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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

check, hashtree, hashtreetraverser, linkedlist, linkedlist, listedhashtree, listedhashtree, nothreadclone, testelement, testelement, treecloner, treecloner, util

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.engine;

import java.util.LinkedList;

import org.apache.jmeter.engine.util.NoThreadClone;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jorphan.collections.HashTree;
import org.apache.jorphan.collections.HashTreeTraverser;
import org.apache.jorphan.collections.ListedHashTree;

public class TreeCloner implements HashTreeTraverser {

    private final ListedHashTree newTree;

    private final LinkedList<Object> objects = new LinkedList();

    private final boolean honourNoThreadClone;

     * Clone the test tree, honouring NoThreadClone markers.
    public TreeCloner() {

     * Clone the test tree.
     * @param honourNoThreadClone set false to clone NoThreadClone nodes as well
    public TreeCloner(boolean honourNoThreadClone) {
        newTree = new ListedHashTree();
        this.honourNoThreadClone = honourNoThreadClone;

    public void addNode(Object node, HashTree subTree) {
        if ( (node instanceof TestElement) // Check can cast for clone
           // Don't clone NoThreadClone unless honourNoThreadClone == false
          && (!honourNoThreadClone || !(node instanceof NoThreadClone))
        ) {
            node = ((TestElement) node).clone();
            newTree.add(objects, node);
        } else {
            newTree.add(objects, node);

    public void subtractNode() {

    public ListedHashTree getClonedTree() {
        return newTree;

    public void processPath() {


Other JMeter examples (source code examples)

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

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