Bug 31249 Bad default modifier for Hyperlink style navigation on MacOS X
M5 The default modifier for hyperlink style navigation is "Control" which doesn't work well on MacOS X because here the Control modifier is used to simulate a right-click (opening the context menu). The consequence of this is that if control is pressed the users gets the underlined text style when hovering, but he cannot follow the link because a click results in opening the context menu. The default on MacOS should be 'Command'
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/PreferenceConstants.java
* A named preference that controls if empty inner packages are folded in
	 * the hierarchical mode of the package explorer.
	 * <p>
	 * Value is of type <code>Boolean</code>: if <code>true</code> empty
	 * inner packages are folded.
	 * </p>
	 * @since 2.1
	 */
	public static final String APPEARANCE_FOLD_PACKAGES_IN_PACKAGE_EXPLORER= "org.eclipse.jdt.ui.flatPackagesInPackageExplorer";
	/**
	 * A named preference that defines how member elements are ordered by the
	 * Java views using the <code>JavaElementSorter</code>.
	 * <p>
	 * Value is of type <code>String</code>: A comma separated list of the
	 * following entries. Each entry must be in the list, no duplication. List
	 * order defines the sort order.
	 * <ul>
	 * <li><b>T</b>: Types</li>
	 * <li><b>C</b>: Constructors</li>
	 * <li><b>I</b>: Initializers</li>
	 * <li><b>M</b>: Methods</li>
	 * <li><b>F</b>: Fields</li>
	 * <li><b>SI</b>: Static Initializers</li>
	 * <li><b>SM</b>: Static Methods</li>
	 * <li><b>SF</b>: Static Fields</li>
	 * </ul>
	 * </p>
	 * @since 2.1
	 */
	public static final String APPEARANCE_MEMBER_SORT_ORDER= "outlinesortoption";