public boolean isUnknown() {
        return this.major == 0 && this.minor == 0 && this.patch == 0;
    }
@Test
    public void testIsUnknown() {
        assertTrue(MemberVersion.UNKNOWN.isUnknown());
        assertFalse(MemberVersion.of(VERSION_3_8_SNAPSHOT_STRING).isUnknown());
        assertFalse(MemberVersion.of(VERSION_3_8_1_RC1_STRING).isUnknown());
        assertFalse(MemberVersion.of(VERSION_3_8_1_BETA_1_STRING).isUnknown());
        assertFalse(MemberVersion.of(VERSION_3_8_BETA_2_STRING).isUnknown());
        assertFalse(MemberVersion.of(VERSION_3_8_2_STRING).isUnknown());
    }