kup. Or if you want to supply more objects, use a call to the method
{@link org.openide.util.lookup.Lookups#fixed(java.lang.Object...) fixed(Object []x) }.
<EM> Note: </EM> The lookups returned from methods <code>singleton(...)</code> and
<code>fixed(...)</code> do <EM>
not </EM> support dynamic changes and attaching listeners. Their content is
fixed from the time you call the creating method.

<H2> ProxyLookup </H2>
There can be situations where you get a lookup object from someone else and you
want your l