Java 使用Bytebuddy远程连接代理
我正在尝试为使用bytebuddy的进程附加代理。我发现我们可以使用ByteBuddyAgent;为了这个。但当我尝试这样做时,会出现以下错误 这是我用过的探员 File File=new FileAgent.jar 错误 我得到了这个错误 错误Java 使用Bytebuddy远程连接代理,java,performance,byte-buddy,Java,Performance,Byte Buddy,我正在尝试为使用bytebuddy的进程附加代理。我发现我们可以使用ByteBuddyAgent;为了这个。但当我尝试这样做时,会出现以下错误 这是我用过的探员 File File=new FileAgent.jar 错误 我得到了这个错误 错误 有什么建议吗 至于第一条错误消息:目标VM是否运行附件侦听器?您可以尝试通过设置-XX:+StartAttachListener强制启动线程,默认情况下应设置该选项。您正在运行哪个JVM版本 另一条错误消息表示附件库已由另一个类加载器加载。有关更多详细
有什么建议吗 至于第一条错误消息:目标VM是否运行附件侦听器?您可以尝试通过设置-XX:+StartAttachListener强制启动线程,默认情况下应设置该选项。您正在运行哪个JVM版本 另一条错误消息表示附件库已由另一个类加载器加载。有关更多详细信息,请参阅此答案:
java.lang.IllegalStateException: Error during attachment using: net.bytebuddy.agent.ByteBuddyAgent$AttachmentProvider$Compound@e26db604
at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:378)
at net.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:227)
at net.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:202)
at net.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:189)
at common.netty.echo.EchoHttpServer.main(EchoHttpServer.java:95)
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:77)
at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:373)
... 4 more
Caused by: com.sun.tools.attach.AttachNotSupportedException: Unable to open socket file: target process not responding or HotSpot VM not loaded
at sun.tools.attach.LinuxVirtualMachine.<init>(LinuxVirtualMachine.java:106)
at sun.tools.attach.LinuxAttachProvider.attachVirtualMachine(LinuxAttachProvider.java:63)
at com.sun.tools.attach.VirtualMachine.attach(VirtualMachine.java:208)
... 10 more
public class Agent {
public static void premain(String args, Instrumentation instrumentation) {
System.out.println("Premain");
File file ;
try {
file = (new File("Agent.jar"));
ByteBuddyAgent.attach(file,"18467");
}
catch (Exception e)
{
e.printStackTrace();
}
}
java.lang.IllegalStateException: Error during attachment using: net.bytebuddy.agent.ByteBuddyAgent$AttachmentProvider$Compound@423f0955
at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:378)
at net.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:227)
at net.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:202)
at net.bytebuddy.agent.ByteBuddyAgent.attach(ByteBuddyAgent.java:189)
at common.netty.echo.Agent.premain(Agent.java:111)
at common.netty.echo.EchoHttpServer.<clinit>(EchoHttpServer.java:56)
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:77)
at net.bytebuddy.agent.ByteBuddyAgent.install(ByteBuddyAgent.java:373)
... 5 more
Caused by: java.lang.UnsatisfiedLinkError: Native Library /usr/lib/jvm/java-8-oracle/jre/lib/amd64/libattach.so already loaded in another classloader
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1907)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1845)
at java.lang.Runtime.loadLibrary0(Runtime.java:870)
at java.lang.System.loadLibrary(System.java:1122)
at sun.tools.attach.LinuxVirtualMachine.<clinit>(LinuxVirtualMachine.java:342)
at sun.tools.attach.LinuxAttachProvider.attachVirtualMachine(LinuxAttachProvider.java:63)
at com.sun.tools.attach.VirtualMachine.attach(VirtualMachine.java:208)
... 11 more