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Posted to notifications@skywalking.apache.org by GitBox <gi...@apache.org> on 2020/02/12 02:02:14 UTC
[GitHub] [skywalking] dengliming opened a new issue #4351: Byte-buddy occurs
exception when match type.
dengliming opened a new issue #4351: Byte-buddy occurs exception when match type.
URL: https://github.com/apache/skywalking/issues/4351
Please answer these questions before submitting your issue.
- Why do you submit this issue?
- [ ] Question or discussion
- [ ] Bug
- [ ] Requirement
- [ ] Feature or performance improvement
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### Question
- What do you want to know?
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### Bug
- Which version of SkyWalking, OS and JRE?
6.6.0
- Which company or project?
- What happen?
WARN 2020-02-12 09:56:27:497 main ProtectiveShieldMatcher : Byte-buddy occurs exception when match type.
java.lang.NoClassDefFoundError: org/apache/commons/csv/CSVFormat
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
at java.lang.Class.getDeclaredConstructors(Class.java:2020)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.description.method.MethodList$ForLoadedMethods.<init>(MethodList.java:109)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.description.type.TypeDescription$ForLoadedType.getDeclaredMethods(TypeDescription.java:8433)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.matcher.DeclaringMethodMatcher.matches(DeclaringMethodMatcher.java:49)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.matcher.DeclaringMethodMatcher.matches(DeclaringMethodMatcher.java:28)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.matcher.ElementMatcher$Junction$Conjunction.matches(ElementMatcher.java:122)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.matcher.ElementMatcher$Junction$Disjunction.matches(ElementMatcher.java:160)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.matcher.ElementMatcher$Junction$Disjunction.matches(ElementMatcher.java:160)
at org.apache.skywalking.apm.agent.core.plugin.match.ProtectiveShieldMatcher.matches(ProtectiveShieldMatcher.java:47)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$RawMatcher$ForElementMatchers.matches(AgentBuilder.java:1275)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$Transformation$Simple.matches(AgentBuilder.java:9974)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default$Transformation$Compound.matches(AgentBuilder.java:10176)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$RedefinitionStrategy$Collector.consider(AgentBuilder.java:6943)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$RedefinitionStrategy.apply(AgentBuilder.java:4826)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default.installOn(AgentBuilder.java:9350)
at org.apache.skywalking.apm.dependencies.net.bytebuddy.agent.builder.AgentBuilder$Default.installOn(AgentBuilder.java:9320)
at org.apache.skywalking.apm.agent.SkyWalkingAgent.premain(SkyWalkingAgent.java:121)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:386)
at sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:401)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.csv.CSVFormat
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 25 more
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### Requirement or improvement
- Please describe about your requirements or improvement suggestions.
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[GitHub] [skywalking] wu-sheng closed issue #4351: Byte-buddy occurs
exception when match type.
Posted by GitBox <gi...@apache.org>.
wu-sheng closed issue #4351: Byte-buddy occurs exception when match type.
URL: https://github.com/apache/skywalking/issues/4351
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[GitHub] [skywalking] wu-sheng commented on issue #4351: Byte-buddy occurs
exception when match type.
Posted by GitBox <gi...@apache.org>.
wu-sheng commented on issue #4351: Byte-buddy occurs exception when match type.
URL: https://github.com/apache/skywalking/issues/4351#issuecomment-584993480
If `org.apache.commons.csv.CSVFormat` can't be found by ByteBuddy in the classpath, then this error shows up. But basically, this is a warning. Unless you want to instrument this type, this is not an issue.
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