liuhaoXD commented on issue #4852:
URL: https://github.com/apache/skywalking/issues/4852#issuecomment-637389595
I tried to intercept the `java.util.concurrent.ThreadPoolExecutor` class
and got an exception:
```
ERROR 2020-06-02 15:13:36:543 main SkyWalkingAgent : Enhance class
java.util.concurrent.ThreadPoolExecutor error.
java.lang.IllegalStateException: Cannot inject auxiliary class into
bootstrap loader using reflection
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$InjectionStrategy$UsingReflection.resolve(AgentBuilder.java:3383)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$InitializationStrategy$SelfInjection$Split$Dispatcher.register(AgentBuilder.java:3195)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$Transformation$Simple$Resolution.apply(AgentBuilder.java:10124)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.doTransform(AgentBuilder.java:10494)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.transform(AgentBuilder.java:10457)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.access$1500(AgentBuilder.java:10223)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer$LegacyVmDispatcher.run(AgentBuilder.java:10833)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer$LegacyVmDispatcher.run(AgentBuilder.java:10780)
at java.security.AccessController.doPrivileged(Native Method)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.transform(AgentBuilder.java:10380)
at
sun.instrument.TransformerManager.transform(TransformerManager.java:188)
at
sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:428)
at sun.instrument.InstrumentationImpl.retransformClasses0(Native
Method)
at
sun.instrument.InstrumentationImpl.retransformClasses(InstrumentationImpl.java:144)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$RedefinitionStrategy$Dispatcher$ForJava6CapableVm.retransformClasses(AgentBuilder.java:6865)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$RedefinitionStrategy$Collector$ForRetransformation.doApply(AgentBuilder.java:7142)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$RedefinitionStrategy$Collector.apply(AgentBuilder.java:6991)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$RedefinitionStrategy.apply(AgentBuilder.java:4858)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default.installOn(AgentBuilder.java:9350)
at
org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default.installOn(AgentBuilder.java:9320)
at
org.apache.skywalking.apm.agent.SkyWalkingAgent.premain(SkyWalkingAgent.java:124)
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
sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:386)
at
sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:401)
```
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