mockito: Better error message if mock-maker-inline is used on Android

The “mock-maker-inline” is not available on Android, the error message can be optimized so the message “This mock maker is not supported on Android” stands on the first line of the exception.

Currently users must dig in the root cause of the IllegalStateException: Could not initialize plugin: interface org.mockito.plugins.MockMaker.

java.lang.IllegalStateException: Could not initialize plugin: interface org.mockito.plugins.MockMaker

	at org.mockito.internal.configuration.plugins.PluginLoader$1.invoke(PluginLoader.java:66)
	at com.sun.proxy.$Proxy8.isTypeMockable(Unknown Source)
	at org.mockito.internal.util.MockUtil.typeMockabilityOf(MockUtil.java:29)
	at org.mockito.internal.util.MockCreationValidator.validateType(MockCreationValidator.java:22)
	at org.mockito.internal.creation.MockSettingsImpl.validatedSettings(MockSettingsImpl.java:168)
	at org.mockito.internal.creation.MockSettingsImpl.confirm(MockSettingsImpl.java:162)
	at org.mockito.internal.MockitoCore.mock(MockitoCore.java:64)
	at org.mockito.Mockito.mock(Mockito.java:1693)
	at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:33)
	at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:16)
	at org.mockito.internal.configuration.IndependentAnnotationEngine.createMockFor(IndependentAnnotationEngine.java:38)
	at org.mockito.internal.configuration.IndependentAnnotationEngine.process(IndependentAnnotationEngine.java:62)
	at org.mockito.internal.configuration.InjectingAnnotationEngine.processIndependentAnnotations(InjectingAnnotationEngine.java:57)
	at org.mockito.internal.configuration.InjectingAnnotationEngine.process(InjectingAnnotationEngine.java:41)
	at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:69)
	at org.mockito.internal.junit.JUnitRule$1.evaluate(JUnitRule.java:42)
	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.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:119)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)
	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:144)
Caused by: java.lang.IllegalStateException: Failed to load interface org.mockito.plugins.MockMaker implementation declared in sun.misc.CompoundEnumeration@73ad2d6
	at org.mockito.internal.configuration.plugins.PluginLoader.loadImpl(PluginLoader.java:101)
	at org.mockito.internal.configuration.plugins.PluginLoader.loadPlugin(PluginLoader.java:45)
	at org.mockito.internal.configuration.plugins.PluginRegistry.<init>(PluginRegistry.java:18)
	at org.mockito.internal.configuration.plugins.Plugins.<clinit>(Plugins.java:17)
	at org.mockito.internal.configuration.GlobalConfiguration.tryGetPluginAnnotationEngine(GlobalConfiguration.java:55)
	at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:68)
	... 20 more
Caused by: org.mockito.exceptions.base.MockitoInitializationException: 
Could not initialize inline Byte Buddy mock maker. (This mock maker is not supported on Android.)

Java               : 1.8
JVM vendor name    : Oracle Corporation
JVM vendor version : 25.76-b03
JVM name           : OpenJDK 64-Bit Server VM
JVM version        : 1.8.0_76-release-b03
JVM info           : mixed mode
OS name            : Windows 7
OS version         : 6.1

at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.<init>(InlineByteBuddyMockMaker.java:172)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at java.lang.Class.newInstance(Class.java:442)
	at org.mockito.internal.configuration.plugins.PluginLoader.loadImpl(PluginLoader.java:96)
	... 25 more
Caused by: java.lang.IllegalStateException: Error during attachment using: net.bytebuddy.agent.ByteBuddyAgent$AttachmentProvider$Compound@23d4d935
	at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:316)
	at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:282)
	at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:250)
	at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:236)
	at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.<clinit>(InlineByteBuddyMockMaker.java:102)
	... 31 more
Caused by: java.lang.reflect.InvocationTargetException
	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 net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:303)
	... 35 more
Caused by: com.sun.tools.attach.AttachNotSupportedException: no providers installed
	at com.sun.tools.attach.VirtualMachine.attach(VirtualMachine.java:208)
	... 40 more

About this issue

  • Original URL
  • State: open
  • Created 7 years ago
  • Comments: 22 (9 by maintainers)

Commits related to this issue

Most upvoted comments

@raphw I wonder why I see this error at all, since I am running the test locally on a “normal” JVM+JRE not on the device or emulator?!

+10
ChristianSchwarz on Feb 10, 2017

I ran into this issue after integrating Robolectric into my tests. Is anybody else who sees this error using Robolectric? Could help explain.

