Bug 307163 DBCS3.6: Resource Filter UI didn't restore grouped filters
Build Identifier: I20100313-1044 When reopening Resource Filters property editor after adding several filters under either of top-level AND/OR/NOT group, none of children in such top-level group filter is shown while settings are actually persisted in .project. Reproducible: Always Steps to Reproduce: 1. Create a project and add some files and folders. 2. Add resource filters to the project or the folder just created, and filters are grouped by AND/OR/NOT. 3. Ensure filters are active for exiting resources under the project. 4. Reopen "Resource Fileters" property editor 5. Verify the filters added in Step 2 are restored. Problem: None of child filters under top-level AND/OR/NOT group is shown Expected: All nested child filters under top-level AND/OR/NOT group are totally shown. Note that persistent entries for all filters are actually existing in a .project file.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/ResourceFilterGroup.java
public Object[] getChildren(Object parentElement) {
			if (parentElement instanceof FilterCopy)
				return ((FilterCopy) parentElement).getChildren();
			return null;
		}
		public Object getParent(Object element) {
			if (element instanceof FilterCopy) {
				if (((FilterCopy) element).getParent() != null)
					return ((FilterCopy) element).getParent();
				return filters;
			}
			return null;
		}
		public boolean hasChildren(Object element) {
			if (element instanceof FilterCopy) {
				FilterCopy[] children = ((FilterCopy) element).getChildren();
				return children != null && children.length > 0;
			}
			return false;
		}
		public Object[] getElements(Object inputElement) {
			return getChildren(inputElement);
		}
		public void dispose() {
		}
		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
		}
	}
	class LabelProvider implements ITableLabelProvider {