java.lang.NoClassDefFoundError: hudson/tasks/Ant$AntInstallation

	at java.lang.Class.getDeclaredMethods0(Native Method)

	at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)

	at java.lang.Class.getDeclaredMethods(Class.java:1791)

	at junit.framework.TestSuite.addTestsFromTestCase(TestSuite.java:149)

	at junit.framework.TestSuite.<init>(TestSuite.java:129)

	at org.junit.internal.runners.JUnit38ClassRunner.<init>(JUnit38ClassRunner.java:71)

	at org.junit.internal.builders.JUnit3Builder.runnerForClass(JUnit3Builder.java:14)

	at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)

	at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:29)

	at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)

	at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:24)

	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:52)

	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:42)

	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:71)

	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:49)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

	at java.lang.reflect.Method.invoke(Method.java:597)

	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)

	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)

	at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)

	at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)

	at $Proxy2.processTestClass(Unknown Source)

	at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:103)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

	at java.lang.reflect.Method.invoke(Method.java:597)

	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)

	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)

	at org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:355)

	at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:66)

	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

	at java.lang.Thread.run(Thread.java:662)

Caused by: java.lang.ClassNotFoundException: hudson.tasks.Ant$AntInstallation

	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

	at java.security.AccessController.doPrivileged(Native Method)

	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

	... 36 more

org.jvnet.hudson.reactor.ReactorException: java.lang.Error: java.lang.reflect.InvocationTargetException

	at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:246)

	at jenkins.InitReactorRunner.run(InitReactorRunner.java:43)

	at jenkins.model.Jenkins.executeReactor(Jenkins.java:894)

	at jenkins.model.Jenkins.<init>(Jenkins.java:796)

	at hudson.model.Hudson.<init>(Hudson.java:81)

	at org.jvnet.hudson.test.HudsonTestCase.newHudson(HudsonTestCase.java:478)

	at org.jvnet.hudson.test.HudsonTestCase.setUp(HudsonTestCase.java:315)

	at junit.framework.TestCase.runBare(TestCase.java:132)

	at org.jvnet.hudson.test.HudsonTestCase.runBare(HudsonTestCase.java:293)

	at junit.framework.TestResult$1.protect(TestResult.java:110)

	at junit.framework.TestResult.runProtected(TestResult.java:128)

	at junit.framework.TestResult.run(TestResult.java:113)

	at junit.framework.TestCase.run(TestCase.java:124)

	at junit.framework.TestSuite.runTest(TestSuite.java:243)

	at junit.framework.TestSuite.run(TestSuite.java:238)

	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)

	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:55)

	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:42)

	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:71)

	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:49)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

	at java.lang.reflect.Method.invoke(Method.java:597)

	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)

	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)

	at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)

	at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)

	at $Proxy2.processTestClass(Unknown Source)

	at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:103)

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

	at java.lang.reflect.Method.invoke(Method.java:597)

	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)

	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)

	at org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:355)

	at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:66)

	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

	at java.lang.Thread.run(Thread.java:662)

Caused by: java.lang.Error: java.lang.reflect.InvocationTargetException

	at hudson.init.InitializerFinder.invoke(InitializerFinder.java:124)

	at hudson.init.InitializerFinder$TaskImpl.run(InitializerFinder.java:184)

	at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259)

	at jenkins.model.Jenkins$7.runTask(Jenkins.java:883)

	at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187)

	at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94)

	... 3 more

Caused by: java.lang.reflect.InvocationTargetException

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

	at java.lang.reflect.Method.invoke(Method.java:597)

	at hudson.init.InitializerFinder.invoke(InitializerFinder.java:120)

	... 8 more

Caused by: java.lang.NullPointerException

	at hudson.diagnosis.NullIdDescriptorMonitor.verifyId(NullIdDescriptorMonitor.java:86)

	... 13 more