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>
	 * Returns the active bindings for a particular command identifier. This
	 * method operates in O(n) time over the number of bindings.
	 * </p>
	 * <p>
	 * This method completes in <code>O(1)</code>. If the active bindings are
	 * not yet computed, then this completes in <code>O(nn)</code>, where
	 * <code>n</code> is the number of bindings.
	 * </p>
	 * 
	 * @param commandId
	 *            The identifier for the command whose bindings you wish to
	 *            find. This argument may be <code>null</code>.
	 * @return The array of active triggers (<code>TriggerSequence</code>)
	 *         for a particular command identifier. This value is guaranteed to
	 *         never be <code>null</code>, but it may be empty.
	 */
	public final TriggerSequence[] getActiveBindingsFor(final String commandId) {
		final Object object = getActiveBindingsByCommandId().get(commandId);
		if (object instanceof Collection) {
			final Collection collection = (Collection) object;
			return (TriggerSequence[]) collection
					.toArray(new TriggerSequence[collection.size()]);
		}
		return new TriggerSequence[0];
	}
	/**
	 * <p>
	 * Gets the currently active scheme.