Android JUnit don't compile if objects are parcelable

Question

I have a very simple class, and I have writen a very simple Junit test which is successfull.

Now I add implements Parcelable to my class. My code compliles well and the app works well, but my Junit test don't compile anymore, because of NoClassDefFoundError: android/os/Parcelable

I am not trying to test the parcelable properties, I just need my test to compile.

I guess there is a configuration problem but I can't find what to change to fix this.

I work on Android Studio 2.3. I have already tried to restart android studio / rebuild / clean...

Help would be apreciated.

java.lang.NoClassDefFoundError: android/os/Parcelable      at java.lang.ClassLoader.defineClass1(Native Method)     at java.lang.ClassLoader.defineClass(ClassLoader.java:763)     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)     at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)     at java.net.URLClassLoader.access$100(URLClassLoader.java:73)     at java.net.URLClassLoader$1.run(URLClassLoader.java:368)     at java.net.URLClassLoader$1.run(URLClassLoader.java:362)     at java.security.AccessController.doPrivileged(Native Method)     at java.net.URLClassLoader.findClass(URLClassLoader.java:361)     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)     at com.example.me.myapp.PropositionUnitTest.isDeltaCPositiveOrNullIsCorrect1(PropositionUnitTest.java:53)     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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)     at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)     at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)     at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)     at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)     at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)     at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)     at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)     at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)     at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)     at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)     at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)     at org.junit.runners.ParentRunner.run(ParentRunner.java:363)     at org.mockito.internal.runners.JUnit45AndHigherRunnerImpl.run(JUnit45AndHigherRunnerImpl.java:37)     at org.mockito.runners.MockitoJUnitRunner.run(MockitoJUnitRunner.java:62)     at org.junit.runner.JUnitCore.run(JUnitCore.java:137)     at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)     at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)     at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262)     at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84)     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)     at java.lang.reflect.Method.invoke(Method.java:498)     at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) Caused by: java.lang.ClassNotFoundException: android.os.Parcelable     at java.net.URLClassLoader.findClass(URLClassLoader.java:381)     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)     ... 42 more 

Answer 1

All of sudden, I started facing the same problem and unlike other's I don't have the option of copy n paste the test files into new project. What i did is just delete the .gradle and .idea folder from the root directory and build the project. It works for me.