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
for ( int n = 0; n < columns.length; n++ )
		{
			orgColumnNameSet.add( metaData.getColumnName( n + 1 ) );
		}
		for ( int n = 0; n < columns.length; n++ )
		{
			columns[n] = new DataSetViewData( );
			columns[n].setParent( dataSet );
			columns[n].setDataType( metaData.getColumnType( n + 1 ) );
			columns[n].setDataTypeName( metaData.getColumnTypeName( n + 1 ) );
			columns[n].setPosition( n + 1 );
			columns[n].setAlias( metaData.getColumnAlias( n + 1 ) );
			columns[n].setComputedColumn( metaData.isComputedColumn( n + 1 ) );
			String columnName = metaData.getColumnName( n + 1 );
			
			String uniqueColumnName = getUniqueName( orgColumnNameSet,
					uniqueColumnNameSet,
					columnName,
					n );
			
			columns[n].setDataSetColumnName( uniqueColumnName );
			uniqueColumnNameSet.add( uniqueColumnName );
			
			if ( !uniqueColumnName.equals( columnName ) )
				updateModelColumn( dataSet, columns[n] );
		}
		updateModel( dataSet, columns );
		htColumns.put( dataSet, columns );
	}