625 // Need to check for an unattached thread as only attached threads
626 // can acquire the lock.
627 Thread* current = Thread::current_or_null();
628 if (current != nullptr && current != _shutdown_thread) {
629 // _vm_exited is set at safepoint, and the Threads_lock is never released
630 // so we will block here until the process dies.
631 Threads_lock->lock();
632 ShouldNotReachHere();
633 }
634 }
635 }
636
637 void VM_PrintCompileQueue::doit() {
638 CompileBroker::print_compile_queues(_out);
639 }
640
641 #if INCLUDE_SERVICES
642 void VM_PrintClassHierarchy::doit() {
643 KlassHierarchy::print_class_hierarchy(_out, _print_interfaces, _print_subclasses, _classname);
644 }
645 #endif
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625 // Need to check for an unattached thread as only attached threads
626 // can acquire the lock.
627 Thread* current = Thread::current_or_null();
628 if (current != nullptr && current != _shutdown_thread) {
629 // _vm_exited is set at safepoint, and the Threads_lock is never released
630 // so we will block here until the process dies.
631 Threads_lock->lock();
632 ShouldNotReachHere();
633 }
634 }
635 }
636
637 void VM_PrintCompileQueue::doit() {
638 CompileBroker::print_compile_queues(_out);
639 }
640
641 #if INCLUDE_SERVICES
642 void VM_PrintClassHierarchy::doit() {
643 KlassHierarchy::print_class_hierarchy(_out, _print_interfaces, _print_subclasses, _classname);
644 }
645
646 void VM_PrintClassLayout::doit() {
647 PrintClassLayout::print_class_layout(_out, _class_name);
648 }
649 #endif
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