### Question:
HazelcastFactSebSerializer implements ByteArraySerializer<FactSEB> { @Override public byte[] write(FactSEB object) throws IOException { return WRITER.writeValueAsBytes(object); }  @Override byte[] write(FactSEB object); @Override FactSEB read(byte[] buffer); @Override int getTypeId(); @Override void destroy();  }### Answer:
@Test public void testSerializeNull() throws Exception { assertNotNull(serializer.write(null)); }