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>
	 * Changes the set of bindings for this binding manager. Changing the set of
	 * bindings all at once ensures that: (1) duplicates are removed; and (2)
	 * avoids the possibility of unnecessary intermediate computations. This
	 * method clears the existing solution, but does not trigger a recomputation
	 * (other method calls are required to do that).
	 * </p>
	 * <p>
	 * This method completes in <code>O(n)</code>, where <code>n</code> is
	 * the number of bindings.
	 * </p>
	 * 
	 * @param bindings
	 *            The new array of bindings; may be <code>null</code>. This set
	 *            is copied into a local data structure.
	 */
	public final void setBindings(final Binding[] bindings) {
		if (Arrays.equals(this.bindings, bindings)) {
			return; 
		}
		if ((bindings == null) || (bindings.length == 0)) {
			this.bindings = null;
			bindingCount = 0;
		} else {
			final int bindingsLength = bindings.length;
			this.bindings = new Binding[bindingsLength];
			System.arraycopy(bindings, 0, this.bindings, 0, bindingsLength);
			bindingCount = bindingsLength;
		}