@Test
    public void testIsValidIpAddressIpv4WildcardRange() throws Exception
    {
        // Setup test fixture.
        final String input = "198.51.100.*";

        // Execute system under test.
        final boolean result = IpUtils.isValidIpAddress(input);

        // Verify results.
        assertFalse(result);
    }
Asserts that {@link IpUtils#isValidIpAddress(String)} does not identify an IPv4 Wildcard range value as a valid IP address.
xmppserver/src/test/java/org/jivesoftware/util/IpUtilsTest.java