Maven Invoker API

gistfile1.java

InvocationRequest request = new DefaultInvocationRequest();

File pom = new File("MY_PROJECT/pom.xml");
request.setPomFile(pom);

File baseDir = new File("MY_PROJECT");
request.setBaseDirectory(baseDir);

ArrayList<String> goals = new ArrayList<String>();
goals.add("clean");
goals.add("install");
request.setGoals(goals);
request.setShowErrors(true);

DefaultInvoker invoker = new DefaultInvoker();
String mavenHome = System.getenv("MAVEN_HOME");
invoker.setMavenHome(new File(mavenHome));
InvocationResult result;
try {
        result = invoker.execute(request);
} catch (MavenInvocationException e) {
	e.printStackTrace();
}