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/BuildPathsBlock.java
boolean projectExists= false;
		List newClassPath= null;
		try {
			IProject project= fCurrJProject.getProject();
			projectExists= (project.exists() && project.getFile(".classpath").exists()); 
			if  (projectExists) {
				if (outputLocation == null) {
					outputLocation=  fCurrJProject.getOutputLocation();
				}
				if (classpathEntries == null) {
					classpathEntries=  fCurrJProject.getRawClasspath();
				}
			}
			if (outputLocation == null) {
				outputLocation= getDefaultBuildPath(jproject);
			}			
			if (classpathEntries != null) {
				newClassPath= getExistingEntries(classpathEntries);
			}
		} catch (CoreException e) {
			JavaPlugin.log(e);
		}
		if (newClassPath == null) {
			newClassPath= getDefaultClassPath(jproject);
		}
		
		List exportedEntries = new ArrayList();
		for (int i= 0; i < newClassPath.size(); i++) {
			CPListElement curr= (CPListElement) newClassPath.get(i);
			if (curr.isExported() || curr.getEntryKind() == IClasspathEntry.CPE_SOURCE) {