twolf@beowulf:~$ jstack 14141 14141: Unable to open socket file: target process not responding or HotSpot VM not loaded The -F option can be used when the target process is not responding twolf@beowulf:~$ jstack -F 14141 Attaching to process ID 14141, please wait... Debugger attached successfully. Client compiler detected. JVM version is 11.3-b02 Deadlock Detection: java.lang.NullPointerException at sun.jvm.hotspot.oops.InstanceKlass.computeSubtypeOf(InstanceKlass.java:426) at sun.jvm.hotspot.oops.Klass.isSubtypeOf(Klass.java:137) at sun.jvm.hotspot.oops.Oop.isA(Oop.java:92) at sun.jvm.hotspot.runtime.DeadlockDetector.print(DeadlockDetector.java:93) at sun.jvm.hotspot.runtime.DeadlockDetector.print(DeadlockDetector.java:39) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:52) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45) at sun.jvm.hotspot.tools.JStack.run(JStack.java:60) at sun.jvm.hotspot.tools.Tool.start(Tool.java:221) at sun.jvm.hotspot.tools.JStack.main(JStack.java:86) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at sun.tools.jstack.JStack.runJStackTool(JStack.java:118) at sun.tools.jstack.JStack.main(JStack.java:84) Can't print deadlocks:null Thread 14552: (state = BLOCKED) Error occurred during stack walking: sun.jvm.hotspot.utilities.AssertionFailure: overflow at sun.jvm.hotspot.utilities.Assert.that(Assert.java:32) at sun.jvm.hotspot.compiler.OopMapSet.updateRegisterMap(OopMapSet.java:266) at sun.jvm.hotspot.runtime.x86.X86Frame.senderForCompiledFrame(X86Frame.java:354) at sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:283) at sun.jvm.hotspot.runtime.Frame.sender(Frame.java:194) at sun.jvm.hotspot.runtime.VFrame.newVFrame(VFrame.java:83) at sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:224) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:76) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45) at sun.jvm.hotspot.tools.JStack.run(JStack.java:60) at sun.jvm.hotspot.tools.Tool.start(Tool.java:221) at sun.jvm.hotspot.tools.JStack.main(JStack.java:86) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at sun.tools.jstack.JStack.runJStackTool(JStack.java:118) at sun.tools.jstack.JStack.main(JStack.java:84) Thread 14288: (state = BLOCKED) Error occurred during stack walking: sun.jvm.hotspot.utilities.AssertionFailure: overflow at sun.jvm.hotspot.utilities.Assert.that(Assert.java:32) at sun.jvm.hotspot.compiler.OopMapSet.updateRegisterMap(OopMapSet.java:266) at sun.jvm.hotspot.runtime.x86.X86Frame.senderForCompiledFrame(X86Frame.java:354) at sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:283) at sun.jvm.hotspot.runtime.Frame.sender(Frame.java:194) at sun.jvm.hotspot.runtime.VFrame.newVFrame(VFrame.java:83) at sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:224) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:76) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45) at sun.jvm.hotspot.tools.JStack.run(JStack.java:60) at sun.jvm.hotspot.tools.Tool.start(Tool.java:221) at sun.jvm.hotspot.tools.JStack.main(JStack.java:86) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at sun.tools.jstack.JStack.runJStackTool(JStack.java:118) at sun.tools.jstack.JStack.main(JStack.java:84) Thread 14182: (state = BLOCKED) - org.openide.util.RequestProcessor$Processor.put(org.openide.util.RequestProcessor$Processor, java.lang.String) @bci=6, line=919 (Interpreted frame) - org.openide.util.RequestProcessor.askForWork(org.openide.util.RequestProcessor$Processor, java.lang.String) @bci=30, line=506 (Interpreted frame) - org.openide.util.RequestProcessor$Processor.run() @bci=156, line=995 (Interpreted frame) Thread 14181: (state = BLOCKED) - org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.factories() @bci=0, line=615 (Interpreted frame) - org.netbeans.modules.masterfs.filebasedfs.FileBasedFileSystem.factories() @bci=0, line=120 (Interpreted frame) - org.netbeans.modules.masterfs.filebasedfs.fileobjects.RootObj.invokeRefreshFor(java.io.File[]) @bci=37, line=144 (Interpreted frame) - org.netbeans.modules.masterfs.filebasedfs.fileobjects.RootObj.setAttribute(java.lang.String, java.lang.Object) @bci=24, line=131 (Interpreted