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/DialogTaskFilter.java
.getString("filtersDialog.priorityLabel")); 
            enablementButton.addSelectionListener(listener);
            highButton = new Button(parent, SWT.CHECK);
            highButton.setFont(parent.getFont());
            highButton
                    .setText(Messages.getString("filtersDialog.priorityHigh")); 
            highButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
            highButton.addSelectionListener(selectionListener);
            normalButton = new Button(parent, SWT.CHECK);
            normalButton.setFont(parent.getFont());
            normalButton.setText(Messages
                    .getString("filtersDialog.priorityNormal")); 
            normalButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
            normalButton.addSelectionListener(selectionListener);
            lowButton = new Button(parent, SWT.CHECK);
            lowButton.setFont(parent.getFont());
            lowButton.setText(Messages.getString("filtersDialog.priorityLow")); 
            lowButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
            lowButton.addSelectionListener(selectionListener);
        }
        public boolean isEnabled() {
            return enablementButton.getSelection();
        }
        public void setEnabled(boolean enabled) {
            enablementButton.setSelection(enabled);
        }
        public boolean isHighSelected() {
            return highButton.getSelection();
        }
        public void setHighSelected(boolean selected) {