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User is experiencing this issue, in rhel6 and rhel7,
resolved by patches in:

JDK-8162941
Publishing two webservices on same port fails with "java.net.BindException: Address already in use"
https://bugs.openjdk.java.net/browse/JDK-8162941

https://bugs.openjdk.java.net/projects/JDK/versions/18805

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0872