Hi Dharshana,

I am writing a PAX Exam test cases [1] ( You can check out and build) and
getting following error [2]. Even I get this error, it is not affecting to
test scenarios. Any thoughts on this. ?

[1] - https://github.com/hasithaa/carbon-business-process

[2] -
14:30:14.222 [Framework Event Dispatcher: Equinox Container:
400bc2c0-c420-0016-1f8b-9c0e9399ab0f] ERROR org.wso2.carbon.bpmn -
FrameworkEvent ERROR - org.wso2.carbon.bpmn
org.osgi.framework.ServiceException:
org.eclipse.equinox.internal.ds.ServiceReg.getService() returned a service
object that is not an instance of the service class
org.wso2.carbon.bpmn.core.BPMNEngineService
at
org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse.factoryGetService(ServiceFactoryUse.java:243)
~[?:?]
at
org.eclipse.osgi.internal.serviceregistry.ServiceFactoryUse.getService(ServiceFactoryUse.java:111)
~[?:?]
at
org.eclipse.osgi.internal.serviceregistry.ServiceConsumer$2.getService(ServiceConsumer.java:45)
~[?:?]
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:496)
~[?:?]
at
org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.getService(ServiceRegistry.java:461)
~[?:?]
at
org.eclipse.osgi.internal.framework.BundleContextImpl.getService(BundleContextImpl.java:619)
~[?:?]
at
org.osgi.util.tracker.ServiceTracker.addingService(ServiceTracker.java:414)
~[?:?]
at
org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:941)
~[?:?]
at
org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:870)
~[?:?]
at
org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
~[?:?]
at
org.osgi.util.tracker.AbstractTracked.trackInitial(AbstractTracked.java:183)
~[?:?]
at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:318) ~[?:?]
at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:261) ~[?:?]
at
org.ops4j.pax.swissbox.tracker.ServiceLookup.getService(ServiceLookup.java:195)
~[?:?]
at
org.ops4j.pax.swissbox.tracker.ServiceLookup.getService(ServiceLookup.java:136)
~[?:?]
at
org.ops4j.pax.exam.inject.internal.ServiceInjector.injectField(ServiceInjector.java:89)
~[?:?]
at
org.ops4j.pax.exam.inject.internal.ServiceInjector.injectDeclaredFields(ServiceInjector.java:69)
~[?:?]
at
org.ops4j.pax.exam.inject.internal.ServiceInjector.injectFields(ServiceInjector.java:61)
~[?:?]
at
org.ops4j.pax.exam.raw.extender.intern.ProbeInvokerImpl.injectContextAndInvoke(ProbeInvokerImpl.java:121)
~[?:?]
at
org.ops4j.pax.exam.raw.extender.intern.ProbeInvokerImpl.findAndInvoke(ProbeInvokerImpl.java:85)
~[?:?]
at
org.ops4j.pax.exam.raw.extender.intern.ProbeInvokerImpl.call(ProbeInvokerImpl.java:73)
~[?:?]
at
org.ops4j.pax.exam.nat.internal.NativeTestContainer.call(NativeTestContainer.java:109)
~[?:?]
at
org.ops4j.pax.exam.spi.reactors.EagerSingleStagedReactor.invoke(EagerSingleStagedReactor.java:109)
~[?:?]
at org.ops4j.pax.exam.testng.listener.PaxExam.runByDriver(PaxExam.java:458)
~[?:?]
at org.ops4j.pax.exam.testng.listener.PaxExam.run(PaxExam.java:308) ~[?:?]
at
org.testng.internal.MethodInvocationHelper.invokeHookable(MethodInvocationHelper.java:212)
~[?:?]
at org.testng.internal.Invoker.invokeMethod(Invoker.java:652) ~[?:?]
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:845) ~[?:?]
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1153) ~[?:?]
at
org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
~[?:?]
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
~[?:?]
at org.testng.TestRunner.privateRun(TestRunner.java:771) ~[?:?]
at org.testng.TestRunner.run(TestRunner.java:621) ~[?:?]
at org.testng.SuiteRunner.runTest(SuiteRunner.java:357) ~[?:?]
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:352) ~[?:?]
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:310) ~[?:?]
at org.testng.SuiteRunner.run(SuiteRunner.java:259) ~[?:?]
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52) ~[?:?]
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86) ~[?:?]
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1199) ~[?:?]
at org.testng.TestNG.runSuitesLocally(TestNG.java:1124) ~[?:?]
at org.testng.TestNG.run(TestNG.java:1032) ~[?:?]
at
org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:281)
~[?:?]
at
org.apache.maven.surefire.testng.TestNGXmlTestSuite.execute(TestNGXmlTestSuite.java:75)
~[?:?]
at
org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:121)
~[?:?]
at
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
~[?:?]
at
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
~[?:?]
at
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
~[?:?]

Thanks,
Hasitha.

-- 
--
Hasitha Aravinda,
Senior Software Engineer,
WSO2 Inc.
Email: hasi...@wso2.com
Mobile : +94 718 210 200
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