	at android.net.LocalSocketImpl.bind(LocalSocketImpl.java:305)
	at android.net.LocalServerSocket.__constructor__(LocalServerSocket.java:48)
	at android.net.LocalServerSocket.<init>(LocalServerSocket.java)
	at com.facebook.stetho.server.LocalSocketServer.bindToSocket(LocalSocketServer.java:142)
	at com.facebook.stetho.server.LocalSocketServer.listenOnAddress(LocalSocketServer.java:78)
	at com.facebook.stetho.server.LocalSocketServer.run(LocalSocketServer.java:74)
	at com.facebook.stetho.server.ServerManager$1.run(ServerManager.java:40)

java.lang.IllegalStateException: Could not initialize plugin: interface org.mockito.plugins.MockMaker

	at org.mockito.internal.configuration.plugins.PluginLoader$1.invoke(PluginLoader.java:66)
	at com.sun.proxy.$Proxy23.isTypeMockable(Unknown Source)
	at org.mockito.internal.util.MockUtil.typeMockabilityOf(MockUtil.java:29)
	at org.mockito.internal.util.MockCreationValidator.validateType(MockCreationValidator.java:22)
	at org.mockito.internal.creation.MockSettingsImpl.validatedSettings(MockSettingsImpl.java:168)
	at org.mockito.internal.creation.MockSettingsImpl.confirm(MockSettingsImpl.java:162)
	at org.mockito.internal.MockitoCore.mock(MockitoCore.java:64)
	at org.mockito.Mockito.mock(Mockito.java:1705)
	at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:33)
	at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:16)
	at org.mockito.internal.configuration.IndependentAnnotationEngine.createMockFor(IndependentAnnotationEngine.java:38)
	at org.mockito.internal.configuration.IndependentAnnotationEngine.process(IndependentAnnotationEngine.java:62)
	at org.mockito.internal.configuration.InjectingAnnotationEngine.processIndependentAnnotations(InjectingAnnotationEngine.java:57)
	at org.mockito.internal.configuration.InjectingAnnotationEngine.process(InjectingAnnotationEngine.java:41)
	at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:69)
	at {my_app}.BaseTestCase.setUp(BaseTestCase.kt:21)
	at {my_app}.PresenterTestCase.setUp(PresenterTestCase.kt:20)
	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.RunBefores.evaluate(RunBefores.java:24)
	at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:339)
	at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:259)
	at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:41)
	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.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:199)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runners.Suite.runChild(Suite.java:128)
	at org.junit.runners.Suite.runChild(Suite.java:27)
	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.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:119)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)
	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:144)
Caused by: java.lang.IllegalStateException: Failed to load interface org.mockito.plugins.MockMaker implementation declared in sun.misc.CompoundEnumeration@6f867b0c
	at org.mockito.internal.configuration.plugins.PluginLoader.loadImpl(PluginLoader.java:101)
	at org.mockito.internal.configuration.plugins.PluginLoader.loadPlugin(PluginLoader.java:45)
	at org.mockito.internal.configuration.plugins.PluginRegistry.<init>(PluginRegistry.java:18)
	at org.mockito.internal.configuration.plugins.Plugins.<clinit>(Plugins.java:17)
	at org.mockito.internal.configuration.GlobalConfiguration.tryGetPluginAnnotationEngine(GlobalConfiguration.java:55)
	at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:68)
	... 38 more
Caused by: org.mockito.exceptions.base.MockitoInitializationException: 
Could not initialize inline Byte Buddy mock maker. (This mock maker is not supported on Android.)

Java               : 1.8
JVM vendor name    : Oracle Corporation
JVM vendor version : 25.91-b15
JVM name           : Java HotSpot(TM) 64-Bit Server VM
JVM version        : 1.8.0_91-b15
JVM info           : mixed mode
OS name            : Windows 10
OS version         : 10.0

	at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.<init>(InlineByteBuddyMockMaker.java:172)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at java.lang.Class.newInstance(Class.java:442)
	at org.mockito.internal.configuration.plugins.PluginLoader.loadImpl(PluginLoader.java:96)
	... 43 more
Caused by: java.lang.IllegalStateException: 
Mockito failed to inject the MockMethodDispatcher class into the bootstrap class loader

It seems like your current VM does not support the instrumentation API correctly.
	at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.<clinit>(InlineByteBuddyMockMaker.java:146)
	... 49 more
Caused by: java.lang.ClassNotFoundException: org.mockito.internal.creation.bytebuddy.MockMethodDispatcher
	at org.robolectric.internal.bytecode.InstrumentingClassLoader.getByteCode(InstrumentingClassLoader.java:200)
	at org.robolectric.internal.bytecode.InstrumentingClassLoader.findClass(InstrumentingClassLoader.java:155)
	at org.robolectric.internal.bytecode.InstrumentingClassLoader.loadClass(InstrumentingClassLoader.java:122)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:264)
	at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.<clinit>(InlineByteBuddyMockMaker.java:138)
	... 49 more```
+5
paulblakely on Mar 2, 2017

any updates for this?

+3
mochadwi on May 15, 2020

I encountered this too today, when I was trying to add the MockMaker plugin to our project (to mock Kotlin classes, which are final by default). The error said it’s not supported on Android, while I’m testing locally on a normal JVM, similarly to the stack trace above.

It looks like it’s working after upgrading robolectric from 3.1.4 to latest release (3.3.2).

+3
quezak on Mar 29, 2017

I thought I was running a jdk when this issue happens to me but instead I was using a the jre.

Running the test using the jdk solved the problem for me.

+2
nicolasps on Dec 12, 2017

Nevermind - this was caused by using a hack for cleaning up inline mocks to prevent memory leaks. Removing that fixes the issue. Is this memory issue for inline mocking still a problem in newer versions of mockito/byte buddy? (#1614 )

+1
philbrown-mdt on Nov 21, 2019

solved by: https://stackoverflow.com/questions/49767683/what-does-no-compatible-attachment-provider-is-not-available-mean

+1
vpchelko on May 20, 2019
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