Bug 30005 Can't create linked source folder in new java project wizard [build path]
Build: I20030122 1) Open the new java project wizard 2) Enter a name, hit next 3) Click "Add Folder" on the "Source" tab. -> dialog comes up that doesn't have an option to create a new folder 4) Click cancel. Click "Browse" next to the output folder field -> this dialog allows you to create a new folder (even a linked folder) 5) Click cancel. Finish the wizard. 6) Open the java build path property page 3) Click "Add Folder" on the "Source" tab. -> now the dialog allows you to create a new linked folder. It should allow you to do this from the wizard.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/SourceContainerWorkbookPage.java
dialog.addFilter(filter);
		dialog.setInput(fCurrJProject.getProject().getParent());
		dialog.setSorter(new ResourceSorter(ResourceSorter.NAME));
		if (existing == null) {
			dialog.setInitialSelection(fCurrJProject.getProject());
		} else {
			dialog.setInitialSelection(existing.getResource());
		}		
		if (dialog.open() == FolderSelectionDialog.OK) {
			Object[] elements= dialog.getResult();	
			CPListElement[] res= new CPListElement[elements.length];
			for (int i= 0; i < res.length; i++) {
				IResource elem= (IResource)elements[i];
				res[i]= newCPSourceElement(elem);
			}
			return res;
		}
		return null;
	}
	
	private List getExistingContainers(CPListElement existing) {
		List res= new ArrayList();
		List cplist= fFoldersList.getElements();
		for (int i= 0; i < cplist.size(); i++) {
			CPListElement elem= (CPListElement)cplist.get(i);
			if (elem != existing) {
				IResource resource= elem.getResource();
				if (resource instanceof IContainer) { 
					res.add(resource);	
				}