Bug 47729 Unable to ignore '*,D' files [filters]
I am using Aegis which produces files having the extension ',D', e.g. 'MyClass.java,D'. I want to ignore these files from being shown in the Package Explorer. I tried the filter in Project - Properties - Java Build Path - Source - Exclusion Filter but failed. I tried **/*,D **/*.java,D **/*.java?D without success. Seems as if this filter only ignores .java files. The only help I found was the filter for 'non-java elements', but then my .properties files disappear, too.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/filters/CustomFiltersDialog.java
Shell shell,
			String viewId,
			boolean enablePatterns,
			String[] patterns,
			String[] enabledFilterIds) {
		super(shell);
		Assert.isNotNull(viewId);
		Assert.isNotNull(patterns);
		Assert.isNotNull(enabledFilterIds);
		fViewId= viewId;
		fPatterns= patterns;
		fEnablePatterns= enablePatterns;
		fEnabledFilterIds= enabledFilterIds;
		fBuiltInFilters= FilterDescriptor.getFilterDescriptors(fViewId);
		fFilterDescriptorChangeHistory= new Stack();
		setShellStyle(getShellStyle() | SWT.RESIZE);
	}
	protected void configureShell(Shell shell) {
		setTitle(FilterMessages.getString("CustomFiltersDialog.title"));  
		setMessage(FilterMessages.getString("CustomFiltersDialog.filterList.label")); 
		super.configureShell(shell);
		WorkbenchHelp.setHelp(shell, IJavaHelpContextIds.CUSTOM_FILTERS_DIALOG);
	}
	/**
	 * Overrides method in Dialog
	 * 
	 * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(Composite)
	 */	
	protected Control createDialogArea(Composite parent) {
		initializeDialogUnits(parent);