8
我得到的堆栈跟踪是这样的：什么是GeneratedMethodAccessor1,2等，为什么他们不能找到？
java.lang.NoClassDefFoundError: sun/reflect/GeneratedMethodAccessor1
at sun.reflect.GeneratedMethodAccessor1.<clinit>(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at sun.reflect.MethodAccessorGenerator$1.run(MethodAccessorGenerator.java:381)
at java.security.AccessController.doPrivileged(Native Method)
at sun.reflect.MethodAccessorGenerator.generate(MethodAccessorGenerator.java:377)
at sun.reflect.MethodAccessorGenerator.generateMethod(MethodAccessorGenerator.java:59)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:28)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at edu.tufts.cs.testsim.LogicalProcess.dispatchMessage(LogicalProcess.java:214)
at edu.tufts.cs.testsim.LogicalProcess.processForward(LogicalProcess.java:287)
at edu.tufts.cs.testsim.LogicalProcess.doOperation(LogicalProcess.java:423)
at edu.tufts.cs.testsim.LogicalProcess.run(LogicalProcess.java:434)
at java.lang.Thread.run(Thread.java:637)
Caused by: java.lang.ClassNotFoundException: sun.reflect.GeneratedMethodAccessor1
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:316)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:288)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
... 19 more
什么GeneratedMethodAccessor1，GeneratedMethodAccessor2，GeneratedMethodAccessorN和什么可能导致他们不会被发现？我在运行时正在做一些字节码重写，但只在类被加载之前，通过反射的前几个调用工作正常。我想知道是否在JIT编译器获得我的代码之后发生这种情况，但我甚至没有很好的关于如何开始调试的想法。