[hibernate-dev] [HSEARCH] Remove 'preferIPv4Stack' validation

The app I work on needs to bind to ipv6 addresses and to communicate with other network nodes using ipv6. The library component that does this communication breaks if I set 'preferIPV4Stack=true'. I've had to remove the code that forces this from hibernate-search and hibernate-search-infinispan and maintain custom libraries in order to use infinispan. After doing so, everything works fine binding to an ipv6 multicast address. My environment is RHEL4 + JDK 1.6.0.7 + Hibernate Search 3.4.1. I've used jgroups on other applications without having to set preferIPV4Stack=true(apps that also use ipv6), with no issues other than needing to ensure that both mcast port, and mcast address are different per 'group'. Is there any reason to keep this validation in? I understand there are JDK issues with some OS environments where ipv6 won't work, and this probably saves a lot of troubleshooting time. Maybe something can be added to allow an override so the majority of applications are forced to use ipv4, but if someone really wants ipv6 they can override: '-Dforce.hibernate.search.ipv6=true'? ZK