Bug 199021 Error message pops up several times when click an invalid dataset
Description: There is a sqlserver datasource and dataset, remove the jtds driver to let the dataset invalid. Double click on the dataset, the error message will pop up serveral times. Build version:2.2.0.v20070807-0630 Steps to reproduce: 1. Create a sqlserver datasource and dataset. 2. Remove the jtds driver, and the dataset will be invalid. 3. Double click on the dataset. Expect result: Error message pops up once to indicate the problem. Actual result: Error message pops up serveral times.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
}
			}
		}
	}
	/**
	 * 
	 * @param schemaName
	 * @param tableName
	 * @return
	 */
	private String getTableNameWithSchema( String schemaName, String tableName )
	{
		String tableNameWithSchema = tableName;
		if ( schemaName != null && schemaName.trim( ).length( ) > 0 )
		{
			tableNameWithSchema = schemaName + "." + tableName;
		}
		return tableNameWithSchema;
	}
	/**
	 * if the schema is not support, populate the table list
	 *
	 */
	protected void populateTableList( )
	{
		if ( rootNode != null )
		{
			removeTreeItem( rootNode );
		}
		ResultSet tablesRs = null;