@Before public void before() { _exchange = Mockito.mock(ExchangeImpl.class, Mockito.RETURNS_DEEP_STUBS); _message = new DefaultMessage(); Mockito.when(_exchange.createMessage()).thenReturn(_message); _composer = new SOAPMessageComposer(); _composer.setContextMapper( new SOAPContextMapper() { public void mapFrom(SOAPBindingData sbd, Context context) { return; } }); }