About Java.lang.reflect.InvocationTargetException

Today encountered java.lang.reflect.InvocationTargetException error, card for a good while, error code

　　

 try   {Class  <?> c= class.f             ORName ("Com.csdhsm.chat.server.handler." + HandlerName); Class  <?>[] arg=new  class[]{socketrequest., Socketresponse. class              };            Method  =c.getmethod (Action,arg); Logger.getlogger (Logger.  class ).            Info ("instanced processor" + HandlerName); Method.invoke (C.newinstance (),  new           Object[]{request,response});  catch   (Exception e) {E.printstack         Trace (); } 

Error locked in Method.invoke (C.newinstance (), New Object[]{request,response}); This sentence, I always thought reflected what was wrong, and then Google later found that the method is a mistake, if you want to see the error inside, need to do

Try{Method Method=Obj.getclass (). GetMethod (MethodName);        Method.invoke (obj); } Catch(nosuchmethodexception e) {Throw NewRequestnotfoundexception ("Method not found:" +MethodName, E); } Catch(InvocationTargetException e) {throwable T=E.getcause ();            T.printstacktrace (); Throw Newobjectfactoryexception (t); } Catch(Exception e) {e.printstacktrace (); Throw Newobjectfactoryexception (e); }

emphasis on throwable t = E.getcause (); This sentence.

Reference link http://www.oschina.net/question/86510_14830

About Java.lang.reflect.InvocationTargetException