How to apply EBS application patch in R12.1

ADPATCH in Oracle E-Business Suite

Check the location of adadmin and adpatch
$ which adadmin
$ which adpatch

Unzip the patch. And set the permission
$ unzip p30456216_R12.XDO.B_R12_GENERIC.zip
$ chmod 755 30456216

root@r12 ~]# su - oracle
$ sqlplus apps/*****
SQL> select * from AD_BUGS where bug_number='30456216';
no rows selected

SQL> select count(*) from dba_objects where status='INVALID';
SQL> select owner,object_name,object_type,status from dba_objects where status='INVALID';

Run the environment variable from application tier
$ cd /opt/oracle/VIS/apps/apps_st/appl/ or $APPL_TOP
$. ./APPSVIS_r12.en

Stop the application with adstpall.sh utility. Database and Listener should be up
./adstpall.sh

Enable the Maintenance Mode
/opt/oracle/VIS/apps/apps_st/appl/ad/12.0.0/bin
$./adadmin
Filename [admin.log]: patchnumber.log
provide system and apps password

Select an option 5 and press enter key to Change Maintenance Mode..
Then, Select an option 1 and press enter to Enable Maintenance Mode.
Press enter to continue.
Select option 3 and press Enter key to return to main menu .
Press enter to Exit AD Administration

Run autopatch (adpatch) from the patch directory by entering the following command:
$pwd
/opt/oracle/VIS/apps/apps_st/appl/ad/12.0.0/bin
$ ls -l adpatch
-rwxrwxrwx 1 oracle oinstall 9380 Mar 31  2009 adpatch
$./adpatch

After applying successfully patch disable the Maintenance mode as below.
Disabling options and choose as 5->2->3->6.

After disabling the Maintenance Mode, we need to start the services.
$ps –ef|grep applmgr |wc –l
Or
$ps –ef|grep FNDLIBR
Or
$ps –ef|grep FND*

SQL>Select count(*) from dba_objects where status='INVALID';
SQL> select owner,OBJECT_NAME,OBJECT_TYPE,STATUS from dba_objects where STATUS='INVALID';

If there is any new invalid objects then need to recompile.