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
* </p>
	 * <p>
	 * This method completes in amortized <code>O(1)</code>.
	 * </p>
	 * 
	 * @param identifier
	 *            The identifier for the scheme to retrieve; must not be
	 *            <code>null</code>.
	 * @return A scheme with the given identifier.
	 */
	public final Scheme getScheme(final String identifier) {
		if (identifier == null) {
			throw new NullPointerException(
					"Cannot get a scheme with a null identifier"); 
		}
		Scheme scheme = (Scheme) schemesById.get(identifier);
		if (scheme == null) {
			scheme = new Scheme(identifier);
			schemesById.put(identifier, scheme);
			scheme.addSchemeListener(this);
		}
		return scheme;
	}
	/**
	 * <p>
	 * Ascends all of the parents of the scheme until no more parents are found.
	 * </p>
	 * <p>
	 * This method completes in <code>O(n)</code>, where <code>n</code> is
	 * the height of the context tree.