Bug 19365 ArrayIndexOutOfBounds: editing Build Path .jar
F2 - File -> New -> Project... - Plug-in Development - Plug-in Project -> Next - set name="asd", Next - Next - select Hello World wizard, Next - Finish -> creates new Project "asd" - select it in the Packages view, right-click -> Properties... - go to Java Build Path page - go to contained Libraries tab - select any of the ECLIPSE_HOME... libraries shown in the list - press Edit... - press OK in the subsequent Variable Extension dialog, get the attached exception
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/LibrariesWorkbookPage.java
LayoutUtil.setHorizontalGrabbing(fLibrariesList.getListControl(null));
		
		int buttonBarWidth= converter.convertWidthInCharsToPixels(24);
		fLibrariesList.setButtonsMinWidth(buttonBarWidth);
		
		fLibrariesList.getTableViewer().setSorter(new CPListElementSorter());
		
		fSWTControl= composite;
				
		return composite;
	}
	
	private Shell getShell() {
		if (fSWTControl != null) {
			return fSWTControl.getShell();
		}
		return JavaPlugin.getActiveWorkbenchShell();
	}
	
	
	private class LibrariesAdapter implements IDialogFieldListener, IListAdapter {
		
		
		public void customButtonPressed(DialogField field, int index) {
			libaryPageCustomButtonPressed(field, index);
		}
		
		public void selectionChanged(DialogField field) {
			libaryPageSelectionChanged(field);
		}