Bug 6579 Packages view: can't open MANIFEST.MF of JAR file
1. Drill into a JAR with a manifest file (MANIFEST.MF) in the Packages view. Note: The JAR must be on the build path. 2. Double-click MANIFEST.MF -> nothing happens 3. From the context menu select "Open" -> nothing happens I used ant.jar in org.eclipse.ant.core as my test case.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/EditorUtility.java
* manner as #findModifier.
	 * 
	 * @return the SWT modifier bit, or <code>0</code> if no match was found
	 * @see findModifier
	 * @since 2.1.1
	 */
	public static int findLocalizedModifier(String token) {
		if (token == null)
			return 0;
		
		if (token.equalsIgnoreCase(Action.findModifierString(SWT.CTRL)))
			return SWT.CTRL;
		if (token.equalsIgnoreCase(Action.findModifierString(SWT.SHIFT)))
			return SWT.SHIFT;
		if (token.equalsIgnoreCase(Action.findModifierString(SWT.ALT)))
			return SWT.ALT;
		if (token.equalsIgnoreCase(Action.findModifierString(SWT.COMMAND)))
			return SWT.COMMAND;
		return 0;
	}
	/**
	 * Returns the modifier string for the given SWT modifier
	 * modifier bits.
	 * 
	 * @param stateMask	the SWT modifier bits
	 * @return the modifier string
	 * @since 2.1.1
	 */
	public static String getModifierString(int stateMask) {
		String modifierString= "";