Bug 86184 [KeyBinding] registry: Missing key binding for paste in emacs scheme
3.1 M5a 1. start fresh workspace 2. Window > Preferences > General > Keys 3. switch to "Modify" 4. select emacs scheme 5. select "Edit" category 6. select "Paste" command ==> all key bindings are missing, only the binding provided by "Editing Text" is there. This might be caused by the fact that Ctrl+Y is already declared in org.eclipse.ui/plugin.xml for the redo command.
bundles/org.eclipse.jface/src/org/eclipse/jface/bindings/BindingManager.java
* This method completes in <code>O(n)</code>, where <code>n</code> is
	 * the number of bindings.
	 * </p>
	 * 
	 * @param bindings
	 *            The bindings which all match the same trigger sequence; must
	 *            not be <code>null</code>, and should contain at least two
	 *            items. This collection should only contain instances of
	 *            <code>Binding</code> (i.e., no <code>null</code> values).
	 * @return The collection of bindings which match the current scheme.
	 */
	private final Collection resolveConflicts(final Collection bindings) {
		final Collection matches = new ArrayList();
		final Iterator bindingItr = bindings.iterator();
		Binding bestMatch = (Binding) bindingItr.next();
		/*
		 * Iterate over each binding and compares it with the best match. If a
		 * better match is found, then replace the best match and clear the
		 * collection. If the current binding is equivalent, then simply add it
		 * to the collection of matches. If the current binding is worse, then
		 * do nothing.
		 */
		while (bindingItr.hasNext()) {
			final Binding current = (Binding) bindingItr.next();
			/*
			 * SCHEME: Test whether the current is in a child scheme. Bindings
			 * defined in a child scheme will take priority over bindings
			 * defined in a parent scheme -- assuming that consulting their
			 * contexts led to a conflict.
			 */