Bug 6238 jar packager: ide freezes on page flip, no progress shown
i selected org.eclipse.jdt.ui org.eclipse.jdt.ui.tests.refactoring (couple thousands of files) and opened the jar packager or flipping the page the whole ide froze. and there was no progress report shown. it took more or less 2 minutes - of total freeze - to flip to the other wizard page. i suggest performing it in another thread and showing progress
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/CheckboxTreeAndListGroup.java
Object[] children= getTreeChildren(treeElement);
		for (int i= 0; i < children.length; ++i)
			determineWhiteCheckedDescendents(children[i]);
		
		if (determineShouldBeWhiteChecked(treeElement))
			setWhiteChecked(treeElement, true);
	}
	/**
	 * Causes the tree viewer to expand all its items
	 */
	public void expandAll() {
		fTreeViewer.expandAll();
	}
	/**
	 *	Answers a flat collection of all of the checked elements in the
	 *	list portion of self
	 *
	 *	@return java.util.Vector
	 */
	public Iterator getAllCheckedListItems() {
		Set result= new HashSet();
		Iterator listCollectionsEnum= fCheckedStateStore.values().iterator();
		while (listCollectionsEnum.hasNext())
			result.addAll((List)listCollectionsEnum.next());
		return result.iterator();
	}
	/**