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OAM 12c OAuth: JWT Bearer Grant Handler Flow Results In Java.lang.NullPointerException (Doc ID 2537701.1)

Last updated on SEPTEMBER 07, 2023

Applies to:

Oracle Access Manager - Version 12.2.1.3.180904 and later
Information in this document applies to any platform.
Oracle is not responsible for instructions/information from 3rd party sites that may be contained in this KM note

Symptoms

Customer is doing JWT Bearer Grant Flow to get OAuth Access Token from JWT Assertion

This is the JWT Bearer request:

POST /oauth2/rest/token HTTP/1.1
Host: login-tst.atradiusnet.com:443
X-OAUTH-IDENTITY-DOMAIN-NAME: SIT_JET_WebGateDomain
:
Authorization: Basic <ENCRYPTED_PASSWORD>
cache-control: no-cache
Postman-Token: 527e5b8c-2c3b-40bc-a1c1-76848305a5f0
grant_type=JWT_BEARERscope=SIT_JET_OIDCWebGateRS.openidassertion=<OPENID_ASSERTION>

Which results in:

{
"error": "invalid_grant",
"error_description": "Invalid Request"
}

… and the error from OAM is :

[SRC_CLASS: oracle.security.am.oauth2.grant.handler.JWTBearerGrantHandler] [SRC_METHOD: processGrant] Exception occurred during JWT Bearer Grant handler flow.[[java.lang.NullPointerException

Cause

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In this Document
Symptoms
Cause
Solution
References


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