[ecj] Patch: FYI: implement Thread.getId

[Tom Tromey <tromey at redhat dot com>]

I'm checking this in on the gcj-eclipse branch.

This implements Thread.getId by pulling in the Classpath implementation.

Tom

Index: ChangeLog
from  Tom Tromey  <tromey@redhat.com>
	* java/lang/natThread.cc (getId): Removed.
	* java/lang/Thread.java (threadId): New field.
	(totalThreadsCreated): Likewise.
	(Thread): Set threadId.
	(getId): No longer native.

Index: java/lang/Thread.java
===================================================================
--- java/lang/Thread.java	(revision 116131)
+++ java/lang/Thread.java	(working copy)
@@ -133,6 +133,12 @@
   /** The context classloader for this Thread. */
   private ClassLoader contextClassLoader;
 
+  /** This thread's ID.  */
+  private final long threadId;
+  
+  /** Used to generate the next thread ID to use.  */
+  private static long totalThreadsCreated;
+
   /** The default exception handler.  */
   private static UncaughtExceptionHandler defaultHandler;
 
@@ -383,6 +389,11 @@
 	priority = NORM_PRIORITY;
       }
 
+    synchronized (Thread.class)
+      {
+        this.threadId = ++totalThreadsCreated;
+      }
+
     name = n;
     group.addThread(this);
     runnable = r;
@@ -1040,7 +1051,10 @@
    * @return a positive long number representing the thread's ID.
    * @since 1.5 
    */
-  public native long getId();
+  public long getId()
+  {
+    return threadId;
+  }
 
   /**
    * <p>
Index: java/lang/natThread.cc
===================================================================
--- java/lang/natThread.cc	(revision 116131)
+++ java/lang/natThread.cc	(working copy)
@@ -385,13 +385,6 @@
   _Jv_ThreadYield ();
 }
 
-jlong
-java::lang::Thread::getId()
-{
-  // FIXME
-  return 5;
-}
-
 ::java::lang::Thread$State *
 java::lang::Thread::getState()
 {