Bug 312959 [Import/Export] importing file from big disk hangs UI
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/ResourceTreeAndListGroup.java
for (int i = 0; i < children.length; ++i) {
                if (checkedStateStore.containsKey(children[i])) {
					return true;
				}
            }
        }
        return false;
    }
    /**
     * Returns a boolean indicating whether the passed tree item should be
     * white-checked.
     *
     * @return boolean
     * @param treeElement java.lang.Object
     */
    protected boolean determineShouldBeWhiteChecked(Object treeElement) {
        return areAllChildrenWhiteChecked(treeElement)
                && areAllElementsChecked(treeElement);
    }
    /**
     *	Recursively add appropriate tree elements to the collection of
     *	known white-checked tree elements.
     *
     *	@param treeElement java.lang.Object
     */
    protected void determineWhiteCheckedDescendents(Object treeElement) {
        
        
        
        Object[] children = treeContentProvider.getElements(treeElement);