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llmhyy / microbat

A feedback-based debugger for interactively recommending suspicious step in buggy program execution.
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[Agent] Lang-13: store trace fail with java.io.ObjectStreamClass being instrumented. #170

Closed lylytran closed 6 years ago

lylytran commented 6 years ago

lang-13-bug.txt E:\lyly\Projects\microbat\jdk\jdk1.7.0_80\bin\java -XX:+UseG1GC -Xmx30g -ea -noverify -javaagent:E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\instrumentator.jar=precheck=false,java_home=E:\lyly\Projects\microbat\jdk\jdk1.7.0_80,stepLimit=100000,log=printProgress;info;debug;error,require_method_split=false,working_dir=E:\linyun\bug_repo\Lang\13\bug,varLayer=2,includes=java.io.ObjectInputStream;java.io.InputStream;org.apache.commons.lang3.SerializationUtils$ClassLoaderAwareObjectInputStream;java.io.Serializable;java.lang.RuntimeException;java.lang.Exception;java.lang.Throwable;org.apache.commons.lang3.SerializationException;java.lang.Thread;java.lang.ClassLoader;java.lang.System;sun.reflect.Reflection;java.lang.Class;java.security.BasicPermission;java.security.Permission;java.lang.RuntimePermission;java.lang.SecurityManager;java.lang.ReflectiveOperationException;java.lang.ClassNotFoundException;java.io.ObjectStreamClass;java.io.ByteArrayInputStream;java.util.Map;java.util.Properties;java.util.WeakHashMap;java.util.HashMap;java.util.jar.Attributes;java.util.Collections$EmptyMap;java.util.Hashtable;java.util.AbstractMap;java.lang.ClassValue$ClassValueMap;java.util.LinkedHashMap;java.util.Collections$SingletonMap;java.io.ObjectInputStream$BlockDataInputStream;java.io.ObjectInputStream$HandleTable;java.io.ObjectInputStream$ValidationList,launch_class=org.apache.commons.lang3.SerializationUtilsTest,class_path=E:\linyun\bug_repo\Lang\13\bug\target\tests;E:\linyun\bug_repo\Lang\13\bug\target\classes;E:\linyun\bug_repo\Lang\lib\cglib-nodep-2.2.2.jar;E:\linyun\bug_repo\Lang\lib\commons-io-2.4.jar;E:\linyun\bug_repo\Lang\lib\easymock-3.1.jar;E:\linyun\bug_repo\Lang\lib\objenesis-1.2.jar;E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\junit.jar;E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\org.hamcrest.core.jar;E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\testrunner.jar;E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\bcel-6.0.jar;E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\javassist.jar,dump_file_path=E:\lyly\bug.exec,expectedSteps=46 -cp E:\linyun\bug_repo\Lang\13\bug\target\tests;E:\linyun\bug_repo\Lang\13\bug\target\classes;E:\linyun\bug_repo\Lang\lib\cglib-nodep-2.2.2.jar;E:\linyun\bug_repo\Lang\lib\commons-io-2.4.jar;E:\linyun\bug_repo\Lang\lib\easymock-3.1.jar;E:\linyun\bug_repo\Lang\lib\objenesis-1.2.jar;E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\junit.jar;E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\org.hamcrest.core.jar;E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\testrunner.jar;E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\bcel-6.0.jar;E:\lyly\eclipse-java-mars-clean\eclipse-for-unmodified-code\dropins\junit_lib\javassist.jar microbat.evaluation.junit.MicroBatTestRunner org.apache.commons.lang3.SerializationUtilsTest testPrimitiveTypeClassSerialization

NOTE: The problem might because of instrumenting java.io.ObjectStreamClass, but the behavior is hard to diagnose, it does not always happen, and seems like it won't happen if there's some time delays.

java.lang.NullPointerException at java.io.ObjectStreamClass$FieldReflector.getObjFieldValues(ObjectStreamClass.java:2046) at java.io.ObjectStreamClass.getObjFieldValues(ObjectStreamClass.java:1252) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1538) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347) at java.util.ArrayList.writeObject(ArrayList.java:742) at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347) at java.util.ArrayList.writeObject(ArrayList.java:742) at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347) at microbat.instrumentation.output.ByteConverter.convertToBytes(ByteConverter.java:20) at microbat.instrumentation.output.TraceOutputWriter.writeVarValues(TraceOutputWriter.java:189) at microbat.instrumentation.output.TraceOutputWriter.writeSteps(TraceOutputWriter.java:172) at microbat.instrumentation.output.TraceOutputWriter.writeTrace(TraceOutputWriter.java:90) at microbat.instrumentation.output.TraceOutputWriter.writeTrace(TraceOutputWriter.java:46) at microbat.instrumentation.output.RunningInfo.saveToFile(RunningInfo.java:75) at microbat.instrumentation.TraceAgent.writeOutput(TraceAgent.java:84) at microbat.instrumentation.TraceAgent.shutdown(TraceAgent.java:65) at microbat.instrumentation.Agent.stop(Agent.java:46) at microbat.instrumentation.Agent._exitProgram(Agent.java:35) at microbat.evaluation.junit.MicroBatTestRunner.$exitProgram(MicroBatTestRunner.java:77) at microbat.evaluation.junit.MicroBatTestRunner.runTest(MicroBatTestRunner.java:64) at microbat.evaluation.junit.MicroBatTestRunner.main(MicroBatTestRunner.java:28)

llmhyy commented 6 years ago

Shall we finish this by Jun 8?

lylytran commented 6 years ago

fixed.