*/
    protected Map<String, String> getEnvMap() {
        if (envMap != null) {
            return envMap;
        }
        return System.getenv();
    }

    /**
     * Set the environment map.
     * @param envMap The environment map.
     */
    public void setEnvMap(final Map<String, String> envMap) {
        this.envMap = envMap;
    }

    /**
     * Log the login activity.

			hkv, _ := hkvs.Lookup(kv.Key)
			if hkv.Secret && redactSecrets {
				// Skip adding any secret to the returned value.
				continue
				// envPair.Value = redactedSecret
			}
			envMap[kv.Key] = envPair
		}
	}
	return envMap
}

// EnvPair represents an environment variable and its value.
type EnvPair struct {
	Name, Value string
}

// SubsysInfo holds config info for a subsystem target.

    }

    @Test
    public void test_getEnvMap_withoutCustomMap() {
        activityHelper.setEnvMap(null);
        Map<String, String> envMap = activityHelper.getEnvMap();
        assertNotNull(envMap);
    }

    @Test
    public void test_init_withDockerEnvironment() {
        Map<String, String> dockerEnv = new HashMap<>();
        dockerEnv.put("FESS_APP_TYPE", "docker");

        try {
            envMap.put("COMPUTERNAME", "xxx");
            assertEquals("xxx", systemHelper.getHostname());
        } finally {
            envMap.remove("COMPUTERNAME");
        }
        try {
            envMap.put("HOSTNAME", "yyy");
            assertEquals("yyy", systemHelper.getHostname());
        } finally {
            envMap.remove("HOSTNAME");
        }
    }