Usually above 3 steps are enough, but if the problem persists, then try change Java Security:
and set the "Exception Site List":
Pay the attention to "Exception Site List". I use the rules:
- not put the port number (allow all ports for applications)
- try add the hostname and IP address of your host. The resolving problems may take place here.
Be lucky !
Some days ago the new 1.8-51 Java was issued.
It works with the Exadata ILOM too (ILOM version 18.104.22.168.e):