Cannot Start Weblogic Server With "java.lang.NumberFormatException: For input string: %.log" Error

(Doc ID 1967839.1)

Last updated on NOVEMBER 02, 2017

Applies to:

Oracle WebLogic Server - Version 12.1.3.0.0 to 12.2.1.0.0 [Release 12c]
Information in this document applies to any platform.

Symptoms

With the log filename set to %yyyy%_%MM%_Ý% and Rotation Type set to none, WebLogic Server fails to start with the following exception:

Changes

 

Cause

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