Bug 167688 Setting number format on multiple elements gives NPE
If I select multiple data elements (for example one in each table cell) using the shift key, then try to 'format number' on those in the properties tab, I get a null pointer exception. An unexpected internal exception occurred.Please see log for detail. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Designer UI Plug-in ID:org.eclipse.birt.report.designer.ui Version:2.2.0.v20061211-0630 Error Code:Error.GUIException.invokedByUnexpectedException Error Message:Caused by java.lang.NullPointerException.
UI/org.eclipse.birt.report.designer.ui.views/src/org/eclipse/birt/report/designer/internal/ui/views/attributes/widget/FormatNumberDescriptor.java
else
			{
				fmtStr = PREVIEW_TEXT_INVALID_NUMBER_TO_PREVIEW;
			}
			cusPreviewLabel.setText( validatedFmtStr( fmtStr ) );
			return;
		}
	}
	public FormatNumberPattern getFmtPattern4Category( String category )
	{
		FormatNumberPattern fmtPattern = null;
		if ( categoryPatternMaps != null )
		{
			fmtPattern = (FormatNumberPattern) categoryPatternMaps.get( category );
		}
		if ( fmtPattern == null )
		{
			fmtPattern = new FormatNumberPattern( );
		}
		return fmtPattern;
	}
	public Control getFmtPage4Category( String category )
	{
		Control page = null;
		if ( categoryPageMaps != null )
		{
			page = (Control) categoryPageMaps.get( category );
		}
		if ( page == null )
		{