package issue13096;

import static com.sun.btrace.BTraceUtils.*;
import com.sun.btrace.annotations.*;

/**
 * A simple BTrace program that tracks the classloader
 * that returns null instead of an empty enumeration
 * from getResources() method.
 */
@BTrace public class NullGetResources {
   @OnMethod(
     clazz="+java.lang.ClassLoader", 
     method="getResources",
     location=@Location(Kind.RETURN)
   )   
   public static void getResources(@Self ClassLoader self, @Return java.util.Enumeration result) {
       if(result == null) {
        println("==========================");
        println(strcat("this = ", str(self)));
        jstack();
       }
   }
}