Bug 175664 [Mac] Unexpected internal exception occurs when invoke expression builder
Description: There are two problems: 1. "fx" button (Click this button to invoke Expression Builder) could not be displayed correctly, nothing displayed in the button. 2. Click on the button, an unexpected internal exception occurs. Version:2.2.0.v20070205 Steps to reproduce: 1.Insert a Data item to the layout. Click "fx" button to invoke the expression builder, although on Mac "fx" button could not display correctly. Error log: Argument cannot be null Plug-in Provider: Eclipse.org Plug-in Name: BIRT Designer UI Plug-in ID: org.eclipse.birt.report.designer.ui Error Code: Error.GUIException.invokedByUnexpectedException Error Message:Argument cannot be null
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/util/UIUtil.java
public static String getPluginName( String pluginId )
	{
		return getBundleValue( pluginId,
				org.osgi.framework.Constants.BUNDLE_NAME );
	}
	/**
	 * Returns the plug-in version
	 * 
	 * @param pluginId
	 *            the identify of the plugin
	 * 
	 * @return the plug-in version, or null if the plug-in is not found
	 */
	public static String getPluginVersion( String pluginId )
	{
		return getBundleValue( pluginId,
				org.osgi.framework.Constants.BUNDLE_VERSION );
	}
	private static String getBundleValue( String pluginId, String key )
	{
		Assert.isNotNull( pluginId );
		Bundle bundle = Platform.getBundle( pluginId );
		if ( bundle != null )
		{
			return (String) bundle.getHeaders( ).get( key );
		}
		return null;
	}
	public static void resetViewSelection( final EditPartViewer viewer,
			final boolean notofyToMedia )