Bug 51895 Error when recovering javadoc archive path for a jar
1. add swt.jar to the Java build path of a project 2. open the properties dialog for this jar from the package explorer 3. change the javadoc location to : [x] javadoc in archive archive path: <path_to_eclipse>/plugins/org.eclipse.platform/doc/isv/doc.zip (in my case '/home/luc/host/eclipse/plugins/org.eclipse.platform/doc/isv/doc.zip') path within archive: reference/api 4. close the properties dialog 5. reopen the properties dialog The leading slash is missing, the dialog display the error 'the archive is missing '
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavadocConfigurationBlock.java
*/
		public Object[] getChildren(Object element) {
			List list= fProvider.getChildren(element);
			ArrayList res= new ArrayList();
			if (list != null) {
				for (int i= 0; i < list.size(); i++) {
					Object curr= list.get(i);
					if (fProvider.isFolder(curr)) {
						res.add(curr);
					}
				}
			}
			return res.toArray();
		}
	
		/* non java-doc
		 * @see ITreeContentProvider#getElements
		 */
		public Object[] getElements(Object element) {
			return new Object[] {fProvider.getRoot() };
		}
	
		/* non java-doc
		 * @see IContentProvider#dispose
		 */
		public void dispose() {
		}
	}
		
	private static class ZipDialogLabelProvider extends LabelProvider {