Problem loading java datasource OBIEE 12.2.1.3

You are trying to load Java Datasources... with OBIEE 12.2.1.3 And get Error 404 page not found.

You see the same problem with http://YOURSERVER:9502/obiee/javads?status.

I had this problem on Windows server. probably exists on other platforms as well.

Solution:

Logon to the weblogic console (in my case http://MYSERVER:9500/console)
Select Deployments

Find there obi.datasrc.server

Find the Target tab,
Press Lock & Edit
enable bi_cluster (leave the bi_internal_virtualhost1 for next step)

Save and
Activate Changes:

Press Lock & Edit again
disable the bi_internal_virtualhost1
Save and
Activate Changes again.

(I got an error trying to do both in one step).



Now it should work: