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Inconsistent frame length error

See original GitHub issue

I ran into an odd java.lang.IllegalStateException: Inconsistent frame length issue when writing a test for a transformation I was doing. I can’t quite understand it, but I tried to consolidate it as much as I could.

You can see the test here: https://github.com/DataDog/dd-trace-java/blob/tyler/broken/broken/src/test/groovy/BrokenTest.groovy When I run it in IntelliJ, it passes, but running via gradle the test fails due to not instrumenting caused by the following stacktrace:

java.lang.IllegalStateException: Inconsistent frame length for public java.lang.String BrokenClass.someMethod(java.lang.String): 0
	at net.bytebuddy.asm.Advice$StackMapFrameHandler$Default.translateFrame(Advice.java:4062)
	at net.bytebuddy.asm.Advice$StackMapFrameHandler$Default.translateFrame(Advice.java:4016)
	at net.bytebuddy.asm.Advice$AdviceVisitor.visitFrame(Advice.java:7309)
	at net.bytebuddy.jar.asm.ClassReader.readCode(ClassReader.java:1440)
	at net.bytebuddy.jar.asm.ClassReader.readMethod(ClassReader.java:1126)
	at net.bytebuddy.jar.asm.ClassReader.accept(ClassReader.java:698)
	at net.bytebuddy.jar.asm.ClassReader.accept(ClassReader.java:500)
	at net.bytebuddy.dynamic.scaffold.TypeWriter$Default$ForInlining.create(TypeWriter.java:2941)
	at net.bytebuddy.dynamic.scaffold.TypeWriter$Default.make(TypeWriter.java:1633)
	at net.bytebuddy.dynamic.scaffold.inline.RedefinitionDynamicTypeBuilder.make(RedefinitionDynamicTypeBuilder.java:171)
	at net.bytebuddy.agent.builder.AgentBuilder$Default$Transformation$Simple$Resolution.apply(AgentBuilder.java:8905)
	at net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.doTransform(AgentBuilder.java:9306)
	at net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.transform(AgentBuilder.java:9269)
	at net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.access$1300(AgentBuilder.java:9047)
	at net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer$LegacyVmDispatcher.run(AgentBuilder.java:9625)
	at net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer$LegacyVmDispatcher.run(AgentBuilder.java:9575)
	at java.security.AccessController.doPrivileged(Native Method)
	at net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.transform(AgentBuilder.java:9194)
	at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
	at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:428)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at BrokenTest.$spock_feature_0_0(BrokenTest.groovy:63)
	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.spockframework.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:188)
	at org.spockframework.runtime.model.MethodInfo.invoke(MethodInfo.java:84)
	at org.spockframework.runtime.BaseSpecRunner.invokeRaw(BaseSpecRunner.java:481)
	at org.spockframework.runtime.BaseSpecRunner.invoke(BaseSpecRunner.java:464)
	at org.spockframework.runtime.BaseSpecRunner.runFeatureMethod(BaseSpecRunner.java:406)
	at org.spockframework.runtime.BaseSpecRunner.doRunIteration(BaseSpecRunner.java:324)
	at org.spockframework.runtime.BaseSpecRunner$6.invoke(BaseSpecRunner.java:309)
	at org.spockframework.runtime.BaseSpecRunner.invokeRaw(BaseSpecRunner.java:481)
	at org.spockframework.runtime.BaseSpecRunner.invoke(BaseSpecRunner.java:464)
	at org.spockframework.runtime.BaseSpecRunner.runIteration(BaseSpecRunner.java:288)
	at org.spockframework.runtime.BaseSpecRunner.initializeAndRunIteration(BaseSpecRunner.java:278)
	at org.spockframework.runtime.BaseSpecRunner.runSimpleFeature(BaseSpecRunner.java:269)
	at org.spockframework.runtime.BaseSpecRunner.doRunFeature(BaseSpecRunner.java:263)
	at org.spockframework.runtime.BaseSpecRunner$5.invoke(BaseSpecRunner.java:246)
	at org.spockframework.runtime.BaseSpecRunner.invokeRaw(BaseSpecRunner.java:481)
	at org.spockframework.runtime.BaseSpecRunner.invoke(BaseSpecRunner.java:464)
	at org.spockframework.runtime.BaseSpecRunner.runFeature(BaseSpecRunner.java:238)
	at org.spockframework.runtime.BaseSpecRunner.runFeatures(BaseSpecRunner.java:188)
	at org.spockframework.runtime.BaseSpecRunner.doRunSpec(BaseSpecRunner.java:98)
	at org.spockframework.runtime.BaseSpecRunner$1.invoke(BaseSpecRunner.java:84)
	at org.spockframework.runtime.BaseSpecRunner.invokeRaw(BaseSpecRunner.java:481)
	at org.spockframework.runtime.BaseSpecRunner.invoke(BaseSpecRunner.java:464)
	at org.spockframework.runtime.BaseSpecRunner.runSpec(BaseSpecRunner.java:76)
	at org.spockframework.runtime.BaseSpecRunner.run(BaseSpecRunner.java:67)
	at org.spockframework.runtime.Sputnik.run(Sputnik.java:63)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:114)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:57)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:66)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:51)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy1.processTestClass(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:109)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:146)
	at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:128)
	at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
	at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:46)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
	at java.lang.Thread.run(Thread.java:748)

Any idea what is causing this instrumentation error? I’m running it on jdk1.8.0_131 on a Mac if that makes a difference. Let me know if you need any further details.

Thanks!