Bug 186913 [Regression]NPE throws out when open a older release product dataset 07]
Description: [Regression]NPE throws out when open a older release product dataset 07] Build number: 2.2.0.v20070515-0630 Steps to reproduce: 1, Open the attached report design 2, Choose one dataset and double click 3, Click OK button to update the dataset Expected result: The dataset update successfully without exceptions Actual result: NPE throws out Error log: java.lang.NullPointerException at org.eclipse.birt.report.data.oda.jdbc.ui.editors.SQLDataSetEditorPage.refreshPage(SQLDataSetEditorPage.java:1380) at org.eclipse.birt.report.data.oda.jdbc.ui.editors.SQLDataSetEditorPage.initializeControl(SQLDataSetEditorPage.java:272) at org.eclipse.birt.report.data.oda.jdbc.ui.editors.SQLDataSetEditorPage.createPageCustomControl(SQLDataSetEditorPage.java:191) at org.eclipse.datatools.connectivity.oda.design.ui.wizards.DataSetWizardPage.createControl(DataSetWizardPage.java:123) at org.eclipse.datatools.connectivity.oda.design.internal.ui.DataSetEditorPageCore.createContents(DataSetEditorPageCore.java:73) at org.eclipse.jface.preference.PreferencePage.createControl(PreferencePage.java:233) at org.eclipse.birt.report.designer.data.ui.dataset.PropertyPageWrapper.createPageControl(PropertyPageWrapper.java:45) at org.eclipse.birt.report.designer.data.ui.property.PropertyNode.createPageControl(PropertyNode.java:238) at org.eclipse.birt.report.designer.data.ui.dataset.DataSetEditor.populateDataSetEditor(DataSetEditor.java:623) at org.eclipse.birt.report.designer.data.ui.dataset.DataSetEditor.updateDataSetDesign(DataSetEditor.java:381) at org.eclipse.birt.report.designer.data.ui.dataset.DataSetParametersPage.performOk(DataSetParametersPage.java:848) at org.eclipse.birt.report.designer.data.ui.property.AbstractPropertyDialog.okPressed(AbstractPropertyDialog.java:608) at org.eclipse.birt.report.designer.data.ui.property.AbstractPropertyDialog.okPressed(AbstractPropertyDialog.java:593) at org.eclipse.birt.report.designer.data.ui.dataset.DataSetEditor.okPressed(DataSetEditor.java:504) at org.eclipse.birt.report.designer.data.ui.property.AbstractPropertyDialog.buttonPressed(AbstractPropertyDialog.java:475)
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
{
			RemoveAllAvailableDbObjects( );
			resetJdbcInfo( curDataSourceDesign );
			enableSchemaComponent( isSchemaSupported );
			setRootElement( );
			sourceViewerConfiguration.getContentAssistProcessor( )
					.setDataSourceHandle( curDataSourceDesign );
 
			populateAvailableDbObjects( );
			prevDataSourceDesign = curDataSourceDesign;
			try 
			{
				if ( this.getDataSetDesign( ).getQueryText( ) == null
						|| this.getDataSetDesign( )
								.getQueryText( )
								.trim( )
								.length( ) == 0 )
					return;
				
				ResultSetMetaData meta = this.metaDataProvider.getConnection( ).prepareStatement( this.getDataSetDesign( ).getQueryText( ) ).getMetaData( );
				if ( meta == null )
					return;
				
				ResultSetColumns rsc = this.getDataSetDesign( ).getPrimaryResultSet( ).getResultSetColumns( );
				if( meta.getColumnCount( )!= rsc.getResultColumnDefinitions( ).size( ))
				{
					this.shouldUpdateDataSetDesign = true;
					return;
				}