Classpath issues

[andre15silva]

When running astor's example chart11, we get the following error:

java.lang.ClassNotFoundException: org.jfree.data.general.SeriesChangeListener
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at javax.swing.event.EventListenerList.readObject(EventListenerList.java:277)
at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1184)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2296)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2405)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2329)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:503)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:461)
at java.util.ArrayList.readObject(ArrayList.java:799)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1184)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2296)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2405)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2329)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:503)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:461)
at org.jfree.chart.util.AbstractObjectList.readObject(AbstractObjectList.java:288)
at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1184)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2296)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2405)
at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:633)
at org.jfree.chart.plot.XYPlot.readObject(XYPlot.java:5012)
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 java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1184)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2296)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:503)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:461)
at java.util.ArrayList.readObject(ArrayList.java:799)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1184)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2296)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2405)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2329)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:503)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:461)
at org.jfree.chart.plot.junit.CombinedDomainXYPlotTests.testSerialization(CombinedDomainXYPlotTests.java:158)
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 junit.framework.TestCase.runTest(TestCase.java:177)
at junit.framework.TestCase.runBare(TestCase.java:142)
at junit.framework.TestResult$1.protect(TestResult.java:122)
at junit.framework.TestResult.runProtected(TestResult.java:142)
at junit.framework.TestResult.run(TestResult.java:125)
at junit.framework.TestCase.run(TestCase.java:130)
at junit.framework.TestSuite.runTest(TestSuite.java:241)
at junit.framework.TestSuite.run(TestSuite.java:236)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:90)
at org.junit.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at eu.stamp_project.testrunner.runner.JUnit4Runner.run(JUnit4Runner.java:63)
at eu.stamp_project.testrunner.runner.coverage.JUnit4JacocoRunnerCoveredResultPerTestMethod.executeCoveredTestPerTestMethod(JUnit4JacocoRunnerCoveredResultPerTestMethod.java:32)
at eu.stamp_project.testrunner.runner.coverage.JacocoRunnerCoveredResultPerTestMethod.runCoveredTestResultPerTestMethod(JacocoRunnerCoveredResultPerTestMethod.java:64)
at eu.stamp_project.testrunner.runner.coverage.JUnit4JacocoRunnerCoveredResultPerTestMethod.main(JUnit4JacocoRunnerCoveredResultPerTestMethod.java:50)

This results in tests that should not fail failing, and therefore different FL results.

My intepretation is that this fails because we do not include the source|test binaries in the new process's classpath. If we do, however, we get errors due to conflicting versions of the same class (instrumented and not-instrumented).

One way of possibly solving this issue is to use online instrumentation in test-runner.

[andre15silva]

The online instrumentation mode does fix this issue.

Working on polishing the online mode for test-runner (see STAMP-project/test-runner#117).

This will also mean that we will support running flacoco without specifying the test/source binaries location (required for nopol), and just the classpath.

[martinezmatias]

Hi @andre15silva

Thanks for the update!