在项目中使用 mockito-inline 会引发 "Mockito cannot mock this class" 错误
Using mockito-inline in project throws "Mockito cannot mock this class" Error
我在我的项目中使用 Mockito 2.23.4 和 byte-buddy 1.9.3。我想模拟 final 类 和方法，所以我在这个 post Mockito mock final classes and methods 之后使用了 mockito-inline 并在项目 [=15] 的 org.mockito.plugins.MockMaker 文件中设置 mock-maker-inline =] 目录。
我也跟进了 post Mockito fails with inlined mocks enabled with Invalid paramter name exception 但问题仍然存在。
但是当我 运行 测试时，我得到了下面的堆栈跟踪。
Java HotSpot(TM) 64-Bit Server VM warning: Sharing is only supported for boot loader classes because bootstrap classpath has been appended
Test ignored.
org.mockito.exceptions.base.MockitoException:
Mockito cannot mock this class: class org.elasticsearch.client.RestHighLevelClient.
If you're not sure why you're getting this error, please report to the mailing list.
Java : 15
JVM vendor name : Oracle Corporation
JVM vendor version : 15.0.2+7-27
JVM name : Java HotSpot(TM) 64-Bit Server VM
JVM version : 15.0.2+7-27
JVM info : mixed mode, sharing
OS name : Windows 10
OS version : 10.0
You are seeing this disclaimer because Mockito is configured to create inlined mocks.
You can learn about inline mocks and their limitations under item #39 of the Mockito class javadoc.
Underlying exception : org.mockito.exceptions.base.MockitoException: Could not modify all classes [class org.elasticsearch.client.RestHighLevelClient, class java.lang.Object, interface java.io.Closeable, interface java.lang.AutoCloseable]
at org.mockito.internal.runners.DefaultInternalRunner.withBefores(DefaultInternalRunner.java:39)
at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:276)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access[=11=]0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:79)
at org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:85)
at org.mockito.internal.runners.StrictRunner.run(StrictRunner.java:39)
at org.mockito.junit.MockitoJUnitRunner.run(MockitoJUnitRunner.java:163)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
Caused by: org.mockito.exceptions.base.MockitoException: Could not modify all classes [class org.elasticsearch.client.RestHighLevelClient, class java.lang.Object, interface java.io.Closeable, interface java.lang.AutoCloseable]
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:152)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:365)
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:174)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:376)
... 19 more
Caused by: java.lang.IllegalStateException:
Byte Buddy could not instrument all classes within the mock's type hierarchy
This problem should never occur for javac-compiled classes. This problem has been observed for classes that are:
- Compiled by older versions of scalac
- Classes that are part of the Android distribution
at org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator.triggerRetransformation(InlineBytecodeGenerator.java:164)
at org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator.mockClass(InlineBytecodeGenerator.java:141)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator.call(TypeCachingBytecodeGenerator.java:37)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator.call(TypeCachingBytecodeGenerator.java:34)
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:152)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:365)
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:174)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:376)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator.mockClass(TypeCachingBytecodeGenerator.java:32)
at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.createMockType(InlineByteBuddyMockMaker.java:200)
at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.createMock(InlineByteBuddyMockMaker.java:181)
at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:35)
at org.mockito.internal.MockitoCore.mock(MockitoCore.java:69)
at org.mockito.Mockito.mock(Mockito.java:1896)
