我一直在使用PowerMock（1.7.1）和Mockito（2.8.9），并在模拟最终类时使用PowerMockRule遇到了问题。当我使用规则和普通的JUnit运行程序运行时，我得到以下异常：
Underlying exception : java.lang.IllegalArgumentException: Cannot subclass primitive, array or final types: class XXXX
at XXXX
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
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.powermock.modules.junit4.rule.PowerMockStatement.evaluate(PowerMockRule.java:73)
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$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$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: Cannot subclass primitive, array or final types: class com.gfigroup.ts.credit.data.market.Mifid2InterestUtils
at net.bytebuddy.ByteBuddy.subclass(ByteBuddy.java:370)
at net.bytebuddy.ByteBuddy.subclass(ByteBuddy.java:343)
at net.bytebuddy.ByteBuddy.subclass(ByteBuddy.java:240)
at org.mockito.internal.creation.bytebuddy.SubclassBytecodeGenerator.mockClass(SubclassBytecodeGenerator.java:66)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator$1.call(TypeCachingBytecodeGenerator.java:37)
at org.mockito.internal.creation.bytebuddy.TypeCachingBytecodeGenerator$1.call(TypeCachingBytecodeGenerator.java:34)
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:138)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:346)
at net.bytebuddy.TypeCache.findOrInsert(TypeCache.java:161)
at net.bytebuddy.TypeCache$WithInlineExpunction.findOrInsert(TypeCache.java:355)
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.powermock.api.mockito.mockmaker.PowerMockMaker.createMock(PowerMockMaker.java:50)
at org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator.createMethodInvocationControl(DefaultMockCreator.java:116)
at org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator.createMock(DefaultMockCreator.java:69)
at org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator.mock(DefaultMockCreator.java:46)
at org.powermock.api.mockito.PowerMockito.mockStatic(PowerMockito.java:73)
... 24 more
我在其他测试中使用该规则没有问题。我还尝试添加以下代码来引导代理，如果它没有根据PowerMock网站初始化，无济于事：
static {
PowerMockAgent.initializeIfNeeded();
}
当我切换到使用PowerMockRunner而不是规则时，问题就消失了。所以，我确实有针对这个特定测试的解决方法。我想知道是否有其他人遇到过这种情况并找到了使用该规则的方法。