Bug 190984 xtab filter/sort did not work properly when using a joined data set
steps to reproduce: - use the attached report - try to add a filter/sort on xtab, e.g. using country column - notice that the value list is unavailable - try to enter the filter/sort condition manually, e.g. "USA" - preview in layout expected behavior: - when use joined data set, the value list should be available - report should be previewed properly actual behavior: - the value list was unavailable - NPE was thrown out when preview the report with the filter/sort condition being completed manually
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/CubeQueryUtil.java
continue;
								else
									result.add( binding );
							}
							break;
						}
					}
					continue;
				}
				result.add( binding );
			}
			return result;
		}
		catch ( DataException e )
		{
			throw new AdapterException( e.getLocalizedMessage( ), e );
		}
	}
	/*
	 * (non-Javadoc)
	 * @see org.eclipse.birt.report.data.adapter.api.DataRequestSession#getReferencedLevels(java.lang.String, java.lang.String, org.eclipse.birt.data.engine.olap.api.query.ICubeQueryDefinition)
	 */
	public List getReferencedLevels( String targetLevel,
			String bindingExpr, ICubeQueryDefinition queryDefn ) throws AdapterException
	{
		try
		{
			List result = new ArrayList();
			DimLevel target = OlapExpressionUtil.getTargetDimLevel( targetLevel );