thread.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Thread.cs
new file mode 100644
index 0000000..806f833
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Thread.cs
@@ -0,0 +1,120 @@
+/*
+* Copyright (c) Contributors, http://www.openmetaverse.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* 
+*/
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OpenSim.Scripting.EmbeddedJVM.Types;
+using OpenSim.Scripting.EmbeddedJVM.Types.PrimitiveTypes;
+using OpenSim.Framework;
+using OpenSim.Framework.Interfaces;
+using OpenSim.Region.Environment.Scenes;
+using OpenSim.Region.Environment.Scripting;
+namespace OpenSim.Scripting.EmbeddedJVM
+{
+    public partial class Thread
+    {
+        // Is this smart?
+        public static MainMemory GlobalMemory;
+        public static Scene World;
+        private int PC = 0;
+        private Stack stack;
+        private Interpreter mInterpreter;
+        public ClassRecord currentClass;
+        public ClassInstance currentInstance;
+        private StackFrame currentFrame;
+        public int excutionCounter = 0;
+        public bool running = false;
+        public uint EntityId = 0;
+        public ScriptInfo scriptInfo;
+        public Thread()
+        {
+            this.mInterpreter = new Interpreter(this);
+            this.stack = new Stack();
+        }
+        public void SetPC(int methodpointer)
+        {
+            //Console.WriteLine("Thread PC has been set to " + methodpointer);
+            PC = methodpointer;
+        }
+        public void StartMethod(ClassRecord rec, string methName)
+        {
+            currentFrame = new StackFrame();
+            this.stack.StackFrames.Push(currentFrame);
+            this.currentClass = rec;
+            currentClass.StartMethod(this, methName);
+        }
+        public void StartMethod( string methName)
+        {
+            currentFrame = new StackFrame();
+            this.stack.StackFrames.Push(currentFrame);
+            currentClass.StartMethod(this, methName);
+        }
+        public void JumpToStaticVoidMethod(string methName, int returnPC)
+        {
+            currentFrame = new StackFrame();
+            currentFrame.ReturnPC = returnPC;
+            this.stack.StackFrames.Push(currentFrame);
+            currentClass.StartMethod(this, methName);
+        }
+        public void JumpToStaticParamMethod(string methName, string param, int returnPC)
+        {
+            if (param == "I")
+            {
+                BaseType bs1 = currentFrame.OpStack.Pop();
+                currentFrame = new StackFrame();
+                currentFrame.ReturnPC = returnPC;
+                this.stack.StackFrames.Push(currentFrame);
+                currentFrame.LocalVariables[0] = ((Int)bs1);
+                currentClass.StartMethod(this, methName);
+            }
+            if (param == "F")
+            {
+            }
+        }
+        public void JumpToClassStaticVoidMethod(string className, string methName, int returnPC)
+        {
+        }
+        public bool Excute()
+        {
+            excutionCounter++;
+            return this.mInterpreter.Excute();
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/ArrayReference.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/ArrayReference.cs
new file mode 100644
index 0000000..2854eab
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/ArrayReference.cs
@@ -0,0 +1,10 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM.Types
+{
+    public class ArrayReference :BaseType
+    {
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/BaseType.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/BaseType.cs
new file mode 100644
index 0000000..270aa7b
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/BaseType.cs
@@ -0,0 +1,10 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM.Types
+{
+    public class BaseType : Object
+    {
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/ObjectReference.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/ObjectReference.cs
new file mode 100644
index 0000000..da28eaa
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/ObjectReference.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM.Types
+{
+    public class ObjectReference : BaseType
+    {
+        public ushort Reference;
+        public ObjectReference()
+        {
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Byte.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Byte.cs
new file mode 100644
index 0000000..1a3ecff
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Byte.cs
