yulewei / javaagent-demo Goto Github PK

请问如何测试agentmain模式下的TimerAgent，能否私信给个微信请教一下？
我修改了一下TimerAgent，添加了agentmain，结果测试的时候报错：

Exception in thread "Attach Listener" java.lang.NoSuchMethodException: com.demo.TimerAgent.agentmain(java.lang.String, java.lang.instrument.Instrumentation)
at java.lang.Class.getDeclaredMethod(Class.java:2130)
at sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:327)
at sun.instrument.InstrumentationImpl.loadClassAndCallAgentmain(InstrumentationImpl.java:411)
Agent failed to start!
Exception in thread "main" java.lang.IllegalStateException: Error during attachment using: net.bytebuddy.agent.ByteBuddyAgent$AttachmentProvider$Compound@17a7cec2
at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:384)
at net.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:233)
at net.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:208)
at com.demo.AgentLoader2.main(AgentLoader2.java:30)
Caused by: java.lang.reflect.InvocationTargetException
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 net.bytebuddy.agent.Attacher.install(Attacher.java:88)
at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:379)
... 3 more
Caused by: com.sun.tools.attach.AgentInitializationException: Agent JAR loaded but agent failed to initialize
at sun.tools.attach.HotSpotVirtualMachine.loadAgent(HotSpotVirtualMachine.java:121)
... 9 more

依次运行 gradle runDemo2 和 gradle runAgentLoaderBuddy,运行gradle runAgentLoaderBuddy时报错：

Exception in thread "main" java.lang.IllegalStateException: Error during attachment using: net.bytebuddy.agent.ByteBuddyAgent$AttachmentProvider$Compound@4eec7777
at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:384)
at net.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:233)
at net.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:208)
at com.demo.AgentLoader2.main(AgentLoader2.java:29)
Caused by: java.lang.reflect.InvocationTargetException
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 net.bytebuddy.agent.Attacher.install(Attacher.java:88)
at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:379)
... 3 more
Caused by: com.sun.tools.attach.AgentLoadException: Agent JAR not found or no Agent-Class attribute
at sun.tools.attach.HotSpotVirtualMachine.loadAgent(HotSpotVirtualMachine.java:117)
... 9 more
Error opening zip file or JAR manifest missing: E:\Temp\javaagent-demo\proj-byte-buddy\target\libs\proj-byte-buddy.jar

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':proj-demo:runAgentLoaderBuddy'.

Process 'command 'C:\Program Files\Java\jdk1.8.0_211\bin\java.exe'' finished with non-zero exit value 1

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 1s
8 actionable tasks: 1 executed, 7 up-to-date

请问能否加你微信或者QQ请教（方便的话站内短信M我），我对ByteBuddy的文档不是很理解？谢谢