Bug 180608 [Regression]NPE throws out when preview the result in dataset[07]
Description: [Regression]NPE throws out when preview the result in dataset[07] Build number: 2.2.0.v20070403-0630 Steps to reproduce: 1, Use attached report 2, Edit Data Set 3, Preview the Data Set Expected result: The preview should be success Actual result: NPE throws out Error log:
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/executor/ResultClass.java
String ntName = IOUtil.readString( dis );
				boolean bool = IOUtil.readBool( dis );
				String dpdpName = IOUtil.readString( dis );
				
				ResultFieldMetadata metaData = new ResultFieldMetadata( driverPos,
						name,
						lable,
						Class.forName( dtName ),
						ntName,
						bool );
				metaData.setAlias( alias );
				if ( dpdpName != null )
					metaData.setDriverProvidedDataType( Class.forName( dpdpName ) );
				newProjectedColumns.add( metaData );
			}
			dis.close( );
			
			initColumnsInfo( newProjectedColumns );
		}
		catch ( ClassNotFoundException e )
		{
			throw new DataException( ResourceConstants.RD_LOAD_ERROR,
					e,
					"Result Class" );
		}
		catch ( IOException e )
		{
			throw new DataException( ResourceConstants.RD_LOAD_ERROR,
					e,
					"Result Class" );