--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javacommons/utils/javasrc/com/nokia/mj/impl/rt/JvmPort.java	Mon May 03 12:27:20 2010 +0300
@@ -0,0 +1,211 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+package com.nokia.mj.impl.rt;
+
+import java.util.Hashtable;
+import com.nokia.mj.impl.rt.support.NativeMemoryBlock;
+import com.nokia.mj.impl.rt.support.ThreadEventListener;
+import com.nokia.mj.impl.utils.Logger;
+
+/**
+ *
+ * @author Nokia Corporation
+ * @version 1.0
+ */
+
+public abstract class JvmPort
+{
+
+    /**
+     * Property name of VM port
+     */
+    private static final String PORTCLASS_PROPERTY_NAME = "com.nokia.jvm.port";
+
+    private static final String PORTCLASS_PACKAGE = "com.nokia.mj.impl.rt.";
+
+    /**
+     * When the class is loaded it will try to create the VM porting class
+     * defined in the system property PORTCLASS_PROPERTY_NAME
+     */
+    private static JvmPort sInstance = null;
+
+    /**
+     * A reference to object containing properties. In CLDC it is Hashtable,
+     * otherwise it is Properties.
+     */
+    private static Hashtable mPropertiesContainer;
+
+    protected JvmPort()
+    {
+    }
+
+    /**
+     * Static initializer
+     */
+    static
+    {
+        String vmPortClass = System.getProperty(PORTCLASS_PROPERTY_NAME);
+        if (vmPortClass == null)
+        {
+            throw new RuntimeException("Not able to load VM port class since "
+                                       + PORTCLASS_PROPERTY_NAME +
+                                       " is undefined");
+        }
+        vmPortClass = PORTCLASS_PACKAGE + vmPortClass;
+        try
+        {
+            Class clazz = Class.forName(vmPortClass);
+            sInstance = (JvmPort)clazz.newInstance();
+        }
+        catch (Exception e)
+        {
+            String errTxt = "Not able to instantiate class " +
+                            vmPortClass + ".";
+            Logger.ELOG(Logger.EUtils, errTxt, e);
+            throw new RuntimeException(errTxt);
+        }
+    }
+
+    /**
+     * Returns an instcance of class implementing interface JvmPort.
+     *
+     * @return JvmPort
+     */
+    public static JvmPort getInstance()
+    {
+        return sInstance;
+    }
+
+    /**
+     * Sets the container containing system properties.
+     * @param propertiesContainer system properties.
+     */
+    public static void setPropertiesContainer(Hashtable propertiesContainer)
+    {
+        mPropertiesContainer = propertiesContainer;
+    }
+
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.Jvm#loadSystemLibrary(java.lang.String).
+     */
+    public abstract void loadSystemLibrary(String libName);
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.Jvm#
+     *      loadApplicationClass(java.lang.String).
+     */
+    public abstract Class loadApplicationClass(String name)
+    throws ClassNotFoundException;
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.JvmInternal#runYoungGenerationGc().
+     */
+    public abstract boolean runYoungGenerationGc();
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.Jvm#
+     * setThreadAsDaemon((java.lang.Thread, boolean)).
+     */
+    public abstract void setThreadAsDaemon(Thread Thread,
+                                           boolean daemon)
+    throws IllegalThreadStateException,
+                SecurityException;
+
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.Jvm#
+     *      getResourceAsNativeMemory(java.lang.String, java.lang.String).
+     */
+    public abstract
+    NativeMemoryBlock getResourceAsNativeMemory(String jarPath,
+            String resName);
+
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.JvmInternal#disableRuntimeExit().
+     */
+    public abstract void disableRuntimeExit();
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.JvmInternal#enableRuntimeExit().
+     */
+    public abstract void enableRuntimeExit();
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.JvmInternal#exitVm(int).
+     */
+    public abstract void exitVm(int status);
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.JvmInternal#
+     * runFinalization().
+     */
+    public abstract void runFinalization();
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.JvmInternal#
+     * enableFinalization(java.lang.Class).
+     */
+    public abstract void enableFinalization(Class clazz);
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.JvmInternal#setThreadEventListener
+     * (com.nokia.mj.impl.rt.support.ThreadEventListener).
+     */
+    public abstract void setThreadEventListener(ThreadEventListener listener);
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.JvmInternal#
+     * addRestrictedPackagePrefixes(java.lang.String[]).
+     */
+    public abstract void addRestrictedPackagePrefixes(String[] packageNames)
+    throws SecurityException;
+
+    /**
+     * @see com.nokia.mj.impl.rt.support.JvmInternal#
+     * addRestrictedPackagePrefixes(java.lang.String[]).
+     */
+    public abstract void addProtectedPackagePrefixes(String[] packageNames)
+    throws SecurityException;
+
+
+    /**
+     * @see com.nokia.mj.impl.runtimesupport.JvmPort#appendClasspath.
+     */
+    public abstract void appendToClassPath(String path);
+
+    /**
+     * @see com.nokia.mj.impl.runtimesupport.JvmPort#setSystemProperty.
+     */
+    public void setSystemProperty(Object key, Object value)
+{
+        mPropertiesContainer.put(key, value);
+    }
+
+    /**
+     * @see com.nokia.mj.impl.runtimesupport.JvmPort#shrinkJavaHeapToMinimum.
+     */
+    public abstract int shrinkJavaHeapToMinimum();
+
+    /**
+     * @see com.nokia.mj.impl.runtimesupport.JvmPort#expandJavaHeap.
+     */
+    public abstract int expandJavaHeap(int amount);
+
+}