Run jmx file using java - jmeter

Question

I created a jmx file using java code. But when i tried to execute the jmx file using java, it throws the exception. Pls help me.. I have added all the jars.
(Error in NonGUIDriver java.lang.IllegalArgumentException: Problem loading XML from:'/home/ksahu/MyScreenshots/k.jmx', conversion error com.thoughtworks.xstream.converters.ConversionException: null : null)
import org.apache.jmeter.engine.StandardJMeterEngine;
import org.apache.jmeter.protocol.http.sampler.HTTPSampler;
import org.apache.jmeter.save.SaveService;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.collections.HashTree;
import java.io.FileInputStream;
public class RunJMXfile {
public static void main(String[] argv) throws Exception {
// JMeter Engine
StandardJMeterEngine jmeter = new StandardJMeterEngine();
// Initialize Properties, logging, locale, etc.
JMeterUtils.loadJMeterProperties("/home/ksahu/apache-jmeter-2.13/bin/jmeter.properties");
JMeterUtils.setJMeterHome("/home/ksahu/apache-jmeter-2.13");
JMeterUtils.initLogging();// you can comment this line out to see extra log messages of i.e. DEBUG level
JMeterUtils.initLocale();
// Initialize JMeter SaveService
SaveService.loadProperties();
// Load existing .jmx Test Plan
FileInputStream in = new FileInputStream("/home/ksahu/MyScreenshots/k.jmx");
HashTree testPlanTree = SaveService.loadTree(in);
in.close();
// Run JMeter Test
jmeter.configure(testPlanTree);
jmeter.run();
}
}
This is the code that i have used to generate the jmx file
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.jmeter.control.LoopController;
import org.apache.jmeter.engine.StandardJMeterEngine;
import org.apache.jmeter.protocol.http.sampler.HTTPSampler;
import org.apache.jmeter.save.SaveService;
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 jmeterTesting {
public static void main(String[] args) throws FileNotFoundException, IOException{
// Engine
StandardJMeterEngine jm = new StandardJMeterEngine();
JMeterUtils.setJMeterHome("/home/ksahu/apache-jmeter-2.13");
// jmeter.properties
JMeterUtils.loadJMeterProperties("/home/ksahu/apache-jmeter-2.13/bin/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();
System.out.println(hashTree);
SaveService.saveTree(hashTree,new FileOutputStream("/home/ksahu/MyScreenshots/k.jmx"));
}
}

Answer 1

Try to open your /home/ksahu/MyScreenshots/k.jmx in JMeter GUI. If it does not open - there is a problem with the code, you generated the JMX file with. In that case update your question with the code, you used to create the k.jmx file.
See Chapter 4. RUN A JMETER TEST THROUGH A PROGRAM (FROM JAVA CODE) of the Five Ways To Launch a JMeter Test without Using the JMeter GUI for details.
Also there is a sample project which you can use as a reference: https://bitbucket.org/blazemeter/jmeter-from-code/

Answer 2

You need to change the text "org.apache.jorphan.collections.HashTree" in the JMX generated using java to "hashTree". Open the JMX in any text editor and do the replace as mentioned. If that doesn't suffice, include the below step.
You need to set TestElement.ENABLED, TestElement.TEST_CLASS and TestElement.GUI_CLASS explicitly for each element. For example a sampler can be defined as below.
HTTPSamplerProxy httpSampler = new HTTPSamplerProxy();
httpSampler.setDomain(DOMAIN);
httpSampler.setPort(PORT);
httpSampler.setPath(PATH);
httpSampler.setMethod(METHOD);
httpSampler.addArgument("", "${domain}");
httpSampler.setProperty(TestElement.ENABLED, true);
httpSampler.setResponseTimeout("20000");
httpSampler.setProperty(TestElement.TEST_CLASS, HTTPSamplerProxy.class.getName());
httpSampler .setProperty(TestElement.GUI_CLASS, HttpTestSampleGui.class.getName());