我们正在开发依赖于外部jar的Java App的单元测试。我们使用JMockit，单元测试可以成功运行。然后我们启用JMockit代码覆盖。然后Jmockit代码覆盖代码以某种方式调用外部jar中的类的静态初始化代码。由于该类不应该在测试环境中运行，因此会导致异常。注意 1.如果未启用代码覆盖，则单元测试可以成功运行 2.堆栈跟踪显示我们正在测试的类，它来自JMockit代码（mockit.coverage.CodeCoverage.transform）到第三方类的静态初始化。 3.这是jar中的外部类，jmockit不应该根据文档对它进行代码覆盖，对吧？ mockit.coverage.modification.ClassModification.modifyClassForCoverage是否意味着检测代码？ 我们试过-Djmockit-codecoverage-排除标志，但没有帮助。
这是JMockit代码覆盖的错误吗？
================堆栈错误的痕迹=========================== =
at THE_THIRD_PARTY_EXTERNAL_CLASS.<clinit>(THE_THIRD_PARTY_EXTERNAL_CLASS.java:line_number)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at mockit.internal.util.ClassLoad.loadClass(ClassLoad.java:102)
at mockit.internal.util.ClassLoad.loadClass(ClassLoad.java:54)
at mockit.internal.util.ClassLoad.loadByInternalName(ClassLoad.java:31)
at mockit.internal.util.ClassLoad.getSuperClass(ClassLoad.java:146)
at mockit.internal.util.ClassLoad.actualSuperClass(ClassLoad.java:177)
at mockit.internal.util.ClassLoad.whichIsSuperClass(ClassLoad.java:167)
at mockit.external.asm.ClassWriter.getCommonSuperClass(ClassWriter.java:1694)
at mockit.external.asm.ClassWriter.getMergedType(ClassWriter.java:1661)
at mockit.external.asm.Frame.merge(Frame.java:1426)
at mockit.external.asm.Frame.merge(Frame.java:1325)
at mockit.external.asm.MethodWriter.visitMaxs(MethodWriter.java:1475)
at mockit.external.asm.MethodVisitor.visitMaxs(MethodVisitor.java:804)
at mockit.external.asm.ClassReader.readCode(ClassReader.java:1554)
at mockit.external.asm.ClassReader.readMethod(ClassReader.java:1017)
at mockit.external.asm.ClassReader.accept(ClassReader.java:693)
at mockit.external.asm.ClassReader.accept(ClassReader.java:506)
at mockit.coverage.modification.ClassModification.modifyClassForCoverage(ClassModification.java:142)
at mockit.coverage.modification.ClassModification.modifyClassForCoverage(ClassModification.java:217)
at mockit.coverage.modification.ClassModification.modifyClass(ClassModification.java:192)
at mockit.coverage.CodeCoverage.transform(CodeCoverage.java:127)
at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:424)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2442)
at java.lang.Class.getDeclaredMethods(Class.java:1808)
at org.junit.runners.model.TestClass.<init>(TestClass.java:38)
at org.junit.runners.ParentRunner.<init>(ParentRunner.java:65)
at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:59)
at mockit.integration.junit4.JMockit.<init>(JMockit.java:30)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:31)
at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:24)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)
at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:29)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)
at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:24)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.<init>(JUnit4TestReference.java:33)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestClassReference.<init>(JUnit4TestClassReference.java:25)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:48)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:452)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)