1.1 --- a/src/share/vm/gc_implementation/parallelScavenge/gcTaskThread.cpp Fri Dec 09 06:46:57 2011 -0800
1.2 +++ b/src/share/vm/gc_implementation/parallelScavenge/gcTaskThread.cpp Fri Dec 09 19:28:34 2011 -0800
1.3 @@ -1,6 +1,6 @@
1.4
1.5 /*
1.6 - * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
1.7 + * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
1.8 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.9 *
1.10 * This code is free software; you can redistribute it and/or modify it
1.11 @@ -129,6 +129,8 @@
1.12 for (; /* break */; ) {
1.13 // This will block until there is a task to be gotten.
1.14 GCTask* task = manager()->get_task(which());
1.15 + // Record if this is an idle task for later use.
1.16 + bool is_idle_task = task->is_idle_task();
1.17 // In case the update is costly
1.18 if (PrintGCTaskTimeStamps) {
1.19 timer.update();
1.20 @@ -137,9 +139,13 @@
1.21 jlong entry_time = timer.ticks();
1.22 char* name = task->name();
1.23
1.24 + // If this is the barrier task, it can be destroyed
1.25 + // by the GC task manager once the do_it() executes.
1.26 task->do_it(manager(), which());
1.27
1.28 - if (!task->is_idle_task()) {
1.29 + // Use the saved value of is_idle_task because references
1.30 + // using "task" are not reliable for the barrier task.
1.31 + if (!is_idle_task) {
1.32 manager()->note_completion(which());
1.33
1.34 if (PrintGCTaskTimeStamps) {
