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RCA fails in Android project #221

Open
Tracked by #100
alex-iotiq opened this issue Jan 17, 2023 · 1 comment
Open
Tracked by #100

RCA fails in Android project #221

alex-iotiq opened this issue Jan 17, 2023 · 1 comment

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@alex-iotiq
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After successful RTS and measurement steps in Jenkins for the Android example project, RCA fails with this error

java.lang.NullPointerException: Attempt to invoke virtual method 'boolean kieker.monitoring.writer.MonitoringWriterThread.isAlive()' on a null object reference.

Log

com.example.android_example.LogHistoryInstrumentedTest:
Error in logHistory_ParcelableWriteRead(com.example.android_example.LogHistoryInstrumentedTest):
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean kieker.monitoring.writer.MonitoringWriterThread.isAlive()' on a null object reference
	at de.dagere.kopeme.kieker.KoPeMeKiekerSupport.finishMonitoring(KoPeMeKiekerSupport.java:156)
	at de.dagere.kopeme.kieker.KoPeMeKiekerSupport.waitForEnd(KoPeMeKiekerSupport.java:94)
	at de.dagere.kopeme.TimeBoundExecution.finishKieker(TimeBoundExecution.java:89)
	at de.dagere.kopeme.TimeBoundExecution.execute(TimeBoundExecution.java:77)
	at de.dagere.kopeme.junit.rule.KoPeMeRuleStatement4.evaluate(KoPeMeRuleStatement4.java:87)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
	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$2.evaluate(ParentRunner.java:293)
	at androidx.test.rule.GrantPermissionRule$RequestPermissionStatement.evaluate(GrantPermissionRule.java:134)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at androidx.test.ext.junit.runners.AndroidJUnit4.run(AndroidJUnit4.java:162)
	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$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
	at androidx.test.internal.runner.TestExecutor.execute(TestExecutor.java:67)
	at androidx.test.internal.runner.TestExecutor.execute(TestExecutor.java:58)
	at androidx.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:438)
	at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:2205)


Time: 1.27
There was 1 failure:
1) logHistory_ParcelableWriteRead(com.example.android_example.LogHistoryInstrumentedTest)
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean kieker.monitoring.writer.MonitoringWriterThread.isAlive()' on a null object reference
	at de.dagere.kopeme.kieker.KoPeMeKiekerSupport.finishMonitoring(KoPeMeKiekerSupport.java:156)
	at de.dagere.kopeme.kieker.KoPeMeKiekerSupport.waitForEnd(KoPeMeKiekerSupport.java:94)
	at de.dagere.kopeme.TimeBoundExecution.finishKieker(TimeBoundExecution.java:89)
	at de.dagere.kopeme.TimeBoundExecution.execute(TimeBoundExecution.java:77)
	at de.dagere.kopeme.junit.rule.KoPeMeRuleStatement4.evaluate(KoPeMeRuleStatement4.java:87)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
	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$2.evaluate(ParentRunner.java:293)
	at androidx.test.rule.GrantPermissionRule$RequestPermissionStatement.evaluate(GrantPermissionRule.java:134)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at androidx.test.ext.junit.runners.AndroidJUnit4.run(AndroidJUnit4.java:162)
	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$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
	at androidx.test.internal.runner.TestExecutor.execute(TestExecutor.java:67)
	at androidx.test.internal.runner.TestExecutor.execute(TestExecutor.java:58)
	at androidx.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:438)
	at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:2205)

FAILURES!!!
Tests run: 1,  Failures: 1
@alex-iotiq alex-iotiq mentioned this issue Jan 17, 2023
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@alex-iotiq
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New findings and a possible solution:

// KoPeMe/kopeme-core/src/main/java/de/dagere/kopeme/kieker/KoPeMeKiekerSupport.java:153
final MonitoringWriterThread thread = getMonitoringWriterThread(writerController);

getMonitoringWriterThread probably returns null.

// KoPeMe/kopeme-core/src/main/java/de/dagere/kopeme/kieker/KoPeMeKiekerSupport.java:153
static MonitoringWriterThread getMonitoringWriterThread(final WriterController writerController)
      throws NoSuchMethodException, IllegalAccessException, InvocationTargetException, NoSuchFieldException {
   final Field monitoringWriterThreadField = WriterController.class.getDeclaredField("monitoringWriterThread");
   monitoringWriterThreadField.setAccessible(true);
   final MonitoringWriterThread thread = (MonitoringWriterThread) monitoringWriterThreadField.get(writerController);
   return thread;
}

Handling the Thread.isAlive() null exception returns different error:

System.err: Caused by: java.io.FileNotFoundException: ... /android-example-2_peass/projectTemp/parallel_7cb0b425c837229fbbc8385941c1f231bbcc054c_peass/measurementsTemp/kieker-20230120-142609-553031302952980-UTC--KIEKER-KoPeMe/measurement-0.bin: open failed: ENOENT (No such file or directory)
System.err: 	at libcore.io.IoBridge.open(IoBridge.java:492)
System.err: 	at java.io.FileOutputStream.<init>(FileOutputStream.java:236)
System.err: 	at java.io.FileOutputStream.<init>(FileOutputStream.java:186)
System.err: 	at de.dagere.kopeme.kieker.aggregateddata.FileDataManagerBin.<init>(FileDataManagerBin.java:35)
System.err: 	at de.dagere.kopeme.kieker.writer.AggregatedTreeWriter.<init>(AggregatedTreeWriter.java:64)
System.err: 	... 39 more
...
System.err: Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
...

Kieker reads its configuration from META-INF/kieker.monitoring.properties if no JVM arguments are present.

If useAggregation option is true, then AggregatedTreeWriter will be used.

It's possible to write a custom path for kieker results like de.dagere.kopeme.kieker.writer.AggregatedTreeWriter.customStoragePath=/storage/emulated/0/Documents/measurementsTemp inside.

This solution can be applied in AOPXMLHelper.java inside writeKiekerMonitoringProperties.

@alex-iotiq alex-iotiq mentioned this issue Feb 1, 2023
Merged
@alex-iotiq alex-iotiq mentioned this issue Feb 15, 2023
Open
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