@@ -0,0 +1,10 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM.Types.PrimitiveTypes
+{
+    public class Byte : BaseType
+    {
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Char.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Char.cs
new file mode 100644
index 0000000..19002d4
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Char.cs
@@ -0,0 +1,10 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM.Types.PrimitiveTypes
+{
+    public class Char : BaseType
+    {
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Float.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Float.cs
new file mode 100644
index 0000000..91f1679
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Float.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM.Types.PrimitiveTypes
+{
+    public class Float : BaseType
+    {
+        public float mValue = 0;
+        public Float()
+        {
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Int.cs b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Int.cs
new file mode 100644
index 0000000..4ecd325
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/Engines/JVMEngine/Types/PrimitiveTypes/Int.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+namespace OpenSim.Scripting.EmbeddedJVM.Types.PrimitiveTypes
+{
+    public class Int : BaseType
+    {
+        public int mValue = 0;
+        public Int()
+        {
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/Script.cs b/OpenSim/Region/Environment/Scenes/scripting/Script.cs
index 8029883..139bdf1 100644
--- a/OpenSim/Region/Environment/Scenes/scripting/Script.cs
+++ b/OpenSim/Region/Environment/Scenes/scripting/Script.cs
@@ -27,7 +27,7 @@
 */
 using OpenSim.Region.Environment.Scenes;
-namespace OpenSim.Region.Enviorment.Scripting
+namespace OpenSim.Region.Environment.Scripting
 {
    public interface IScript
    {
diff --git a/OpenSim/Region/Environment/Scenes/scripting/ScriptAPI.cs b/OpenSim/Region/Environment/Scenes/scripting/ScriptAPI.cs
new file mode 100644
index 0000000..fd601cb
--- /dev/null
+++ b/OpenSim/Region/Environment/Scenes/scripting/ScriptAPI.cs
@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using OpenSim.Region.Environment.Scenes;
+namespace OpenSim.Region.Environment.Scripting
+{
+    // This class is to be used for engines which may not be able to access the Scene directly.
+    // Scene access is preffered, but obviously not possible on some non-.NET languages.
+    public class ScriptAPI
+    {
+        Scene scene;
+        public ScriptAPI(Scene world)
+        {
+            scene = world;
+        }
+        public Object CallMethod(String method, Object[] args)
+        {
+            return null;
+        }
+    }
+}
diff --git a/OpenSim/Region/Environment/Scenes/scripting/ScriptInfo.cs b/OpenSim/Region/Environment/Scenes/scripting/ScriptInfo.cs
index d984d60..ed6f033 100644
--- a/OpenSim/Region/Environment/Scenes/scripting/ScriptInfo.cs
+++ b/OpenSim/Region/Environment/Scenes/scripting/ScriptInfo.cs
@@ -28,7 +28,7 @@
 using OpenSim.Framework.Console;
 using OpenSim.Region.Environment.Scenes;
-namespace OpenSim.Region.Enviorment.Scripting
+namespace OpenSim.Region.Environment.Scripting
 {
    /// <summary>
    /// Class which provides access to the world
@@ -44,11 +44,15 @@ namespace OpenSim.Region.Enviorment.Scripting
        // The console
        public LogBase logger;
+        // API Access
+        public ScriptAPI api;
        public ScriptInfo(Scene scene)
        {
            world = scene;
            events = world.eventManager;
            logger = MainLog.Instance;
+            api = new ScriptAPI(scene);
        }
    }
 }
diff --git a/OpenSim/Region/Environment/Scenes/scripting/ScriptManager.cs b/OpenSim/Region/Environment/Scenes/scripting/ScriptManager.cs
index 1d47c24..250a4f0 100644
--- a/OpenSim/Region/Environment/Scenes/scripting/ScriptManager.cs
+++ b/OpenSim/Region/Environment/Scenes/scripting/ScriptManager.cs
@@ -29,7 +29,7 @@ using System.Collections.Generic;
 using OpenSim.Framework.Console;
 using OpenSim.Region.Environment.Scenes;
-namespace OpenSim.Region.Enviorment.Scripting
+namespace OpenSim.Region.Environment.Scripting
 {
    public class ScriptManager
    {
author	Adam Frisby	2007-07-05 00:09:45 +0000
committer	Adam Frisby	2007-07-05 00:09:45 +0000
commit	3c46e5b170991e41e8c82e25bae65cf46152b924 (patch)
tree	1d8bb69cc57b9508fd8da25657f1c0bc088e5908 /OpenSim/Region/Environment/Scenes
parent	A bit more work on Building tools/support. (diff)
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