Bug 145992 [regression] drill through to report document with toc in target does not work properly
steps to reproduce: - create 1st report - add a report element with toc entry - preview in viewer - create 2nd report - add a drill through link to the report document expected behavior: - drill through can be added actual behavior: - when select toc in target, exception was thrown out
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HyperlinkBuilder.java
private static final String REQUIED_MARK = "*"; 
	private static final IChoiceSet CHOICESET_TARGET = DesignEngine.getMetaDataDictionary( )
			.getChoiceSet( DesignChoiceConstants.CHOICE_TARGET_NAMES_TYPE );
	private static final IChoiceSet CHOICESET_FORMAT = DesignEngine.getMetaDataDictionary( )
			.getChoiceSet( DesignChoiceConstants.CHOICE_ACTION_FORMAT_TYPE );
	private static final ParamBinding dummyParameterBinding = StructureFactory.createParamBinding( );
	private ActionHandle inputHandle;
	private List dataSetList;
	private Composite displayArea;
	private String selectedType;
	
	private Button noneRadio, uriRadio, bookmarkRadio, drillRadio;
	private Combo bookmarkChooser, targetChooser, formatChooser;
	private Text bookmarkEditor;
	/**
	 * Target report design location.
	 */
	private Text locationEditor;
	private CLabel messageLine;
	private TableViewer paramBindingTable;
	private ComboBoxCellEditor parameterChooser;
	private ArrayList bindingList = new ArrayList( );
	private ArrayList parameterList = new ArrayList( );
	private Object targetReportHandle;
	private IStructuredContentProvider contentProvider = new IStructuredContentProvider( ) {
		public void dispose( )
		{
		}
		public void inputChanged( Viewer viewer, Object oldInput,
				Object newInput )