How to create and run Apache JMeter Test Scripts from a Java program?

JMeterCodeRunner.java

import org.apache.jmeter.control.LoopController;
import org.apache.jmeter.engine.StandardJMeterEngine;
import org.apache.jmeter.protocol.http.sampler.HTTPSampler;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jmeter.testelement.TestPlan;
import org.apache.jmeter.threads.SetupThreadGroup;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.collections.HashTree;

public class JMeterCodeRunner {

    public static void main(String[] args){
        // Engine
        StandardJMeterEngine jm = new StandardJMeterEngine();
        // jmeter.properties
        JMeterUtils.loadJMeterProperties("c:/tmp/jmeter.properties");

        HashTree hashTree = new HashTree();     

        // HTTP Sampler
        HTTPSampler httpSampler = new HTTPSampler();
        httpSampler.setDomain("www.google.com");
        httpSampler.setPort(80);
        httpSampler.setPath("/");
        httpSampler.setMethod("GET");

        // Loop Controller
        TestElement loopCtrl = new LoopController();
        ((LoopController)loopCtrl).setLoops(1);
        ((LoopController)loopCtrl).addTestElement(httpSampler);
        ((LoopController)loopCtrl).setFirst(true);

        // Thread Group
        SetupThreadGroup threadGroup = new SetupThreadGroup();
        threadGroup.setNumThreads(1);
        threadGroup.setRampUp(1);
        threadGroup.setSamplerController((LoopController)loopCtrl);

        // Test plan
        TestPlan testPlan = new TestPlan("MY TEST PLAN");

        hashTree.add("testPlan", testPlan);
        hashTree.add("loopCtrl", loopCtrl);
        hashTree.add("threadGroup", threadGroup);
        hashTree.add("httpSampler", httpSampler);       

        jm.configure(hashTree);

        jm.run();
    }
}

Notes

Dependencies

These are the bare mininum JARs required based on JMeter 2.9 and the HTTPSampler used. Other samplers will most likely have different library JAR dependencies.

ApacheJMeter_core.jar
jorphan.jar
avalon-framework-4.1.4.jar
ApacheJMeter_http.jar
commons-logging-1.1.1.jar
logkit-2.0.jar
oro-2.0.8.jar
commons-io-2.2.jar
commons-lang3-3.1.jar

Original Reference: http://stackoverflow.com/questions/19147235/how-to-create-and-run-apache-jmeter-test-scripts-from-a-java-program