### Question:
JobHttpMessageConverter implements HttpMessageConverter<Job> { @Override public void write(Job t, String contentType, HttpOutputMessage outputMessage) throws IOException { throw new UnsupportedOperationException(); }  @Override boolean canRead(Class<?> clazz); @Override boolean canWrite(Class<?> clazz); @Override Job read(Class<? extends Job> clazz, HttpInputMessage inputMessage); @Override void write(Job t, String contentType, HttpOutputMessage outputMessage);  }### Answer:
@Test(expected = UnsupportedOperationException.class) public void write() throws Exception { converter.write(new Job(), null, null); }