java.lang.Exception: Test class should have exactly one public zero-argument constructor

Stack Overflow | uvdevops | 10 months ago
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Root Cause Analysis

  1. java.lang.Exception

    Test class should have exactly one public zero-argument constructor

    at org.junit.runners.BlockJUnit4ClassRunner.validateZeroArgConstructor()
  2. JUnit
    ClassRequest.getRunner
    1. org.junit.runners.BlockJUnit4ClassRunner.validateZeroArgConstructor(BlockJUnit4ClassRunner.java:147)
    2. org.junit.runners.BlockJUnit4ClassRunner.validateConstructor(BlockJUnit4ClassRunner.java:124)
    3. org.junit.runners.BlockJUnit4ClassRunner.collectInitializationErrors(BlockJUnit4ClassRunner.java:103)
    4. org.junit.runners.ParentRunner.validate(ParentRunner.java:355)
    5. org.junit.runners.ParentRunner.<init>(ParentRunner.java:76)
    6. org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:57)
    7. org.junit.internal.builders.JUnit4Builder.runnerForClass(JUnit4Builder.java:10)
    8. org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    9. org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
    10. org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    11. org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:26)
    11 frames
  3. org.gradle.api
    SuiteTestClassProcessor.processTestClass
    1. org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:84)
    2. org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:56)
    3. org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:66)
    4. org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:51)
    4 frames
  4. Java RT
    Method.invoke
    1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    4. java.lang.reflect.Method.invoke(Method.java:606)
    4 frames
  5. Gradle Core
    ProxyDispatchAdapter$DispatchingInvocationHandler.invoke
    1. org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
    2. org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
    3. org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
    4. org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
    4 frames
  6. com.sun.proxy
    $Proxy2.processTestClass
    1. com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
    1 frame
  7. org.gradle.api
    TestWorker.processTestClass
    1. org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:109)
    1 frame
  8. Java RT
    Method.invoke
    1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    4. java.lang.reflect.Method.invoke(Method.java:606)
    4 frames
  9. Gradle Core
    ReflectionDispatch.dispatch
    1. org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
    2. org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
    2 frames
  10. org.gradle.messaging
    MessageHub$Handler.run
    1. org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:360)
    1 frame
  11. Gradle Core
    StoppableExecutorImpl$1.run
    1. org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
    2. org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
    2 frames
  12. Java RT
    Thread.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    3. java.lang.Thread.run(Thread.java:745)
    3 frames