Bug 131692 [Contributions] ContributionManager.insertAfter throws unhelpful IllegalArgumentException
look at insertBefore and you see this line throw new IllegalArgumentException("can't find ID " + ID);//$NON-NLS-1$ but in insertAfter it looks like this throw new IllegalArgumentException("can't find ID");//$NON-NLS-1$ NOTE: in the second example it doesn't tell you what the ID is. My "patch" is to make insertAfter behave like insertBefore
bundles/org.eclipse.jface/src/org/eclipse/jface/action/ContributionManager.java
/**
     * The list of contribution items.
     */
    private List contributions = new ArrayList();
    /** 
     * Indicates whether the widgets are in sync with the contributions.
     */
    private boolean isDirty = true;
    /** 
     * Number of dynamic contribution items.
     */
    private int dynamicItems = 0;
    /**
     * The overrides for items of this manager
     */
    private IContributionManagerOverrides overrides;
    /**
     * Creates a new contribution manager.
     */
    protected ContributionManager() {
        
    }
    /* (non-Javadoc)
     * Method declared on IContributionManager.
     */
    public void add(IAction action) {