printing - How can I print parameters's values of different methods with java asm? -

so want print parameters's values of different methods.

for example if method is

void print(string string,int number) {   system.out.println(number +" " + string); } 

i want able like

   void print(string string,int number)     {       mylogger.log(methodname,string,number);       system.out.println(number +" " + string);     } 

so pass parameters of class own logger can print them out. don't know how transfer bytecode (asm).

so far have managed print method's name code: (classdata class contains methods in classes should hook into)

public class mytransformer implements classfiletransformer { @override public byte[] transform(classloader classloader, string s, class<?> aclass, protectiondomain protectiondomain, byte[] bytes) throws illegalclassformatexception {     for(classdata classdata : myagent.classes)     {         string classname = classdata.classname;         if (classname.equals(s)) {             classreader cr=new classreader(bytes);             classnode cn=new classnode();             cr.accept(cn,classreader.expand_frames);             (object o : cn.methods.toarray()) {                 methodnode m = (methodnode) o;                 for(string method : classdata.methods)                 {                     if(method.equals(m.name)) {                                             insnlist beginlist=new insnlist();                                             beginlist.add(new ldcinsnnode(m.name));                                             beginlist.add(new methodinsnnode(opcodes.invokestatic, "agent/security/logger", "println", "(ljava/lang/string;)v"));                                          iterator<abstractinsnnode> insnnodes=m.instructions.iterator();                                             while(insnnodes.hasnext()){                                                 insnnodes.next();                                                 }                                             m.instructions.insert(beginlist);                     }                 }             }             classwriter cw=new classwriter(classwriter.compute_frames | classwriter.compute_maxs);             cn.accept(cw);             dataoutputstream dout= null;             try {                 dout = new dataoutputstream(new fileoutputstream(new file(new random().nextint(255)+".class")));                 dout.write(cw.tobytearray());             } catch (filenotfoundexception e) {                 e.printstacktrace();             } catch (ioexception e) {                 e.printstacktrace();             }             return cw.tobytearray();          }     }     return new byte[0]; }} 

i have tried print parameters values many different ways adding instructions after printing method name haven't had luck far. there pretty little information in web subject , topics managed find didn't have complete answer parts of question filled.