Bug 180408 After correct the expression of dimension, NPE throws out and the x-tab can not be previewed anymore[1102]
Description: After correct the expression of level, NPE throws out and the x-tab can not be previewed anymore[1102] Build number: 2.2.0.v20070402-0630 Steps to reproduce: 1, New a cube with two report design 2, New a x-tab using the cube 3, Change the level's name to CUSTOMER_REGION1 4, Preview the report 5, Correct the expression in x-tab: dimension["Customer"]["CUSTOMER_REGION1"] 6, Preview the report Expected result: After step4, the report can not be previewed but not shown up the NPE message After step5 and 6, the report can be previewed successfully Actual result: After step4, NPE pops up After step6, NPE still pops up Error log:
data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/impl/DataSetIterator.java
{
					return i;
				}
			}
			return -1;
		}
		else
		{
			return this.metadata.getFieldIndex( name );
		}
	}
	/*
	 * (non-Javadoc)
	 * @see org.eclipse.birt.data.engine.olap.api.cube.IDatasetIterator#getFieldType(java.lang.String)
	 */
	public int getFieldType( String name ) throws BirtException
	{
		if ( this.metadata == null )
		{
			return it.getResultMetaData( )
					.getColumnType( this.getFieldIndex( name ) );
		}
		else
			return this.metadata.getFieldType( name );
	}
	/*
	 * (non-Javadoc)
	 * @see org.eclipse.birt.data.engine.olap.api.cube.IDatasetIterator#getValue(int)
	 */
	public Object getValue( int fieldIndex ) throws BirtException