### Question:
QName implements DMNProperty { public String getPrefix() { return prefix; } QName();  QName(final BuiltInType type);  QName(final String namespaceURI,
                 final String localPart);  QName(final String namespaceURI,
                 final String localPart,
                 final String prefix); QName copy(); String getNamespaceURI(); String getLocalPart(); String getPrefix(); @Override String toString(); @Override boolean equals(final Object o); @Override int hashCode(); static final String NULL_NS_URI; static final String DEFAULT_NS_PREFIX; }### Answer:
@Test public void testZeroArgumentConstructor() { final QName implicitQName = new QName(); final QName explicitQName = new QName(QName.NULL_NS_URI, BuiltInType.UNDEFINED.getName(), DMNModelInstrumentedBase.Namespace.FEEL.getPrefix()); assertEquals(explicitQName, implicitQName); }