Weblogic by default doesnt validate ssl certificates with wildcard entries. i.e. with cn = *.example.com . The impact of this is any ssl handshake which involves these kind of certificates are by default rejected.

A clean resolution for this is to use custom hostname verifier and point the same to use the class

weblogic.security.utils.SSLWLSWildcardHostnameVerifier

To make this change,

1. Launch WLS console
2. Click on Environment -> Servers on your left
   
3. Select Admin Server
   
4. Then go to SSL tab
5. Lock & Edit
6. Scroll down and expand advanced section
7. Here change Hostname verification entry to Custom Hostname Verifier
8. Below in Custom Hostname verifier enter "weblogic.security.utils.SSLWLSWildcardHostnameVerifier"
9. Restart weblogic