Bug 147682 [Linux-WS]Button of Manage Drivers and Test Connection
Details: [Linux-WS]Button of Manage Drivers and Test Connection Description; Please see the attach image.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/profile/JDBCSelectionPageHelper.java
* selected driver is changed 2. The value of inputed URL is changed 3. When
	 * the control is created 4.
	 */
	private void updateTestButton( )
	{
		if ( !isURLBlank( ) )
		{
			
			setMessage( EMPTY_URL, IMessageProvider.ERROR );
			testButton.setEnabled( false );
		}
		else
		{
			setMessage( DEFAULT_MESSAGE );
			if ( !testButton.isEnabled( ) )
				testButton.setEnabled( true );
		}
	}
	
	private void verifyJDBCProperties( )
	{
		if ( driverChooserCombo != null
				&& jdbcUrl != null )
		{
			if ( getSelectedDriverClassName( ) != null
					&& getSelectedDriverClassName( ).trim( ).length( ) > 0
					&& jdbcUrl.getText( ) != null
					&& jdbcUrl.getText( ).trim( ).length( ) > 0 )
				setPageComplete( true );
			else