Create a JDBC pool, e.g. called y, and a jdbc resource using this pool, e.g.
called z. Node tree is updated properly (though it takes time). Delete the
pool - message is displayed saying that all the resources depending on this pool
will also be deleted, click OK. The pool is removed from the nodes tree, but
the resource is not. When you click on that resource node the following
exception is printed:
javax.servlet.ServletException: Target Unreachable, 'null' returned null
Once user clicks on JDBC Resources node, the tree underneath is updated to
reflect the deleted resource.