finding all Java classes in a project

I need to create a list of all the classes which are in the current project.
What I wound up doing is going through the CompilationUnit(s) to get the output
folder(s) and deriving the classnames from the names of the .class files; not
very pretty. :-(  See code below.  There must be a better way!

I tried JavaProject.getSources(), but that just returned two ProjectMembers,
both empty, named Collections/java-src.jsrc and Collections/src.jsrc .

I saw that Svata recommended using JavaProject.getClassesDescriptor(), but I
have not been successful; it always returns null for me.

Surely I'm missing something.  Any and all suggestions appreciated!

Dave W.

---------------------------------------------------------------------------------

[...]
	int suffixLen = ".class".length();

	Project project = debugger.getProject();
	JavaProject jproj = JavaProject.getJavaProject(project);

	Collection cus = jproj.getCompilationUnits();

	Iterator cuit = cus.iterator();
	while ( cuit.hasNext() ) {
	    CompilationUnit cu = (CompilationUnit)cuit.next();
	    FileSet outFolders = cu.getOutputLocations(null);
	    Iterator fit = outFolders.iterator();
	    while ( fit.hasNext() ) {
		String fileName = ((java.net.URL)fit.next()).getFile();
		System.out.println("Output Folder: " + fileName);
		File file = new File(fileName);
		ArrayList list = new ArrayList();
		walk(file, list);
		String baseDir = file.getPath();
		int prefixLen = baseDir.length() + 1;
		Iterator lit = list.iterator();
		while ( lit.hasNext() ) {
		    String path = ((File)lit.next()).getPath();
		    if ( path.endsWith(".class") ) {
			int len = path.length();
			String className =
				path.substring(prefixLen, len - suffixLen);
			className = className.replace(File.separatorChar, '.');
			System.out.println(className);
			classNames.add(className);
		    } else {
			System.out.println("UNRECOGNIZED: " + path);
		    }
		}
	    }
	}
     }


     private void walk( File file, List list ) {
	if ( file.isDirectory() ) {
	    String[] kids = file.list();
	    for ( int i = 0; i < kids.length; i++ ) {
		walk(new File(file.toString()+ File.separator + kids[i]), list);
	    }
	} else {
	    list.add(file);
	}
     }

-- 
Dave Weatherford                Sun ONE Developer Products
[email protected]       Sun Microsystems, Inc.