src/hotspot/share/code/stubs.cpp

 }
 
 
 Stub* StubQueue::request(int requested_code_size) {
   assert(requested_code_size > 0, "requested_code_size must be > 0");
-  if (_mutex != NULL) _mutex->lock();
+  if (_mutex != NULL) _mutex->lock_without_safepoint_check();
   Stub* s = current_stub();
   int requested_size = align_up(stub_code_size_to_size(requested_code_size), CodeEntryAlignment);
   if (requested_size <= available_space()) {
     if (is_contiguous()) {
       // Queue: |...|XXXXXXX|.............|

@@ -205,11 +205,11
 
 
 void StubQueue::verify() {
   // verify only if initialized
   if (_stub_buffer == NULL) return;
-  MutexLockerEx lock(_mutex);
+  MutexLockerEx lock(_mutex, Mutex::_no_safepoint_check_flag);
   // verify index boundaries
   guarantee(0 <= _buffer_size, "buffer size must be positive");
   guarantee(0 <= _buffer_limit && _buffer_limit <= _buffer_size , "_buffer_limit out of bounds");
   guarantee(0 <= _queue_begin  && _queue_begin  <  _buffer_limit, "_queue_begin out of bounds");
   guarantee(0 <= _queue_end    && _queue_end    <= _buffer_limit, "_queue_end   out of bounds");

@@ -232,11 +232,10
   guarantee(_queue_begin != _queue_end || n == 0, "buffer indices must be the same");
 }
 
 
 void StubQueue::print() {
-  MutexLockerEx lock(_mutex);
+  MutexLockerEx lock(_mutex, Mutex::_no_safepoint_check_flag);
   for (Stub* s = first(); s != NULL; s = next(s)) {
     stub_print(s);
   }
 }
-