EBS 12.2.6 login Page is taking long time to load

EBS Login Performance Issues:

After providing username and password in the login page of EBS 12.2.6, loading home page is taking very long time to load.

weblogic console url shows that one of the oacore servers, oacore_server2 is in WARNING state due to Max number of Stuck Threads reached.

Error Message from oacore log
=============================

<Error> <WebLogicServer> <BEA-000337> <[STUCK] ExecuteThread: '16' for queue: 'weblogic.kernel.Default (self-tuning)' has been busy for "605" seconds working on the request "Workmanager: default, Version: 0, Scheduled=true, Started=true, Started time: 605929 ms
[
GET /OA_HTML/OA.jsp?page=/oracle/apps/per/perimage/webui/PerImgViewPG&transactionid=82152123&language_code=US&pCalledFrom=PERWSIMG&OAMC=N&oas=Wnrjc-sK-Ns6nz5o7H7HIg..&pPersonId=16520&payLegislationCode=AE&CallFromForm='Y' HTTP/1.1
Accept: */*
Accept-Language: en-US
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E)
Accept-Encoding: gzip, deflate
Cookie: oracle.uix=0^^GMT+4:00^p; treemenu1=0; JSESSIONID=tg0hURm_tL89fEex9hDrVrvC1rLBjpTn3fc2pZ89o7Hpb7jR7gVi!222603901; JsessionIDForms=Lh0hURqNRRpfmiTouQ_0kF2MiYYn5x8j8cW5AhjSBMEyOEfvp1oa!-851768; DPRPROD=l6hjdVQuX3p1xvWrRtPjEW8SAj
ECID-Context: 1.005NsDH9rp8FCC0_zxo2yW0002km000083;kXjE
Connection: Keep-Alive
X-Forwarded-For: 10.11.32.120
Proxy-Client-IP: 10.11.32.120
X-WebLogic-KeepAliveSecs: 30
X-WebLogic-Force-JVMID: 222603901

]", which is more than the configured time (StuckThreadMaxTime) of "600" seconds. Stack trace:
        java.net.SocketInputStream.socketRead0(Native Method)
        java.net.SocketInputStream.read(SocketInputStream.java:152)
        java.net.SocketInputStream.read(SocketInputStream.java:122)
        oracle.net.nt.MetricsEnabledInputStream.read(TcpNTAdapter.java:730)



Solution1
=====

Temporary workaround is to Restart the oacore servers to release the stuck threads

Solution2
========

1. Increase the value of paramter "StuckThreadMaxTime" TO 3600 Seconds from the weblogic Console.

Log in to WebLogic console 

Click on the Admin server >> Click on the Configuration tab >> Tuning tab and set the below values