Issue Summary

As per, https://confluence.atlassian.com/crowd/specifying-an-application-s-address-or-hostname-25788433.html, we can specify an application IP address, using a wildcard IP address range as part of Remote Address. Though this was working fine earlier but
post upgrade to 5.3, this is not working and failing with below error -

java.lang.IllegalArgumentException: Failed to parse address AA.*.*.*

This is reproducible on Data Center: yes

Steps to Reproduce

1. Create an application under Crowd
2. In the View Application screen, click the Remote Addresses tab and update the Address field to include IP address range such as

   172.16.*.*

Expected Results

Wildcard IP address range should work fine as shared under https://confluence.atlassian.com/crowd/specifying-an-application-s-address-or-hostname-25788433.html

Actual Results

The below exception is thrown in the atlassian-crowd.log file:

java.lang.IllegalArgumentException: Failed to parse address AA.*.*.*

Workaround

Replace the wildcard notations with CIDR subnet notation instead.