Java rmi java io eofexception

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EOFException when setting session ID via JMX #554

EOFException when setting session ID via JMX #554

Comments

JaCoCo refuses connection or randomly drops the connection via JMX (root cause: EOFException).

Steps to reproduce

JaCoCo version: 0.7.9
Operating system: macOS Sierra / Ubuntu 16
Tool integration: Gradle

I’m running a few tests with gradle and the jacoco plugin applied with jmx=true.
My goal is to change the session ID and dump execution data within the JaCoCo agent after every executed test. A TestListener attached to the test task monitors the test execution and calls setSessionId via JMX.

Expected behaviour

The JaCoCo agent sets the session IDs for all tests and dumps a exec file after all tests are executed.

Actual behaviour

Depending on the number of tests that are to be executed:

1. Small number of tests (e.g. 10-500)
   Connection is refused for some reason. Adding a delay before attempting to establish the connection didn’t make it work.

java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: java.io.EOFException] at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:369) at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:270) at javax.management.remote.JMXConnectorFactory$connect.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:133) at JaCoCoRemoteJMXController.(build.gradle:85) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:83) at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:105) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:60) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:235) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:239) at GradleTestListener.getJacocoController(build.gradle:43) at GradleTestListener.afterTest(build.gradle:66) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:44) at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:79) at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:30) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93) at com.sun.proxy.$Proxy56.afterTest(Unknown Source) at org.gradle.api.internal.tasks.testing.results.TestListenerAdapter.completed(TestListenerAdapter.java:50) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:44) at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:79) at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:30) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93) at com.sun.proxy.$Proxy55.completed(Unknown Source) at org.gradle.api.internal.tasks.testing.results.StateTrackingTestResultProcessor.completed(StateTrackingTestResultProcessor.java:71) at org.gradle.api.internal.tasks.testing.results.AttachParentTestResultProcessor.completed(AttachParentTestResultProcessor.java:56) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29) at org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132) at org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33) at org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63) at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:46) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) Caused by: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: java.io.EOFException] at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:136) at com.sun.jndi.toolkit.url.GenericURLContext.lookup(GenericURLContext.java:205) at javax.naming.InitialContext.lookup(InitialContext.java:417) at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(RMIConnector.java:1955) at javax.management.remote.rmi.RMIConnector.findRMIServer(RMIConnector.java:1922) at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:287) . 57 more Caused by: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is: java.io.EOFException at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:304) at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202) at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:342) at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source) at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:132) . 62 more Caused by: java.io.EOFException at java.io.DataInputStream.readByte(DataInputStream.java:267) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:246) . 66 more 

1. Huge number of tests (e.g. 10000)
   Connection is established successfully, but drops after around 100 to 600 tests with an java.io.EOFException

java.lang.reflect.UndeclaredThrowableException at com.sun.proxy.$Proxy72.setSessionId(Unknown Source) at JaCoCoRemoteJMXController$IProxy$setSessionId.call(Unknown Source) at JaCoCoRemoteJMXController.setSessionId(build.gradle:92) at JaCoCoRemoteJMXController$setSessionId.call(Unknown Source) at GradleTestListener.afterTest(build.gradle:66) at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:44) at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:79) at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:30) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93) at com.sun.proxy.$Proxy56.afterTest(Unknown Source) at org.gradle.api.internal.tasks.testing.results.TestListenerAdapter.completed(TestListenerAdapter.java:50) at sun.reflect.GeneratedMethodAccessor18.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:44) at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:79) at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:30) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93) at com.sun.proxy.$Proxy55.completed(Unknown Source) at org.gradle.api.internal.tasks.testing.results.StateTrackingTestResultProcessor.completed(StateTrackingTestResultProcessor.java:71) at org.gradle.api.internal.tasks.testing.results.AttachParentTestResultProcessor.completed(AttachParentTestResultProcessor.java:56) at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.dispatch.FailureHandlingDispatch.dispatch(FailureHandlingDispatch.java:29) at org.gradle.internal.dispatch.AsyncDispatch.dispatchMessages(AsyncDispatch.java:132) at org.gradle.internal.dispatch.AsyncDispatch.access$000(AsyncDispatch.java:33) at org.gradle.internal.dispatch.AsyncDispatch$1.run(AsyncDispatch.java:72) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63) at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:46) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) Caused by: java.rmi.UnmarshalException: Error unmarshaling return header; nested exception is: java.io.EOFException at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:229) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:162) at com.sun.jmx.remote.internal.PRef.invoke(Unknown Source) at javax.management.remote.rmi.RMIConnectionImpl_Stub.setAttribute(Unknown Source) at javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.setAttribute(RMIConnector.java:961) at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:291) . 42 more Caused by: java.io.EOFException at java.io.DataInputStream.readByte(DataInputStream.java:267) at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:215) . 47 more 

I have attached a minimal failing example. To reproduce the issue run ./gradlew test . To change the number of tests edit the constant REPETITIONS within SomeTestTest.java .

Is this a bug or am I missing something?

Thanks in advance for your help

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