[cp-patches] ThreadLocalMap.clear() leaves map in an inconsistent state

[Robin Garner]

The clear() method of ThreadLocalMap leaves the map in an inconsistent 
state, causing errors during thread deletion in JikesRVM.  Reported as 
Bug #38576 <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38576>. This 
patch amends the clear() method to put the map back in a consistent but 
empty state.

--
Robin Garner

--- ./components/classpath/97.2p7/classpath/java/lang/ThreadLocalMap.java	2008-12-09 17:35:48.000000000 +1100
+++ ./libraryInterface/Common/src/java/lang/ThreadLocalMap.java	2008-12-17 11:40:22.000000000 +1100
@@ -301,7 +301,9 @@
    * Clear out the map. Done once during thread death.
    */
   void clear() {
-    entries = null;
+    this.entries = new Entry[1];
+    this.count = 0;
+    this.hashMask = 0;
   }
 
   /**