8026041: JVM crashes with assert "assert(is_updated()) failed: must not be...

8026041: JVM crashes with assert "assert(is_updated()) failed: must not be clear" with -XX:+PrintGCApplicationConcurrentTime in -Xcomp mode
Summary: Prior to printing the time interval in RuntimeService::record_safepoint_begin(), check first that VM initialization is complete.
Reviewed-by: coleenp, dholmes, sla, ctornqvi
Contributed-by: lois.foltan@oracle.com

src/share/vm/services/runtimeService.cpp

 /*
- * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2013, 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
@@ -119,7 +119,7 @@ void RuntimeService::record_safepoint_begin() {
 #endif /* USDT2 */
 
   // Print the time interval in which the app was executing
-  if (PrintGCApplicationConcurrentTime) {
+  if (PrintGCApplicationConcurrentTime && _app_timer.is_updated()) {
     gclog_or_tty->date_stamp(PrintGCDateStamps);
     gclog_or_tty->stamp(PrintGCTimeStamps);
     gclog_or_tty->print_cr("Application time: %3.7f seconds",