at org.mockito.internal.configuration.MockAnnotationProcessor.processAnnotationForMock(MockAnnotationProcessor.java:44)
at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:19)
at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:16)
at org.mockito.internal.configuration.IndependentAnnotationEngine.createMockFor(IndependentAnnotationEngine.java:38)
at org.mockito.internal.configuration.IndependentAnnotationEngine.process(IndependentAnnotationEngine.java:62)
at org.mockito.internal.configuration.InjectingAnnotationEngine.processIndependentAnnotations(InjectingAnnotationEngine.java:57)
at org.mockito.internal.configuration.InjectingAnnotationEngine.process(InjectingAnnotationEngine.java:41)
at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:69)
... 19 more
Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 59
at net.bytebuddy.jar.asm.ClassReader.<init>(ClassReader.java:184)
at net.bytebuddy.jar.asm.ClassReader.<init>(ClassReader.java:166)
at net.bytebuddy.jar.asm.ClassReader.<init>(ClassReader.java:152)
at net.bytebuddy.utility.OpenedClassReader.of(OpenedClassReader.java:82)
at net.bytebuddy.dynamic.scaffold.TypeWriter$Default$ForInlining.create(TypeWriter.java:3390)
at net.bytebuddy.dynamic.scaffold.TypeWriter$Default.make(TypeWriter.java:1930)
at net.bytebuddy.dynamic.scaffold.inline.RedefinitionDynamicTypeBuilder.make(RedefinitionDynamicTypeBuilder.java:207)
at net.bytebuddy.dynamic.scaffold.inline.AbstractInliningDynamicTypeBuilder.make(AbstractInliningDynamicTypeBuilder.java:116)
at net.bytebuddy.dynamic.DynamicType$Builder$AbstractBase.make(DynamicType.java:3394)
at org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator.transform(InlineBytecodeGenerator.java:215)
at java.instrument/java.lang.instrument.ClassFileTransformer.transform(ClassFileTransformer.java:246)
at java.instrument/sun.instrument.TransformerManager.transform(TransformerManager.java:188)
at java.instrument/sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:563)
at java.instrument/sun.instrument.InstrumentationImpl.retransformClasses0(Native Method)
at java.instrument/sun.instrument.InstrumentationImpl.retransformClasses(InstrumentationImpl.java:167)
at org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator.triggerRetransformation(InlineBytecodeGenerator.java:161)
... 40 more
我尝试按照 post mockito fails with inlined mocks 中提到的 byte-buddy 的依赖项设置进行操作：
<dependency>
<groupId>net.bytebuddy</groupId>
<artifactId>byte-buddy</artifactId>
<version>LATEST</version>
</dependency>
但仍然没有成功解决 error.My 测试代码和实际方法在我的 post 之前提到：Getting NPE error when trying to mock ElasticClient in Mockito [重复]
接下来我可以尝试什么？
您需要更新依赖项。
您正在使用 jdk15 编译您的项目。
Bytebuddy 抱怨它无法检测由此 jdk 生成的 class 文件（不支持 class 文件主要版本 59）
中引入了对 java 15 的支持
请注意，您不需要在项目中指定 ByteBuddy 的版本，因为 Mockito 会传递它（除非您有充分的理由强制使用一个版本）。
Mockito 3.3.10 中引入了兼容的 ByteBuddy 版本。参见 commit changing ByteBuddy version to 1.10.10
与其分析 Mockito 中的提交历史，我建议使用最新和最好的（撰写本文时为 3.8.0）
我在我的项目中使用 Mockito 2.23.4 和 byte-buddy 1.9.3。我想模拟 final 类 和方法，所以我在这个 post Mockito mock final classes and methods 之后使用了 mockito-inline 并在项目 [=15] 的 org.mockito.plugins.MockMaker 文件中设置 mock-maker-inline =] 目录。
我也跟进了 post Mockito fails with inlined mocks enabled with Invalid paramter name exception 但问题仍然存在。
但是当我 运行 测试时，我得到了下面的堆栈跟踪。
Java HotSpot(TM) 64-Bit Server VM warning: Sharing is only supported for boot loader classes because bootstrap classpath has been appended
Test ignored.
org.mockito.exceptions.base.MockitoException:
Mockito cannot mock this class: class org.elasticsearch.client.RestHighLevelClient.
If you're not sure why you're getting this error, please report to the mailing list.
Java : 15
JVM vendor name : Oracle Corporation
JVM vendor version : 15.0.2+7-27
JVM name : Java HotSpot(TM) 64-Bit Server VM
JVM version : 15.0.2+7-27
JVM info : mixed mode, sharing
OS name : Windows 10
OS version : 10.0
You are seeing this disclaimer because Mockito is configured to create inlined mocks.
You can learn about inline mocks and their limitations under item #39 of the Mockito class javadoc.
