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Posted to notifications@skywalking.apache.org by GitBox <gi...@apache.org> on 2021/09/28 04:06:21 UTC
[GitHub] [skywalking] wuguanyu opened a new issue #7824: [Bug] Hystrix plugins bug
wuguanyu opened a new issue #7824:
URL: https://github.com/apache/skywalking/issues/7824
### Search before asking
- [X] I had searched in the [issues](https://github.com/apache/skywalking/issues?q=is%3Aissue) and found no similar issues.
### Apache SkyWalking Component
Java Agent (apache/skywalking-java)
### What happened
```
java.lang.IllegalArgumentException: Cannot resolve ambiguous delegation of protected abstract java.lang.Object com.netflix.hystrix.HystrixCommand.run() throws java.lang.Exception to public java.lang.String java.lang.Object.toString() or public native int java.lang.Object.hashCode()
at org.apache.skywalking.apm.dependencies.net.bytebuddy.implementation.bind.MethodDelegationBinder$BindingResolver$Default.doResolve(MethodDelegationBinder.java:662)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.implementation.bind.MethodDelegationBinder$BindingResolver$Default.resolve(MethodDelegationBinder.java:611)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.implementation.bind.MethodDelegationBinder$Processor.bind(MethodDelegationBinder.java:1098)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.implementation.MethodDelegation$Appender.apply(MethodDelegation.java:1346)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.scaffold.TypeWriter$MethodPool$Record$ForDefinedMethod$WithBody.applyCode(TypeWriter.java:708)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.scaffold.TypeWriter$MethodPool$Record$ForDefinedMethod$WithBody.applyBody(TypeWriter.java:693)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.scaffold.TypeWriter$MethodPool$Record$ForDefinedMethod.apply(TypeWriter.java:600)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.scaffold.TypeWriter$Default$ForInlining$WithFullProcessing$RedefinitionClassVisitor.onVisitEnd(TypeWriter.java:5110)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.utility.visitor.MetadataAwareClassVisitor.visitEnd(MetadataAwareClassVisitor.java:370)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.jar.asm.ClassReader.accept(ClassReader.java:715)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.jar.asm.ClassReader.accept(ClassReader.java:394)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.scaffold.TypeWriter$Default$ForInlining.create(TypeWriter.java:3892)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.scaffold.TypeWriter$Default.make(TypeWriter.java:2166)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.dynamic.scaffold.inline.RebaseDynamicTypeBuilder.make(RebaseDynamicTypeBuilder.java:250)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.doTransform(AgentBuilder.java:10371)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.transform(AgentBuilder.java:10307)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.access$1600(AgentBuilder.java:10073)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer$Java9CapableVmDispatcher.run(AgentBuilder.java:10766)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer$Java9CapableVmDispatcher.run(AgentBuilder.java:10704)
at java.security.AccessController.doPrivileged(AccessController.java)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer.transform(AgentBuilder.java:10263)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$ExecutingTransformer$ByteBuddy$ModuleSupport.transform
at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:563)
at java.lang.ClassLoader.defineClass1(ClassLoader.java)
at java.lang.ClassLoader.defineClass(ClassLoader.java:1016)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:550)
at java.net.URLClassLoader$1.run(URLClassLoader.java:458)
at java.net.URLClassLoader$1.run(URLClassLoader.java:452)
at java.security.AccessController.doPrivileged(AccessController.java)
at java.net.URLClassLoader.findClass(URLClassLoader.java:451)
at java.lang.ClassLoader.loadClass(ClassLoader.java:588)
at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:93)
at java.lang.ClassLoader.loadClass(ClassLoader.java:521)
at java.lang.ClassLoader.defineClass1(ClassLoader.java)
at java.lang.ClassLoader.defineClass(ClassLoader.java:1016)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:550)
at java.net.URLClassLoader$1.run(URLClassLoader.java:458)
at java.net.URLClassLoader$1.run(URLClassLoader.java:452)
at java.security.AccessController.doPrivileged(AccessController.java)
at java.net.URLClassLoader.findClass(URLClassLoader.java:451)
at java.lang.ClassLoader.loadClass(ClassLoader.java:588)
at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:93)
at java.lang.ClassLoader.loadClass(ClassLoader.java:521)
```
### What you expected to happen
no exception
### How to reproduce
When i use the following java code,the exception occcured in bytebuddy
I extend HystrixCommand class and add new constructor in child class
```
public abstract class MyselfHystrixCommand extends HystrixCommand {
private final String myselfHystrixCommandCommandKey;
/**
*/
protected RedisHystrixCommand(String myselfHystrixCommandCommandKey) {
super(Setter.withGroupKey(HystrixCommandGroupKey.Factory.asKey("wuguanyu")));
this.redisCommandKey = redisCommandKey;
}
}
public class MyselfHystrixCommand2 extends MyselfHystrixCommand {
protected MyselfHystrixCommand2(String myselfHystrixCommandCommandKey) {
super(myselfHystrixCommandCommandKey);
}
@Override
protected Object run() throws Exception {
return null;
}
}
```
### Anything else
no
