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
fTreeViewer.setGrayed(treeElement, false);
		
		Object[] children= getTreeChildren(treeElement);
		for (int i= 0; i < children.length; ++i) {
			setTreeChecked(children[i], state);
		}
	}
	/**
	 *	Sets the tree viewer's providers to those passed
	 *
	 *	@param contentProvider ITreeContentProvider
	 *	@param labelProvider ILabelProvider
	 */
	public void setTreeProviders(
		ITreeContentProvider contentProvider,
		ILabelProvider labelProvider) {
		fTreeViewer.setContentProvider(contentProvider);
		fTreeViewer.setLabelProvider(labelProvider);
	}
	/**
	 *	Sets the sorter that is to be applied to self's tree viewer
	 */
	public void setTreeSorter(ViewerSorter sorter) {
		fTreeViewer.setSorter(sorter);
	}
	/**
	 *	Adjusts the collection of references to white-checked tree elements appropriately.
	 *
	 *	@param treeElement java.lang.Object
	 *	@param isWhiteChecked boolean