Running maven command from Java using Runtime

Question

I am trying to run maven command from java main but it is not working for me as desired.

When i run the below code it runs the maven command on the same existing project in which this main class residing, but i want to run this maven command from this class to any another project folder.

Please help!

Thanks in advance!

package com.codecoverage.runner;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;


public class MavenCoberturaRunner {

    public static void main(String[] args) throws IOException, InterruptedException {

         Process p = null;

            try {
                p = Runtime.getRuntime().exec("C:/apache-maven-2.0.9/apache-maven-2.0.9/bin/mvn.bat clean cobertura:cobertura -Dcobertura.report.format=xml");
            } catch (IOException e) {
                System.err.println("Error on exec() method");
                e.printStackTrace();
            }

            copy(p.getInputStream(), System.out);
            p.waitFor();

        }

        static void copy(InputStream in, OutputStream out) throws IOException {
            while (true) {
                int c = in.read();
                if (c == -1)
                    break;
                out.write((char) c);
            }
        }
        }

Michał Kalinowski · Accepted Answer · 2015-07-24 10:42:57Z

2

You should use Runtime.exec(String command, String[] envp, File dir) method, which executes the specified string command in a separate process with the specified environment and working directory.

What you want is to set working directory so it points to the place you need to run Maven at.

answered Jul 24, 2015 at 10:42

Michał Kalinowski

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Dheerendra Kulkarni · Accepted Answer · 2015-07-24 10:42:46Z

1

use -f in command line

C:/apache-maven-2.0.9/apache-maven-2.0.9/bin/mvn.bat -f path/to/your/pom.xml clean cobertura:cobertura -Dcobertura.report.format=xml

answered Jul 24, 2015 at 10:42

Dheerendra Kulkarni

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