code: protected URL resolveURL() {
  		if (this.clazz != null) {
  			return this.clazz.getResource(this.path);
  		}
  		else if (this.classLoader != null) {
  			return this.classLoader.getResource(this.path);
  		}
  		else {
  			return ClassLoader.getSystemResource(this.path);
  		}
  	}
docs: Resolves a URL for the underlying class path resource.
  @return the resolved URL, or {@code null} if not resolvable