Bug 186742 [Smoke]Can not create a joint dataset[07]
Description: [Smoke]Can not create a joint dataset[07] Build number: 2.2.0.v20070514-0630 Steps to reproduce: 1, New two datasets ds1 and ds2 2, New a joint dataset 3, Select ds1 as the left dataset Expected result: The dataset can be selected successfully and show all the columns of ds1 Actual result: Error occurs after select the ds1 and no columns list Error log: java.lang.ClassCastException: org.eclipse.jface.wizard.WizardDialog at org.eclipse.birt.report.designer.data.ui.dataset.JointDataSetPage.selectionChanged(JointDataSetPage.java:553) at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:162) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.core.runtime.Platform.run(Platform.java:850) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:46) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:193) at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160) at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2039) at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1138) at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1164) at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:227)
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/data/ui/util/DataSetProvider.java
Iterator iter = handle.iterator( );
		if ( iter != null )
		{
			while ( iter.hasNext( ) )
			{
				ColumnHintHandle hint = (ColumnHintHandle) iter.next( );
				
				for ( int n = 0; n < columns.length; n++ )
				{
					
					
					
					String columnName = columns[n].getName( );
					if ( resultSetColumnHandle != null
							&& ( columnName == null || columnName.trim( )
									.length( ) == 0 ) )
					{
						Iterator resultIter = resultSetColumnHandle.iterator( );
						if ( resultIter != null )
						{
							while ( resultIter.hasNext( ) )
							{
								ResultSetColumnHandle column = (ResultSetColumnHandle) resultIter.next( );
								if ( column.getPosition( ).intValue( ) == n + 1 )
								{
									columnName = column.getColumnName( );
									break;
								}
							}
						}