import java.io.*; import java.net.*; import java.util.jar.*; boolean result = true; try { System.out.println( "Creating JarFile java.io.File." ); File jarFile = new File( basedir, "child2/target/child2-1.0-SNAPSHOT-jar-with-dependencies.jar" ); System.out.println( "Checking for existence and file-ishness of: " + jarFile ); if ( !jarFile.exists() || jarFile.isDirectory() ) { System.err.println( "jar file is missing or a directory." ); return false; } System.out.println( "Creating JarFile instance." ); JarFile jf = new JarFile( jarFile ); System.out.println( "Looking for 'test/AppChild1.class' jar entry." ); if ( jf.getEntry( "test/AppChild1.class" ) == null ) { System.err.println( "child1 class is missing." ); result = false; } if ( jf.getEntry( "test/App.class" ) == null ) { System.err.println( "child2 class is missing." ); result = false; } System.out.println( "Looking for absence of 'junit/' jar entry." ); if ( jf.getEntry( "junit/framework/TestCase.class" ) != null ) { System.err.println( "junit jar should not be present." ); result = false; } } catch( IOException e ) { e.printStackTrace(); result = false; } return result;