Underlying exception : org.mockito.exceptions.base.MockitoException: Could not modify all classes [class org.elasticsearch.client.RestHighLevelClient, class java.lang.Object, interface java.io.Closeable, interface java.lang.AutoCloseable]
at org.mockito.internal.runners.DefaultInternalRunner.withBefores(DefaultInternalRunner.java:39)
at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:276)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access[=11=]0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:79)
at org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:85)
at org.mockito.internal.runners.StrictRunner.run(StrictRunner.java:39)
at org.mockito.junit.MockitoJUnitRunner.run(MockitoJUnitRunner.java:163)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
Caused by: org.mockito.exceptions.base.MockitoException: Could not modify all classes [class org.elasticsearch.client.RestHighLevelClient, class java.lang.Object, interface java.io.Closeable, interface java.lang.AutoCloseable]
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:152)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:365)
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:174)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:376)
... 19 more
Caused by: java.lang.IllegalStateException:
Byte Buddy could not instrument all classes within the mock's type hierarchy
This problem should never occur for javac-compiled classes. This problem has been observed for classes that are:
- Compiled by older versions of scalac
- Classes that are part of the Android distribution
at org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator.triggerRetransformation(InlineBytecodeGenerator.java:164)
at org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator.mockClass(InlineBytecodeGenerator.java:141)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator.call(TypeCachingBytecodeGenerator.java:37)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator.call(TypeCachingBytecodeGenerator.java:34)
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:152)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:365)
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:174)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:376)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator.mockClass(TypeCachingBytecodeGenerator.java:32)
at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.createMockType(InlineByteBuddyMockMaker.java:200)
at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.createMock(InlineByteBuddyMockMaker.java:181)
at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:35)
at org.mockito.internal.MockitoCore.mock(MockitoCore.java:69)
at org.mockito.Mockito.mock(Mockito.java:1896)
at org.mockito.internal.configuration.MockAnnotationProcessor.processAnnotationForMock(MockAnnotationProcessor.java:44)
at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:19)
at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:16)
at org.mockito.internal.configuration.IndependentAnnotationEngine.createMockFor(IndependentAnnotationEngine.java:38)
at org.mockito.internal.configuration.IndependentAnnotationEngine.process(IndependentAnnotationEngine.java:62)
at org.mockito.internal.configuration.InjectingAnnotationEngine.processIndependentAnnotations(InjectingAnnotationEngine.java:57)
at org.mockito.internal.configuration.InjectingAnnotationEngine.process(InjectingAnnotationEngine.java:41)
at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:69)
... 19 more
Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 59
at net.bytebuddy.jar.asm.ClassReader.<init>(ClassReader.java:184)
at net.bytebuddy.jar.asm.ClassReader.<init>(ClassReader.java:166)
at net.bytebuddy.jar.asm.ClassReader.<init>(ClassReader.java:152)
at net.bytebuddy.utility.OpenedClassReader.of(OpenedClassReader.java:82)
at net.bytebuddy.dynamic.scaffold.TypeWriter$Default$ForInlining.create(TypeWriter.java:3390)
at net.bytebuddy.dynamic.scaffold.TypeWriter$Default.make(TypeWriter.java:1930)
at net.bytebuddy.dynamic.scaffold.inline.RedefinitionDynamicTypeBuilder.make(RedefinitionDynamicTypeBuilder.java:207)
at net.bytebuddy.dynamic.scaffold.inline.AbstractInliningDynamicTypeBuilder.make(AbstractInliningDynamicTypeBuilder.java:116)
at net.bytebuddy.dynamic.DynamicType$Builder$AbstractBase.make(DynamicType.java:3394)
at org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator.transform(InlineBytecodeGenerator.java:215)
at java.instrument/java.lang.instrument.ClassFileTransformer.transform(ClassFileTransformer.java:246)
at java.instrument/sun.instrument.TransformerManager.transform(TransformerManager.java:188)
at java.instrument/sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:563)
at java.instrument/sun.instrument.InstrumentationImpl.retransformClasses0(Native Method)
at java.instrument/sun.instrument.InstrumentationImpl.retransformClasses(InstrumentationImpl.java:167)
at org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator.triggerRetransformation(InlineBytecodeGenerator.java:161)
... 40 more
我尝试按照 post mockito fails with inlined mocks 中提到的 byte-buddy 的依赖项设置进行操作：
<dependency>
<groupId>net.bytebuddy</groupId>
<artifactId>byte-buddy</artifactId>
<version>LATEST</version>
</dependency>
但仍然没有成功解决 error.My 测试代码和实际方法在我的 post 之前提到：Getting NPE error when trying to mock ElasticClient in Mockito [重复]
接下来我可以尝试什么？
您需要更新依赖项。
您正在使用 jdk15 编译您的项目。 Bytebuddy 抱怨它无法检测由此 jdk 生成的 class 文件（不支持 class 文件主要版本 59）
中引入了对 java 15 的支持请注意，您不需要在项目中指定 ByteBuddy 的版本，因为 Mockito 会传递它（除非您有充分的理由强制使用一个版本）。
Mockito 3.3.10 中引入了兼容的 ByteBuddy 版本。参见 commit changing ByteBuddy version to 1.10.10
与其分析 Mockito 中的提交历史，我建议使用最新和最好的（撰写本文时为 3.8.0）