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
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[GitHub] [skywalking] wuguanyu commented on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wuguanyu commented on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928824063
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[GitHub] [skywalking] wuguanyu commented on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wuguanyu commented on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928842388
Our company developers extends HystrixCommand by themselves to resolve specially fallback logic
ok I need to see skywalking how to use byte buddy. In above exception stack info, I find some byte buddy source has skywalking prefix flag. just like
` at org.apache.skywalking.apm.dependencies.net.bytebuddy.implementation.bind.MethodDelegationBinder$BindingResolver$Default.doResolve(MethodDelegationBinder.java:662)`
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[GitHub] [skywalking] wu-sheng commented on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wu-sheng commented on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928878645
Sorry, private debug is out of community's hands.
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[GitHub] [skywalking] wuguanyu edited a comment on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wuguanyu edited a comment on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928859751
I wante to debug MethodDelegationBinder in target application,But finally I find could't debug in this line
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[GitHub] [skywalking] wuguanyu edited a comment on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wuguanyu edited a comment on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928859751
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[GitHub] [skywalking] wu-sheng commented on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wu-sheng commented on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928843502
All of them are shaded. Yes.
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[GitHub] [skywalking] wu-sheng commented on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wu-sheng commented on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928757857
We don't support private extension for now, I think.
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[GitHub] [skywalking] wu-sheng commented on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wu-sheng commented on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928757857
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[GitHub] [skywalking] wuguanyu removed a comment on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wuguanyu removed a comment on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928824063
> We don't support private extension for now, I think.
skwalking not support or byte-buddy-not support?
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[GitHub] [skywalking] wu-sheng commented on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wu-sheng commented on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928826948
It is about how to use byte buddy API in plugin. Your private codes are not expected by existing plugin codes, so exception shows up.
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[GitHub] [skywalking] wuguanyu commented on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wuguanyu commented on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928824228
> > We don't support private extension for now, I think.
>
> skywalking not support or byte-buddy-not support?
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[GitHub] [skywalking] wuguanyu removed a comment on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wuguanyu removed a comment on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928824063
> We don't support private extension for now, I think.
skwalking not support or byte-buddy-not support?
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[GitHub] [skywalking] wuguanyu commented on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wuguanyu commented on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928824063
> We don't support private extension for now, I think.
skwalking not support or byte-buddy-not support?
--
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[GitHub] [skywalking] wuguanyu commented on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wuguanyu commented on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928859751
I wanted debug MethodDelegationBinder in target application,But finally I find could't debug in this line
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[GitHub] [skywalking] wu-sheng closed issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wu-sheng closed issue #7824:
URL: https://github.com/apache/skywalking/issues/7824
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[GitHub] [skywalking] wuguanyu edited a comment on issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wuguanyu edited a comment on issue #7824:
URL: https://github.com/apache/skywalking/issues/7824#issuecomment-928859751
I wante to debug MethodDelegationBinder in target application,But finally I find could't debug in this line
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[GitHub] [skywalking] wu-sheng closed issue #7824: [Bug] Hystrix plugins bug
Posted by GitBox <gi...@apache.org>.
wu-sheng closed issue #7824:
URL: https://github.com/apache/skywalking/issues/7824
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