Below are the steps for applying JVM patch in oracle 12c database.


Steps 1 : Download the respective patch from oracle support  and unzip it in the server.


cd 21555660

Steps 2 : check the conflict against ORACLE_HOME



Step 3: Shutdown all databases and listeners running from the ORACLE_HOME,where we are applying patch.


STEP 4 :  Run optach apply command


Step 5 : Now start the database in upgrade mode :


step 6 : Run the post patch tool using the new datapatch tool .


Step 7 : Start the database in normal mode and check the registry.