8022836: JVM crashes in JVMTIENVBASE::GET_CURRENT_CONTENDED_MONITOR and GET_OWNED_MONITOR
Summary: Check that the _java_thread parameter is valid when it is possible that the JavaThread has exited after the initial checks were made in generated/jvmtifiles/jvmtiEnter.cpp: jvmti_GetCurrentContendedMonitor()
Reviewed-by: dcubed, dsamersoff
--- a/hotspot/src/share/vm/prims/jvmtiEnvBase.hpp Tue Sep 17 20:20:03 2013 +0200
+++ b/hotspot/src/share/vm/prims/jvmtiEnvBase.hpp Wed Sep 18 16:48:49 2013 +0400
@@ -406,7 +406,11 @@
VMOp_Type type() const { return VMOp_GetCurrentContendedMonitor; }
jvmtiError result() { return _result; }
void doit() {
- _result = ((JvmtiEnvBase *)_env)->get_current_contended_monitor(_calling_thread,_java_thread,_owned_monitor_ptr);
+ _result = JVMTI_ERROR_THREAD_NOT_ALIVE;
+ if (Threads::includes(_java_thread) && !_java_thread->is_exiting() &&
+ _java_thread->threadObj() != NULL) {
+ _result = ((JvmtiEnvBase *)_env)->get_current_contended_monitor(_calling_thread,_java_thread,_owned_monitor_ptr);
+ }
}
};