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# SIGSEGV (0xb) at pc=0x00007f74d5cbb105, pid=12041, tid=12051 # # JRE version: Java(TM) SE Runtime Environment (9.0+124) (fastdebug build 9-ea+124) # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 9-ea+124, compiled mode, tiered, compressed oops, g1 gc, linux-amd64) # Problematic frame: # V [libjvm.so+0x127b105] ReceiverTypeData::clean_weak_klass_links(BoolObjectClosure*)+0x75 # --------------- T H R E A D --------------- Current thread (0x00007f74d006e000): GCTaskThread "GC Thread#1" [stack: 0x00007f74b6755000,0x00007f74b6856000] [id=12051] Stack: [0x00007f74b6755000,0x00007f74b6856000], sp=0x00007f74b6854ba0, free space=1022k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) V [libjvm.so+0x127b105] ReceiverTypeData::clean_weak_klass_links(BoolObjectClosure*)+0x75 V [libjvm.so+0x127b35e] VirtualCallData::clean_weak_klass_links(BoolObjectClosure*)+0x1e V [libjvm.so+0x12856f7] MethodData::clean_method_data(BoolObjectClosure*)+0xb7 V [libjvm.so+0xdb8ed9] InstanceKlass::clean_method_data(BoolObjectClosure*)+0x49 V [libjvm.so+0xdb8f78] InstanceKlass::clean_weak_instanceklass_links(BoolObjectClosure*)+0x28 V [libjvm.so+0xc11cc0] G1ParallelCleaningTask::work(unsigned int)+0x310 V [libjvm.so+0x17138b0] GangWorker::loop()+0xe0 V [libjvm.so+0x134a002] thread_native_entry(Thread*)+0x112