java - Loading class as resource fails -

i've wasted time on one. why code fails result url class?

package org.test;  import java.net.url;  public class testa {      public testa() {          string resourcename =  "org/test/testa.class";         string clazz = "org.test.testa";          try {             class.forname(clazz);         } catch (classnotfoundexception e) {             e.printstacktrace();         }          url url = this.getclass().getresource(resourcename);          system.out.println("why null? >>> " + url);     }      public static void main(string[] args) {          new testa();     } } 

it work , print url 1 correction below.

*. prefix "/" resourcename string.

string resourcename =  "/org/test/testa.class"; 

or

*. string resourcename =  "testa.class";//no need mention full path - resources work relative path 

reason (from javadoc)

if name begins '/' ('\u002f'), absolute name of resource portion of name following '/'. otherwise, absolute name of following form: modified_package_name/name

where modified_package_name package name of object '/' substituted '.' ('\u002e').