Mocks are not working on particular devices after update Android SDK from 33 to 34 #3171
Description
After seeing #3075, I've updated our project to Mockito 5.7.0 (btw I also tried 5.5.0), but even after that mocks are not working anymore on few on my devices. Then I was able to reproduce this issue in sample app which can be found here.
I am trying to run this test:
interface TestInterface {
fun foo(): Int
}
@RunWith(AndroidJUnit4::class)
class MockitoBugTest {
@Mock private val testInterface: TestInterface = mock(TestInterface::class.java)
@Before
fun setup() {
Mockito.`when`(testInterface.foo()).thenReturn(42)
}
@Test
fun foo() {
println("Success")
}
}
After what I receive the following error:
Stacktrace
java.lang.ExceptionInInitializerError
at org.mockito.internal.debugging.LocationFactory$DefaultLocationFactory.create(LocationFactory.java:48)
at org.mockito.internal.debugging.LocationFactory.create(LocationFactory.java:19)
at org.mockito.internal.debugging.LocationFactory.create(LocationFactory.java:15)
at org.mockito.internal.creation.bytebuddy.MockMethodInterceptor.doIntercept(MockMethodInterceptor.java:56)
at org.mockito.internal.creation.bytebuddy.MockMethodInterceptor$DispatcherDefaultingToRealMethod.interceptAbstract(MockMethodInterceptor.java:161)
at info.jukov.mockitobugtest.TestInterface$MockitoMock$KqIWwkGD.foo(Unknown Source:15)
at info.jukov.mockitobugtest.MockitoBugTest.setup(MockitoBugTest.kt:33)
... 32 trimmed
Caused by: java.lang.ClassCastException: java.util.stream.ReferencePipeline$Head cannot be cast to j$.util.stream.Stream
at org.mockito.internal.debugging.LocationImpl$$ExternalSyntheticLambda0.apply(Unknown Source:0)
at java.lang.StackStreamFactory$StackFrameTraverser.consumeFrames(StackStreamFactory.java:601)
at java.lang.StackStreamFactory$AbstractStackWalker.doStackWalk(StackStreamFactory.java:316)
at java.lang.StackStreamFactory$AbstractStackWalker.callStackWalk(StackStreamFactory.java:436)
at java.lang.StackStreamFactory$AbstractStackWalker.beginStackWalk(StackStreamFactory.java:380)
at java.lang.StackStreamFactory$AbstractStackWalker.walk(StackStreamFactory.java:251)
at java.lang.StackWalker.walk(StackWalker.java:503)
at org.mockito.internal.debugging.LocationImpl.stackWalk(LocationImpl.java:134)
at org.mockito.internal.debugging.LocationImpl.framesToSkip(LocationImpl.java:123)
at org.mockito.internal.debugging.LocationImpl.<clinit>(LocationImpl.java:59)
... 40 more
Also I've debugged mock process and found that some problem occurred in SubclassByteBuddyMockMaker.createMock method:
public <T> T createMock(MockCreationSettings<T> settings, MockHandler handler) {
...
try {
mockInstance = instantiator.newInstance(mockedProxyType);
MockAccess mockAccess = (MockAccess) mockInstance;
mockAccess.setMockitoInterceptor(new MockMethodInterceptor(handler, settings)); // Here
return ensureMockIsAssignableToMockedType(settings, mockInstance);
} catch (ClassCastException cce) {
...
}
After executing setMockitoInterceptor debugger shows me following error:
Method threw 'java.lang.NoClassDefFoundError' exception. Cannot evaluate info.jukov.mockitobugtest.TestInterface$MockitoMock$tH4GO8Yq.toString()
Additional details:
Tests are not working on:
🚫Google Pixel 6 Pro (Android 14)
🚫Solana Mobile Saga (Android 12)
🚫Emulator Android 14
Tests are working on:
✅OnePlus 9 with Lineage OS (Android 13)
✅Xiaomi Redmi 10 2022 (MIUI 12.5.26, Android 11)
✅Emulator Android 13
✅Emulator Android 12
✅Emulator Android 11
Versions:
Android target SDK: 34
Mockito version: 5.7.0 (also tried 5.5.0)
Kotlin version: 1.9.20 (also tried 1.8.22)
Java version: 11 (also tried 17)