2006-08-14 Mark Wielaard <mark@klomp.org>

       Imported GNU Classpath 0.92
       * HACKING: Add more importing hints. Update automake version
       requirement.

       * configure.ac (gconf-peer): New enable AC argument.
       Add --disable-gconf-peer and --enable-default-preferences-peer
       to classpath configure when gconf is disabled.
       * scripts/makemake.tcl: Set gnu/java/util/prefs/gconf and
       gnu/java/awt/dnd/peer/gtk to bc. Classify
       gnu/java/security/Configuration.java as generated source file.

       * gnu/java/lang/management/VMGarbageCollectorMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryPoolMXBeanImpl.java,
       gnu/java/lang/management/VMClassLoadingMXBeanImpl.java,
       gnu/java/lang/management/VMRuntimeMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryManagerMXBeanImpl.java,
       gnu/java/lang/management/VMThreadMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryMXBeanImpl.java,
       gnu/java/lang/management/VMCompilationMXBeanImpl.java: New VM stub
       classes.
       * java/lang/management/VMManagementFactory.java: Likewise.
       * java/net/VMURLConnection.java: Likewise.
       * gnu/java/nio/VMChannel.java: Likewise.

       * java/lang/Thread.java (getState): Add stub implementation.
       * java/lang/Class.java (isEnum): Likewise.
       * java/lang/Class.h (isEnum): Likewise.

       * gnu/awt/xlib/XToolkit.java (getClasspathTextLayoutPeer): Removed.

       * javax/naming/spi/NamingManager.java: New override for StackWalker
       functionality.

       * configure, sources.am, Makefile.in, gcj/Makefile.in,
       include/Makefile.in, testsuite/Makefile.in: Regenerated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@116139 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 40 insertions, 1 deletions

diff --git a/libjava/classpath/java/lang/ThreadGroup.java b/libjava/classpath/java/lang/ThreadGroup.java
index 7fbef88f4d6..00f2f8ec47c 100644
--- a/libjava/classpath/java/lang/ThreadGroup.java
+++ b/libjava/classpath/java/lang/ThreadGroup.java
@@ -66,7 +66,7 @@ public class ThreadGroup implements UncaughtExceptionHandler
   static boolean had_uncaught_exception;
 
   /** The parent thread group. */
-  private final ThreadGroup parent;
+  final ThreadGroup parent;
 
   /** The group name, non-null. */
   final String name;
@@ -749,4 +749,43 @@ public class ThreadGroup implements UncaughtExceptionHandler
           parent.removeGroup(this);
       }
   }
+
+  /*
+   * Helper method for the VM. Find a Thread by its Id.
+   *
+   * @param id The Thread Id.
+   * @return Thread object or null if thread doesn't exist.
+   */
+  static Thread getThreadFromId(long id)
+  {
+    return root.getThreadFromIdImpl(id);
+  }
+
+  private Thread getThreadFromIdImpl(long id)
+  {
+    synchronized (threads)
+      {
+        for (int i = 0; i < threads.size(); i++)
+          {
+            Thread t = (Thread) threads.get(i);
+            if (t.getId() == id)
+              return t;
+          }
+      }
+    Vector groups = this.groups;
+    if (groups != null)
+      {
+        synchronized (groups)
+          {
+            for (int i = 0; i < groups.size(); i++)
+              {
+                ThreadGroup g = (ThreadGroup) groups.get(i);
+                Thread t = g.getThreadFromIdImpl(id);
+                if (t != null)
+                  return t;
+              }
+          }
+      }
+    return null;
+  }
 } // class ThreadGroup