Bug 99732 [build path] Exclusion filters are added on new source folder when unnecessary
In RC2. If you add a source folder inside another source folder, the outer folder's exclusion filters are updated to avoid ambiguity. Now, remove the inner folder from the class path, and re-add it. Every time this is done, the inner folder is added to the outer folder's exclusion filter, ad infinitum.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/SourceContainerWorkbookPage.java
}
	private void editElementEntry(CPListElement elem) {
		if (elem.getLinkTarget() != null) {
			removeEntry();
			CPListElement entry= openNewLinkedSourceContainerDialog(elem);
			
			if (entry == null)
				entry= elem;
			
			fFoldersList.addElement(entry);
			fFoldersList.postSetSelection(new StructuredSelection(entry));
		} else {
			AddSourceFolderWizard wizard= newSourceFolderWizard(elem, fFoldersList.getElements(), fOutputLocationField.getText());
			OpenBuildPathWizardAction action= new OpenBuildPathWizardAction(wizard);
			action.run();
		}
	}
	private void editAttributeEntry(CPListElementAttribute elem) {
		String key= elem.getKey();
		if (key.equals(CPListElement.OUTPUT)) {
			CPListElement selElement=  elem.getParent();
			OutputLocationDialog dialog= new OutputLocationDialog(getShell(), selElement, fClassPathList.getElements());
			if (dialog.open() == Window.OK) {
				selElement.setAttribute(CPListElement.OUTPUT, dialog.getOutputLocation());
				fFoldersList.refresh();
				fClassPathList.dialogFieldChanged(); 
			}
		} else if (key.equals(CPListElement.EXCLUSION) || key.equals(CPListElement.INCLUSION)) {
			EditFilterWizard wizard= newEditFilterWizard(elem.getParent(), fFoldersList.getElements(), fOutputLocationField.getText());
			OpenBuildPathWizardAction action= new OpenBuildPathWizardAction(wizard);