1 package org.apache.maven.wrapper;
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22 import java.io.File;
23 import java.lang.reflect.Method;
24 import java.net.URL;
25 import java.net.URLClassLoader;
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32 public class BootstrapMainStarter
33 {
34 public void start( String[] args, File mavenHome )
35 throws Exception
36 {
37 File mavenJar = findLauncherJar( mavenHome );
38 URLClassLoader contextClassLoader = new URLClassLoader( new URL[] { mavenJar.toURI().toURL() },
39 ClassLoader.getSystemClassLoader().getParent() );
40 Thread.currentThread().setContextClassLoader( contextClassLoader );
41 Class<?> mainClass = contextClassLoader.loadClass( "org.codehaus.plexus.classworlds.launcher.Launcher" );
42
43 System.setProperty( "maven.home", mavenHome.getAbsolutePath() );
44 System.setProperty( "classworlds.conf", new File( mavenHome, "/bin/m2.conf" ).getAbsolutePath() );
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46 Method mainMethod = mainClass.getMethod( "main", String[].class );
47 mainMethod.invoke( null, new Object[] { args } );
48 }
49
50 private File findLauncherJar( File mavenHome )
51 {
52 for ( File file : new File( mavenHome, "boot" ).listFiles() )
53 {
54 if ( file.getName().matches( "plexus-classworlds-.*\\.jar" ) )
55 {
56 return file;
57 }
58 }
59 throw new RuntimeException( String.format( "Could not locate the Maven launcher JAR"
60 + " in Maven distribution '%s'.", mavenHome ) );
61 }
62 }