frame) - org.openide.filesystems.FileUtil.refreshFor(java.io.File[]) @bci=16, line=149 (Interpreted frame) - org.openide.filesystems.FileUtil.refreshAll() @bci=3, line=162 (Interpreted frame) - org.netbeans.core.ui.warmup.MenuWarmUpTask$NbWindowsAdapter.run() @bci=4, line=157 (Interpreted frame) - org.openide.util.RequestProcessor$Task.run() @bci=15, line=573 (Interpreted frame) - org.openide.util.RequestProcessor$Processor.run() @bci=235, line=1005 (Interpreted frame) Thread 14142: (state = BLOCKED) Thread 14174: (state = BLOCKED) Error occurred during stack walking: sun.jvm.hotspot.utilities.AssertionFailure: overflow at sun.jvm.hotspot.utilities.Assert.that(Assert.java:32) at sun.jvm.hotspot.compiler.OopMapSet.updateRegisterMap(OopMapSet.java:266) at sun.jvm.hotspot.runtime.x86.X86Frame.senderForCompiledFrame(X86Frame.java:354) at sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:283) at sun.jvm.hotspot.runtime.Frame.sender(Frame.java:194) at sun.jvm.hotspot.runtime.VFrame.newVFrame(VFrame.java:83) at sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:224) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:76) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45) at sun.jvm.hotspot.tools.JStack.run(JStack.java:60) at sun.jvm.hotspot.tools.Tool.start(Tool.java:221) at sun.jvm.hotspot.tools.JStack.main(JStack.java:86) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at sun.tools.jstack.JStack.runJStackTool(JStack.java:118) at sun.tools.jstack.JStack.main(JStack.java:84) Thread 14173: (state = BLOCKED) - java.lang.Object.wait(long) @bci=0 (Interpreted frame) - java.lang.Object.wait() @bci=2, line=485 (Interpreted frame) - org.netbeans.lib.profiler.ProfilerClient$SeparateCmdExecutionThread.run() @bci=23, line=102 (Interpreted frame) Thread 14172: (state = BLOCKED) - java.lang.Object.wait(long) @bci=0 (Interpreted frame) - java.lang.Object.wait() @bci=2, line=485 (Interpreted frame) - java.util.prefs.AbstractPreferences$EventDispatchThread.run() @bci=22, line=1461 (Interpreted frame) Thread 14163: (state = BLOCKED) Error occurred during stack walking: sun.jvm.hotspot.utilities.AssertionFailure: overflow at sun.jvm.hotspot.utilities.Assert.that(Assert.java:32) at sun.jvm.hotspot.compiler.OopMapSet.updateRegisterMap(OopMapSet.java:266) at sun.jvm.hotspot.runtime.x86.X86Frame.senderForCompiledFrame(X86Frame.java:354) at sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:283) at sun.jvm.hotspot.runtime.Frame.sender(Frame.java:194) at sun.jvm.hotspot.runtime.VFrame.newVFrame(VFrame.java:83) at sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:224) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:76) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45) at sun.jvm.hotspot.tools.JStack.run(JStack.java:60) at sun.jvm.hotspot.tools.Tool.start(Tool.java:221) at sun.jvm.hotspot.tools.JStack.main(JStack.java:86) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at sun.tools.jstack.JStack.runJStackTool(JStack.java:118) at sun.tools.jstack.JStack.main(JStack.java:84) Thread 14161: (state = BLOCKED) - java.lang.Object.wait(long) @bci=0 (Interpreted frame) - java.lang.Object.wait() @bci=2, line=485 (Interpreted frame) - sun.awt.AWTAutoShutdown.run() @bci=32, line=259 (Interpreted frame) - java.lang.Thread.run() @bci=11, line=619 (Interpreted frame) Thread 14160: (state = BLOCKED) Error occurred during stack walking: sun.jvm.hotspot.utilities.AssertionFailure: overflow at sun.jvm.hotspot.utilities.Assert.that(Assert.java:32) at sun.jvm.hotspot.compiler.OopMapSet.updateRegisterMap(OopMapSet.java:266) at sun.jvm.hotspot.runtime.x86.X86Frame.senderForCompiledFrame(X86Frame.java:354) at sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:283) at sun.jvm.hotspot.runtime.Frame.sender(Frame.java:194) at sun.jvm.hotspot.runtime.VFrame.newVFrame(VFrame.java:83) at sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:224) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:76) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45) at sun.jvm.hotspot.tools.JStack.run(JStack.java:60) at sun.jvm.hotspot.tools.Tool.start(Tool.java:221) at sun.jvm.hotspot.tools.JStack.main(JStack.java:86) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at