Bug 129942 [Import/Export] Filtering the imported files don't work
Using the latest M5, setting the filtering don't work when importing. Import filesystem, Filter Types -> select a bunch of them, pressing OK should trigger the filtering (in 3.1 it works). In 3.2 it doesn't. Tracing this leads us to that the parentLabel is always null and with this value, the system tries to construct Path object which fails on Windows platform with NullPointerException. After this everything collapse and no filtering occurs.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/ResourceTreeAndListGroup.java
/**
     *	Return a boolean indicating whether all list elements associated with
     *	the passed tree element are currently checked
     *
     *	@return boolean
     *	@param treeElement java.lang.Object
     */
    protected boolean areAllElementsChecked(Object treeElement) {
        List checkedElements = (List) checkedStateStore.get(treeElement);
        if (checkedElements == null) {
			return false;
		}
        return getListItemsSize(treeElement) == checkedElements.size();
    }
    /**
     *	Iterate through the passed elements which are being realized for the first
     *	time and check each one in the tree viewer as appropriate
     */
    protected void checkNewTreeElements(Object[] elements) {
        for (int i = 0; i < elements.length; ++i) {
            Object currentElement = elements[i];
            boolean checked = checkedStateStore.containsKey(currentElement);
            treeViewer.setChecked(currentElement, checked);
            treeViewer.setGrayed(currentElement, checked
                    && !whiteCheckedTreeItems.contains(currentElement));
        }
    }
    /**
     *	An item was checked in one of self's two views.  Determine which
     *	view this occurred in and delegate appropriately