Bug 207561 [Regression] Conversion errror when preview the attached report design
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
tablescomposite.setLayout( layout );
		{
			GridData data = new GridData( GridData.FILL_VERTICAL );
			data.grabExcessVerticalSpace = true;
			tablescomposite.setLayoutData( data );
		}
		
		Label dataSourceLabel = new Label( tablescomposite, SWT.LEFT );
		dataSourceLabel.setText( JdbcPlugin.getResourceString( "tablepage.label.availableItems" ) );
		{
			GridData data = new GridData( );
			dataSourceLabel.setLayoutData( data );
		}
		availableDbObjectsTree = new Tree( tablescomposite, SWT.BORDER
				| SWT.MULTI );
		{
			GridData data = new GridData( GridData.FILL_BOTH );
			data.grabExcessHorizontalSpace = true;
			data.grabExcessVerticalSpace = true;
			data.heightHint = 150;
			availableDbObjectsTree.setLayoutData( data );
		}
		availableDbObjectsTree.addMouseListener( new MouseAdapter( ) {
			public void mouseDoubleClick( MouseEvent e )
			{
				populateEventData( e );
				insertText( (String) e.data );
			}
		} );
		availableDbObjectsTree.addSelectionListener( new SelectionAdapter( ) {