when(mockInetAddress.getHostName()).thenReturn("myhost.domain.com");
            UniAddress uniAddress = new UniAddress(mockInetAddress);
            assertEquals("MYHOST", uniAddress.firstCalledName());
        }

        @Test

                return "fess-server";
            }
        });
        try {
            envMap.put("HOSTNAME", "myhost");
            final long pid = ProcessHandle.current().pid();
            assertEquals("fess-server@myhost:" + pid, systemHelper.getInstanceId());
        } finally {
            envMap.remove("HOSTNAME");
        }
    }

    @Test