public static long getLong(String envName, long defaultValue) {
        long value = defaultValue;
        String envValue = System.getenv(envName);
        if (envValue != null) {
            try {
                value = Long.parseLong(envValue);
            } catch (NumberFormatException e) {

            }
        }
        return value;
    }
@Test
    public void getLong() {
        assertEquals(12345678901234567L, EnvUtil.getLong("myLong", 123L));
        assertEquals(987654321987654321L, EnvUtil.getLong("wrongLong", 987654321987654321L));
    }