Bug 69424 TVT3.0: Multiple Mnemonics in Tasks -> Filters
From the main Workbench view, click the Task menu (drop down arrow) and select Filters. There are duplicated mnemonics for (D). See the attached screenshot.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/DialogMarkerFilter.java
filterOnMarkerLimit.setLayoutData(new GridData());
        filterOnMarkerLimit.addSelectionListener(selectionListener);
        markerLimit = new Text(composite, SWT.SINGLE | SWT.BORDER);
        markerLimit.setTextLimit(6);
        GridData gridData = new GridData();
        gridData.widthHint = convertWidthInCharsToPixels(10);
        markerLimit.setLayoutData(gridData);
        markerLimit.setFont(font);
        markerLimit.addModifyListener(new ModifyListener() {
            public void modifyText(ModifyEvent e) {
                markDirty();
            }
        });
    }
    /**
     * This method is intended to be overridden by subclasses of FiltersDialog. The
     * attributes area will be created just above the Restore Defaults button.
     * 
     * @param parent the parent Composite
     */
    protected void createAttributesArea(Composite parent) {
    }
    private ILabelProvider getLabelProvider() {
        return new TypesLabelProvider();
    }
    /**
     * Returns the selected marker types.
     *
     * @return the selected marker types
     */