Mockito Mock-Inline

I am sorry to post here, but I have checked every forum, StackOverflow, tutorial, and message board possible and absolutely zero solutions work. At this point, I can’t say that this is a problem with me or the other tens of other users who are experiencing this issue.

My desire is “simple”: Mock final classes.

I have tried to use inline mocks to support this. The relevant part of my .gradle file looks like this:

testCompile 'junit:junit:4.12', 'org.mockito:mockito-inline:2.+'

I have also tried creating the file in test/resources/... and to equally no avail.

The all-to-familiar line of errors is here:

java.lang.ExceptionInInitializerError
	at org.mockito.internal.exceptions.stacktrace.ConditionalStackTraceFilter.<init>(ConditionalStackTraceFilter.java:17)
	at org.mockito.exceptions.base.MockitoException.filterStackTrace(MockitoException.java:41)
	at org.mockito.exceptions.base.MockitoException.<init>(MockitoException.java:30)
	at org.mockito.exceptions.misusing.MockitoConfigurationException.<init>(MockitoConfigurationException.java:18)
	at org.mockito.internal.configuration.plugins.PluginLoader.loadImpl(PluginLoader.java:66)
	at org.mockito.internal.configuration.plugins.PluginLoader.loadPlugin(PluginLoader.java:24)
	at org.mockito.internal.configuration.plugins.PluginRegistry.<init>(PluginRegistry.java:12)
	at org.mockito.internal.configuration.plugins.Plugins.<clinit>(Plugins.java:11)
	at org.mockito.internal.util.MockUtil.<clinit>(MockUtil.java:24)
	at org.mockito.internal.stubbing.defaultanswers.ReturnsEmptyValues.<init>(ReturnsEmptyValues.java:58)
	at org.mockito.internal.stubbing.defaultanswers.ReturnsMoreEmptyValues.<init>(ReturnsMoreEmptyValues.java:51)
	at org.mockito.internal.stubbing.defaultanswers.ReturnsSmartNulls.<init>(ReturnsSmartNulls.java:40)
	at org.mockito.Answers.<clinit>(Answers.java:43)
	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.lang.Class.getEnumConstantsShared(Class.java:3320)
	at java.lang.Class.enumConstantDirectory(Class.java:3341)
	at java.lang.Enum.valueOf(Enum.java:232)
	at sun.reflect.annotation.AnnotationParser.parseEnumValue(AnnotationParser.java:483)
	at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:347)
	at java.lang.reflect.Method.getDefaultValue(Method.java:606)
	at sun.reflect.annotation.AnnotationType.<init>(AnnotationType.java:132)
	at sun.reflect.annotation.AnnotationType.getInstance(AnnotationType.java:85)
	at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:266)
	at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120)
	at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72)
	at java.lang.reflect.Field.declaredAnnotations(Field.java:1150)
	at java.lang.reflect.Field.declaredAnnotations(Field.java:1148)
	at java.lang.reflect.Field.getDeclaredAnnotations(Field.java:1139)
	at java.lang.reflect.AccessibleObject.getAnnotations(AccessibleObject.java:207)
	at org.junit.runners.model.FrameworkField.getAnnotations(FrameworkField.java:31)
	at org.junit.runners.model.TestClass.addToAnnotationLists(TestClass.java:84)
	at org.junit.runners.model.TestClass.scanAnnotatedMembers(TestClass.java:71)
	at org.junit.runners.model.TestClass.<init>(TestClass.java:57)
	at org.junit.runners.ParentRunner.createTestClass(ParentRunner.java:88)
	at org.junit.runners.ParentRunner.<init>(ParentRunner.java:83)
	at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:65)
	at org.junit.internal.builders.JUnit4Builder.runnerForClass(JUnit4Builder.java:10)
	at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
	at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
	at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
	at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:33)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.runTestClass(JUnitTestClassExecutor.java:78)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:58)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:38)
	at org.gradle.api.internal.tasks.testing.junit.AbstractJUnitTestClassProcessor.processTestClass(AbstractJUnitTestClassProcessor.java:66)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:51)
	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.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:117)
	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.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:155)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:137)
	at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
	at org.mockito.internal.configuration.plugins.Plugins.getStackTraceCleanerProvider(Plugins.java:17)
	at org.mockito.internal.exceptions.stacktrace.StackTraceFilter.<clinit>(StackTraceFilter.java:21)
	... 74 more

[raphw]

It’s hard to detect and really an edge case. We make breaking changes in major releases of which we had 3 so far so it’s not really a common problem. Glad you could resolve it!

[Danc2050]

@raphw I removed the dependencies and everything works great! Mockito is a really great library that I favor using above others. I would suggest a feature that lets .jars exist in older projects, but not conflict with the main project’s version, but I know very little about this and don’t know the complexity or potentiality of implementing an issue (or if it is an issue from those old previous versions). However, I am deeply glad I reached out to you as my case was not fixed by any forum or previous answer nor would it likely have been. Thank you for helping me and providing such a great library!