--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javacommons/utils/javasrc/com/nokia/mj/impl/rt/support/Jvm.java	Mon May 03 12:27:20 2010 +0300
@@ -0,0 +1,111 @@
+/*
+* 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.support;
+
+import com.nokia.mj.impl.rt.JvmPort;
+
+/**
+ * Provides JVM utilities for Java API implementations to use. Some of these
+ * utilities hide differences between CLDC and CDC configurations and some
+ * provide completely non-standard access to JVM features and to process memory.
+ *<p>
+ * Example how to load a system library
+ * <pre>
+ * package com.nokia.mj.impl.mypackage;
+ *
+ * import com.nokia.mj.impl.rt.support;
+ *      public void myClass()
+ *      {
+ *          public void myMethod()
+ *          {
+ *              //loads the system library.
+ *              Jvm.loadSystemLibrary("my_system_library");
+ *
+ *              //my implementation...
+ *          }
+ *      }
+ *</pre>
+ * @author Nokia Corporation
+ * @version 1.0
+ */
+
+public class Jvm
+{
+    /**
+     * Loads the system library specified by the libName argument.
+     * <p>
+     * This method uses <code>System.loadLibrary</code> in CDC based
+     * configuration while in CLDC a proprieatary API is used.
+     * @param libName The name of the library.
+     */
+    public static void loadSystemLibrary(String libName)
+    {
+        JvmPort.getInstance().loadSystemLibrary(libName);
+    }
+
+    /**
+     * JAVADOCS ARE UNDER CONSTRUCTION!!
+     * <p>
+     * Returns the Class object associated with the class or interface with the
+     * given string name.
+     * @param name A fully qualified name of the desired class.
+     * @return class object representing the desired class .
+     */
+    public static Class loadApplicationClass(String name)
+    throws ClassNotFoundException
+    {
+        return JvmPort.getInstance().loadApplicationClass(name);
+    }
+
+    /**
+     * Marks the given thread as either a daemon thread or a user thread
+     * This can only be done before the Thread starts running.
+     * @param thread The thread to be modified.
+     * @param daemon If true, marks the given thread as a daemon thread.
+     * @throws IllegalThreadStateException if the Thread has already been
+     * started.
+     * @throws SecurityException if the caller is not in the boot class path.
+     */
+    public static void setThreadAsDaemon(Thread thread, boolean daemon)
+    throws IllegalThreadStateException, SecurityException
+    {
+        JvmPort.getInstance().setThreadAsDaemon(thread, daemon);
+    }
+
+    /**
+     * JAVADOCS ARE UNDER CONSTRUCTION!!
+     * <p>
+     * Gets a NativeMemoryBlock. NativeMemoryBlock provids a way
+     * read the whole content of resource in jar file into native memory
+     * buffer. The content is not copien into Java side - only pointer
+     * and size of the data is usable in the Java side.
+     *
+     * @param jarPath If jarPath is null then the resource is searched from
+     * the classpath - like in normal class.getResourceAsStream. If it is
+     * provided then it can be any Jar file availble in the file system.
+     * @param resName Name of the desired resource
+     *
+     * @return MemoryInputStream object as InputStream if resource is found,
+     *         otherwise null.
+     */
+    public static NativeMemoryBlock getResourceAsNativeMemory(String jarPath,
+            String resName)
+    {
+        return JvmPort.getInstance().getResourceAsNativeMemory(jarPath, resName);
+    }
+}