我试图在我的测试中使用Mock类并收到此错误：
org.mockito.exceptions.base.MockitoException:
Mockito cannot mock this class: class com.example.Car.
Mockito can only mock non-private & non-final classes.
If you're not sure why you're getting this error, please report to the mailing list.
Java : 1.8
JVM vendor name : Oracle Corporation
JVM vendor version : 25.161-b12
JVM name : Java HotSpot(TM) Client VM
JVM version : 1.8.0_161-b12
JVM info : mixed mode, sharing
OS name : Windows 10
OS version : 10.0
Underlying exception : java.lang.IllegalArgumentException: Could not create type
at org.mockito.internal.runners.DefaultInternalRunner$1$1.evaluate(DefaultInternalRunner.java:43)
at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
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.DefaultInternalRunner$1.run(DefaultInternalRunner.java:74)
at org.mockito.internal.runners.DefaultInternalRunner.run(DefaultInternalRunner.java:80)
at org.mockito.internal.runners.StrictRunner.run(StrictRunner.java:39)
at org.mockito.junit.MockitoJUnitRunner.run(MockitoJUnitRunner.java:163)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.IllegalArgumentException: Could not create type
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:139)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:344)
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:159)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:353)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator.mockClass(TypeCachingBytecodeGenerator.java:32)
at org.mockito.internal.creation.bytebuddy.SubclassByteBuddyMockMaker.createMockType(SubclassByteBuddyMockMaker.java:71)
at org.mockito.internal.creation.bytebuddy.SubclassByteBuddyMockMaker.createMock(SubclassByteBuddyMockMaker.java:42)
at org.mockito.internal.creation.bytebuddy.ByteBuddyMockMaker.createMock(ByteBuddyMockMaker.java:25)
at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:35)
at org.mockito.internal.MockitoCore.mock(MockitoCore.java:62)
at org.mockito.Mockito.mock(Mockito.java:1908)
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:49)
at org.mockito.internal.configuration.InjectingAnnotationEngine.process(InjectingAnnotationEngine.java:41)
at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:69)
... 21 more
Caused by: java.lang.NoSuchMethodError: net.bytebuddy.dynamic.loading.MultipleParentClassLoader$Builder.appendMostSpecific(Ljava/util/Collection;)Lnet/bytebuddy/dynamic/loading/MultipleParentClassLoader$Builder;
at org.mockito.internal.creation.bytebuddy.SubclassBytecodeGenerator.mockClass(SubclassBytecodeGenerator.java:83)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator$1.call(TypeCachingBytecodeGenerator.java:37)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator$1.call(TypeCachingBytecodeGenerator.java:34)
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:137)
... 39 more
在pom中：
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>2.28.2</version>
<scope>test</scope>
</dependency>
（（也尝试过3.0.0版）
Car类：
public class Car{
// Some properties. Non of them is final / static.
// constructor
}
Test类：
@RunWith(MockitoJUnitRunner.class)
public class ParkinglotTest{
@Mock
private Car car;
private Parkinglog parkinglot;
@Before
public void setUp(){
parkinglot = new Parkinglot(car);
}
....
答案 0 :(得分：3)
在我看来，这是因为它所指的是另一版本的 byte-buddy ，该版本实际上与嘲笑库不兼容。
字节伙伴的另一个版本，来自 hibernate-core （版本5.3.7），也存在于我的类路径中。
最初，我使用的是模仿核心库版本3.3.3，实际上它需要字节伙伴1.10.5。
因此，我将模仿内核库降级为使用字节伙伴版本1.8.15的2.21.0版本。
对我来说，它开始工作正常。
对我来说，另一种解决方案是将其更新为较新版本的hibernate（版本> = 5.4.11.Final），其中包括与Mockito库兼容的字节伙伴版本。
但这可能会对项目产生更大的影响，因此我根据所使用的库选择了以下第一个解决方案：
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-junit-jupiter</artifactId>
<version>2.21.0</version>
<scope>test</scope>
</dependency>
OR
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>2.21.0</version>
<scope>test</scope>
</dependency>
此外，此问题已在此处解决：https://github.com/mockito/mockito/issues/1606帮助我找到了解决方案。
答案 1 :(得分：1)
降级了Mockito版本后，我得以解决此问题：
<version>2.13.0</version>
答案 2 :(得分：0)
看来这可能是由于找不到安装的字节码引起的，指的是：
原因：java.lang.NoSuchMethodError：net.bytebuddy.dynamic.loading.MultipleParentClassLoader $ Builder.appendMostSpecific（Ljava / util / Collection;）Lnet / bytebuddy / dynamic / loading / MultipleParentClassLoader $ Builder;
根据我的在线发现，在您的依赖项中添加字节码可能会解决此问题。
<dependency>
<groupId>net.bytebuddy</groupId>
<artifactId>byte-buddy</artifactId>
<version>XXX</version>
</dependency>