Bug 117450 Birt will hang when add several drivers through
Description: Add several drivers in the "Edit Data source" dialog, click "Ok" button, BIRT will hang and nothing can do except close BIRT forcibly. According to the developer's said, out of memory problem will occur when doing this operation. But why such operation cosumes so many memory? And the memory of my PC is 512M.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/dialogs/JdbcDriverManagerDialog.java
}
			public void widgetDefaultSelected( SelectionEvent e )
			{
				widgetSelected( e );
			}
		} );
		TableColumn column3 = new TableColumn( table, SWT.NONE );
		column3.setText( JdbcPlugin.getResourceString( "driverManagerDialog.text.driverColumnTemplate" ) ); 
		column3.setWidth( 100 );
		column3.addSelectionListener( new SelectionListener( ) {
			private boolean asc = false;
			public void widgetSelected( SelectionEvent e )
			{
				sortDriver( 3, asc );
				asc = !asc;
			}
			public void widgetDefaultSelected( SelectionEvent e )
			{
				widgetSelected( e );
			}
		} );
		driverViewer = new TableViewer( table );
		driverViewer.setContentProvider( new IStructuredContentProvider( ) {
			public Object[] getElements( Object inputElement )
			{
				if ( inputElement instanceof Map )
				{
					return ( (Map) inputElement ).entrySet( ).toArray( );
				}
				return new Object[0];