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Starting WebLogic Server Hangs at HMAC Init Thread in Runnable State (Doc ID 2260631.1)

Last updated on SEPTEMBER 25, 2020

Applies to:

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


Occasionally, while starting WLS 12.2.1 server, it hangs and the thread dumps shows the following:


HMAC is hash-based message authentication code which you may have implemented for enhanced cryptographic features within the application or messaging.

In other words, this is not the issue if have a standard use of weblogic server and see it hanging for another reason. You must obtain the thread dump to see for sure.


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