Bug 18220 Build 20020529 Error importing from source
When I import org.eclipse.jdt.debug from source I get the following error This resource is a duplicate and was not copied to the output folder MANIFEST.MF org.eclipse.jdt.debug/src-jdimodel/META-INF STEPS 1) Select Import - Plug-ins 2) Choose "Extraxt source archives" 3) Import org.eclipse.jdt.debug
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/CompilerPreferencePage.java
} else {
			try {
				int value= Integer.parseInt(number);
				if (value <= 0) {
					status.setError(JavaUIMessages.getFormattedString("CompilerPreferencePage.invalid_input", number)); 
				}
			} catch (NumberFormatException e) {
				status.setError(JavaUIMessages.getFormattedString("CompilerPreferencePage.invalid_input", number)); 
			}
		}
		return status;
	}
	
	private IStatus validateResourceFilters() {
		String text= (String) fWorkingValues.get(PREF_RESOURCE_FILTER);
		
		IWorkspace workspace= ResourcesPlugin.getWorkspace();
		String[] filters= getFilters(text);
		for (int i= 0; i < filters.length; i++) {
			String fileName= filters[i].replace('*', 'x');
			int resourceType= IResource.FILE;
			int lastCharacter= fileName.length() - 1;
			if (lastCharacter >= 0 && fileName.charAt(lastCharacter) == '/') {
				fileName= fileName.substring(0, lastCharacter);
				resourceType= IResource.FOLDER;
			}
			IStatus status= workspace.validateName(fileName, resourceType);
			if (status.matches(IStatus.ERROR)) {
				String message= JavaUIMessages.getFormattedString("CompilerPreferencePage.filter.invalidsegment.error", status.getMessage()); 
				return new StatusInfo(IStatus.ERROR, message);