<?xml version="1.0"?> <!-- No error reported. Seems like <moo> is accepted, but should not, since "##other" rules out elements in no namespace. Xerces reports: any-err-2.xml:18,8: (Error) cvc-complex-type.2.4.a: Invalid content starting with element 'moo'. One of '{"urn:test:foo":bar, WC[##other:"urn:test:foo"]}' is expected. --> <foo:foo xmlns:foo="urn:test:foo" xmlns:moo="urn:test:moo" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:test:foo any7_2.xsd"> <foo:bar/> <moo:moo/> </foo:foo>