import java.io.*; import java.net.*; import java.util.zip.*; boolean result = true; String basename = "no-target-dir-1.0-SNAPSHOT"; try { File zipFile = new File( basedir, "target/" + basename + "-project.zip" ); System.out.println( "Checking for existence and file-ishness of: " + zipFile ); if ( !zipFile.exists() || zipFile.isDirectory() ) { System.err.println( "zip file is missing or a directory." ); return false; } System.out.println( "Creating zipFile instance." ); ZipFile zf = new ZipFile( zipFile ); System.out.println( "Looking for project classes." ); ZipEntry je = zf.getEntry( basename + "/target/classes/test/App.java" ); if ( je != null ) { System.out.println( "project classes should not be included." ); result = false; } } catch( IOException e ) { e.printStackTrace( System.out ); result = false; } return result;