| career | drupal | java | mac | mysql | perl | scala | uml | unix  

JMeter example source code file (

This example JMeter source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - JMeter tags/keywords

abstractlistenerelement, abstractlistenerelement, abstracttestelement, object, object, override, override, visualizer, weakreference, weakreference

The JMeter source code

 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.apache.jmeter.reporters;

import java.lang.ref.WeakReference;

import org.apache.jmeter.testelement.AbstractTestElement;
import org.apache.jmeter.visualizers.Visualizer;

 * Base class for Listeners

public abstract class AbstractListenerElement extends AbstractTestElement {
    private static final long serialVersionUID = 240L;

    // TODO should class implement SampleListener?
    private transient WeakReference<Visualizer> listener;

    public AbstractListenerElement() {

    protected final Visualizer getVisualizer() {
        if (listener == null){ // e.g. in non-GUI mode
            return null;
        return listener.get();

    public void setListener(Visualizer vis) {
        listener = new WeakReference<Visualizer>(vis);

    public Object clone() {
        AbstractListenerElement clone = (AbstractListenerElement) super.clone();

        return clone;

Other JMeter examples (source code examples)

Here is a short list of links related to this JMeter source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller


new blog posts


Copyright 1998-2021 Alvin Alexander,
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.