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
}
	/**
	 * Selects or deselect all of the elements in the tree depending on the value of the selection
	 * boolean. Be sure to update the displayed files as well.
	 */
	public void setAllSelections(final boolean selection) {
		
		BusyIndicator.showWhile(fTreeViewer.getControl().getDisplay(), new Runnable() {
			public void run() {
				setTreeChecked(fRoot, selection);
				fListViewer.setAllChecked(selection);
			}
		});
	}
	/**
	 *	Sets the list viewer's providers to those passed
	 *
	 *	@param contentProvider ITreeContentProvider
	 *	@param labelProvider ILabelProvider
	 */
	public void setListProviders(
		IStructuredContentProvider contentProvider,
		ILabelProvider labelProvider) {
		fListViewer.setContentProvider(contentProvider);
		fListViewer.setLabelProvider(labelProvider);
	}
	/**
	 *	Sets the sorter that is to be applied to self's list viewer
	 */
	public void setListSorter(ViewerSorter sorter) {