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After Applying The Q1 CPU Security Patch 28840561, Login Page Throws 500 Internal Server Error (Doc ID 2516505.1)

Last updated on JANUARY 16, 2020

Applies to:

Oracle Application Object Library - Version 12.1.3 to 12.1.3 [Release 12.1]
Information in this document applies to any platform.


On 12.1.3 version, Advanced Configurations

After applying the Q1 CPU Security patch 28840561, External tier login fail with below error. This is happening only when Appl_Top & Tech_St file system are read only.  If enable write on filesystem it works fine.

500 Internal Server

OracleJSP:An error occurred. Consult your application/system administrator for support. Programmers should consider setting the init-param debug_mode to "true" to see the complete exception message

The issue can be reproduced at will with the following steps:
1. Access E business Suite URL


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