sun.tools.jstack.JStack.runJStackTool(JStack.java:118) at sun.tools.jstack.JStack.main(JStack.java:84) Thread 14159: (state = BLOCKED) - sun.misc.Unsafe.park(boolean, long) @bci=0 (Compiled frame; information may be imprecise) Error occurred during stack walking: java.lang.NullPointerException at sun.jvm.hotspot.runtime.Frame.addressOfStackSlot(Frame.java:224) at sun.jvm.hotspot.runtime.x86.X86Frame.senderForCompiledFrame(X86Frame.java:342) at sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:283) at sun.jvm.hotspot.runtime.Frame.sender(Frame.java:194) at sun.jvm.hotspot.runtime.Frame.realSender(Frame.java:199) at sun.jvm.hotspot.runtime.VFrame.sender(VFrame.java:119) at sun.jvm.hotspot.runtime.CompiledVFrame.sender(CompiledVFrame.java:168) at sun.jvm.hotspot.runtime.VFrame.javaSender(VFrame.java:146) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:76) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45) at sun.jvm.hotspot.tools.JStack.run(JStack.java:60) at sun.jvm.hotspot.tools.Tool.start(Tool.java:221) at sun.jvm.hotspot.tools.JStack.main(JStack.java:86) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at sun.tools.jstack.JStack.runJStackTool(JStack.java:118) at sun.tools.jstack.JStack.main(JStack.java:84) Thread 14156: (state = BLOCKED) - java.lang.Class.getDeclaredMethods0(boolean) @bci=0 (Interpreted frame) - java.lang.Class.privateGetDeclaredMethods(boolean) @bci=72, line=2427 (Compiled frame) - java.lang.Class.getDeclaredMethod(java.lang.String, java.lang.Class[]) @bci=10, line=1935 (Compiled frame) - java.lang.Thread$1.run() @bci=19, line=1549 (Interpreted frame) - java.security.AccessController.doPrivileged(java.security.PrivilegedAction) @bci=0 (Compiled frame) Error occurred during stack walking: java.lang.NullPointerException at sun.jvm.hotspot.runtime.Frame.addressOfStackSlot(Frame.java:224) at sun.jvm.hotspot.runtime.x86.X86Frame.senderForCompiledFrame(X86Frame.java:342) at sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:283) at sun.jvm.hotspot.runtime.Frame.sender(Frame.java:194) at sun.jvm.hotspot.runtime.Frame.realSender(Frame.java:199) at sun.jvm.hotspot.runtime.VFrame.sender(VFrame.java:119) at sun.jvm.hotspot.runtime.CompiledVFrame.sender(CompiledVFrame.java:168) at sun.jvm.hotspot.runtime.VFrame.javaSender(VFrame.java:146) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:76) at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45) at sun.jvm.hotspot.tools.JStack.run(JStack.java:60) at sun.jvm.hotspot.tools.Tool.start(Tool.java:221) at sun.jvm.hotspot.tools.JStack.main(JStack.java:86) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at sun.tools.jstack.JStack.runJStackTool(JStack.java:118) at sun.tools.jstack.JStack.main(JStack.java:84) Thread 14155: (state = IN_NATIVE) - java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) @bci=0 (Interpreted frame) - java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=7, line=384 (Interpreted frame) - java.net.ServerSocket.implAccept(java.net.Socket) @bci=60, line=453 (Interpreted frame) - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame) - org.netbeans.CLIHandler$Server.run() @bci=61, line=1003 (Interpreted frame) Thread 14154: (state = BLOCKED) - java.lang.Object.wait(long) @bci=0 (Interpreted frame) - java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=116 (Compiled frame) - org.openide.util.Utilities$ActiveQueue.run() @bci=2, line=3153 (Compiled frame) - java.lang.Thread.run() @bci=11, line=619 (Interpreted frame) Thread 14150: (state = BLOCKED) Thread 14149: (state = BLOCKED) Thread 14148: (state = BLOCKED) - java.lang.Object.wait(long) @bci=0 (Interpreted frame) - java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=116 (Compiled frame) - java.lang.ref.ReferenceQueue.remove() @bci=2, line=132 (Compiled frame) - java.lang.ref.Finalizer$FinalizerThread.run() @bci=3, line=159 (Compiled frame) Thread 14147: (state = BLOCKED) - java.lang.Object.wait(long) @bci=0 (Interpreted frame) - java.lang.Object.wait() @bci=2, line=485 (Compiled frame) - java.lang.ref.Reference$ReferenceHandler.run() @bci=46, line=116 (Compiled frame)