### Question:
AbstractTraceeHandler implements SOAPHandler<SOAPMessageContext> { @Override public void close(MessageContext context) { } AbstractTraceeHandler(TraceeBackend traceeBackend); @Override final boolean handleMessage(final SOAPMessageContext context); @Override void close(MessageContext context); @Override Set<QName> getHeaders();  }### Answer:
@Test public void closeDoesNothing() { final MessageContext context = mock(MessageContext.class); unit.close(context); verifyZeroInteractions(context, traceeBackend); }