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java.lang.Exception: No runnable methods  	at org.junit.runners.BlockJUnit4ClassRunner.validateInstanceMethods(BlockJUnit4ClassRunner.java:177)	at org.junit.runners.BlockJUnit4ClassRunner.collectInitializationErrors(BlockJUnit4ClassRunner.java:122)	at org.junit.runners.ParentRunner.validate(ParentRunner.java:269)	at org.junit.runners.ParentRunner.(ParentRunner.java:66)	at org.junit.runners.BlockJUnit4ClassRunner.(BlockJUnit4ClassRunner.java:58)	at org.junit.internal.builders.JUnit4Builder.runnerForClass(JUnit4Builder.java:13)	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.runners.model.RunnerBuilder.runners(RunnerBuilder.java:93)	at org.junit.runners.model.RunnerBuilder.runners(RunnerBuilder.java:84)	at org.junit.runners.Suite.(Suite.java:101)	at org.junit.runners.Suite.(Suite.java:67)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:532)	at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:35)	at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:24)	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.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.(JUnit4TestReference.java:29)	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestClassReference.(JUnit4TestClassReference.java:25)	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:40)	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:30)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:452)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)