Bug 13034 Cannot create a Source Folder in a new Java Project
build 20020404 If you try and create a Source Folder in a Java Project you have just created you get an error preventing you from hitting finish. STEPS 1) Create Java Project Foo 2) Open New->Source Folder 3) Enter Bar as the name - you will get "Cannot nest entry Bar inside entry Foo/Bar" 4) Create a folder Bar. 5) Add it as a source folder in the Properties Dialog for Foo. No problem.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/BuildPathsBlock.java
private StatusInfo fClassPathStatus;
	private StatusInfo fBuildPathStatus;
	private IJavaProject fCurrJProject;
		
	private IPath fOutputLocationPath;
	
	private IStatusChangeListener fContext;
	private Control fSWTWidget;	
	
	private boolean fShowSourceFolderPage;
	
	private SourceContainerWorkbookPage fSourceContainerPage;
	private ProjectsWorkbookPage fProjectsPage;
	private LibrariesWorkbookPage fLibrariesPage;
	
	private BuildPathBasePage fCurrPage;
		
	public BuildPathsBlock(IWorkspaceRoot root, IStatusChangeListener context, boolean showSourceFolders) {
		fWorkspaceRoot= root;
		fContext= context;
		
		fShowSourceFolderPage= showSourceFolders;
		
		
		fSourceContainerPage= null;
		fLibrariesPage= null;
		fProjectsPage= null;
		fCurrPage= null;
				
		BuildPathAdapter adapter= new BuildPathAdapter();