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NullPointerException on validating token with ProcessJWT activit



User has configured an authentication service which use the out-of-the-box ProcessJWT activity to validate the signed JWT token received.

NullPointerException while validating token using the ProcessJWT activity.

Error Messages

Unable to process the Json Web Token 
    at com.pega.pegarules.session.external.authorization.KeystoreData.addPublicKeyCertificatesToAliasMap( ~[prenginext.jar:?] 
    at com.pega.pegarules.session.external.authorization.KeystoreData.<init>( ~[prenginext.jar:?] 
    at com.pega.pegarules.session.internal.authorization.KeyStoreCacheImpl.put( ~[prprivate.jar:?] ...

Steps to Reproduce

  1. Log in to the application
  2. Create a custom type authentication service
  3. In the Authentication activity, call the pxProcessJWT activity to validate the token received

Root Cause

A defect in Pegasystems’ code or rules.


Apply HFix-59110.


Published January 6, 2020 - Updated December 2, 2021

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