--- a/hotspot/src/share/vm/prims/jvmtiExport.cpp	Mon Jan 10 09:23:20 2011 -0800
+++ b/hotspot/src/share/vm/prims/jvmtiExport.cpp	Mon Jan 10 17:14:53 2011 -0500
@@ -2358,15 +2358,6 @@
 }
 #endif // SERVICES_KERNEL
 
-// CMS has completed referencing processing so may need to update
-// tag maps.
-void JvmtiExport::cms_ref_processing_epilogue() {
-  if (JvmtiEnv::environments_might_exist()) {
-    JvmtiTagMap::cms_ref_processing_epilogue();
-  }
-}
-
-
 ////////////////////////////////////////////////////////////////////////////////////////////////
 
 // Setup current current thread for event collection.
@@ -2536,36 +2527,20 @@
   }
 };
 
-JvmtiGCMarker::JvmtiGCMarker(bool full) : _full(full), _invocation_count(0) {
-  assert(Thread::current()->is_VM_thread(), "wrong thread");
-
+JvmtiGCMarker::JvmtiGCMarker() {
   // if there aren't any JVMTI environments then nothing to do
   if (!JvmtiEnv::environments_might_exist()) {
     return;
   }
 
-  if (ForceFullGCJVMTIEpilogues) {
-    // force 'Full GC' was done semantics for JVMTI GC epilogues
-    _full = true;
-  }
-
-  // GarbageCollectionStart event posted from VM thread - okay because
-  // JVMTI is clear that the "world is stopped" and callback shouldn't
-  // try to call into the VM.
   if (JvmtiExport::should_post_garbage_collection_start()) {
     JvmtiExport::post_garbage_collection_start();
   }
 
-  // if "full" is false it probably means this is a scavenge of the young
-  // generation. However it could turn out that a "full" GC is required
-  // so we record the number of collections so that it can be checked in
-  // the destructor.
-  if (!_full) {
-    _invocation_count = Universe::heap()->total_full_collections();
+  if (SafepointSynchronize::is_at_safepoint()) {
+    // Do clean up tasks that need to be done at a safepoint
+    JvmtiEnvBase::check_for_periodic_clean_up();
   }
-
-  // Do clean up tasks that need to be done at a safepoint
-  JvmtiEnvBase::check_for_periodic_clean_up();
 }
 
 JvmtiGCMarker::~JvmtiGCMarker() {
@@ -2578,21 +2553,5 @@
   if (JvmtiExport::should_post_garbage_collection_finish()) {
     JvmtiExport::post_garbage_collection_finish();
   }
-
-  // we might have initially started out doing a scavenge of the young
-  // generation but could have ended up doing a "full" GC - check the
-  // GC count to see.
-  if (!_full) {
-    _full = (_invocation_count != Universe::heap()->total_full_collections());
-  }
-
-  // Full collection probably means the perm generation has been GC'ed
-  // so we clear the breakpoint cache.
-  if (_full) {
-    JvmtiCurrentBreakpoints::gc_epilogue();
-  }
-
-  // Notify heap/object tagging support
-  JvmtiTagMap::gc_epilogue(_full);
 }
 #endif // JVMTI_KERNEL