src/share/vm/gc/serial/defNewGeneration.cpp

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -373,11 +373,11 @@
     int threads_count;
     size_t thread_increase_size = 0;
 
     // 1. Check an overflow at 'threads_count * NewSizeThreadIncrease'.
     threads_count = Threads::number_of_non_daemon_threads();
-    if (NewSizeThreadIncrease <= max_uintx / threads_count) {
+    if (threads_count > 0 && NewSizeThreadIncrease <= max_uintx / threads_count) {
       thread_increase_size = threads_count * NewSizeThreadIncrease;
 
       // 2. Check an overflow at 'new_size_candidate + thread_increase_size'.
       if (new_size_candidate <= max_uintx - thread_increase_size) {
         new_size_candidate += thread_increase_size;