Error JWT / oauth cas 7.2.3

[Eric GALANT]

Hi, 

We have this error in the log and we use jwt token. We have generated jwt token with generate-jwt --subject login. When we iuse token, the authentification is ok but there are the error in log file :   

2025-06-12 08:27:46,698 WARN [org.apereo.cas.util.function.FunctionUtils] - <org.jooq.lambda.UncheckedException: org.jose4j.lang.JoseException: A JWS Compact Serialization must have exactly 3 parts separated by period ('.') characters
        AbstractCipherExecutor.java:verifySignature:188
        BaseStringCipherExecutor.java:lambda$verifyAndDecrypt$4:275
        FunctionUtils.java:lambda$doIf$3:110
        BaseStringCipherExecutor.java:verifyAndDecrypt:276
>
2025-06-12 08:27:46,699 WARN [org.apereo.cas.util.function.FunctionUtils] - <DecryptionException
        EncodingUtils.java:decryptJwtValue:480
        BaseStringCipherExecutor.java:verifyAndDecrypt:283
        BaseStringCipherExecutor.java:decode:129
        BaseStringCipherExecutor.java:decode:123
>
2025-06-12 08:27:46,699 ERROR [org.apereo.cas.authentication.DefaultAuthenticationManager] - <Authentication has failed. Credentials may be incorrect or CAS cannot find authentication handler that supports [TokenCredential(super=BasicIdentifiableCredential(id=eyJjdHkiOiJKV1QiLCJlbmMiOiJBMTkyQ0JDLUhTMzg0IiwiYWxnIjoiZGlyIn0......), service=AbstractWebApplicationService(id=https://ade.univ-brest.fr/direct/, originalUrl=https://ade.univ-brest.fr/direct/, artifactId=null, principal=null, source=service, tenant=null, loggedOutAlready=false, format=XML, attributes={headers={jakarta.servlet.http.HttpServletRequest.header-host=[cas.univ-brest.fr], jakarta.servlet.http.HttpServletRequest.header-user-agent=[curl/7.74.0], jakarta.servlet.http.HttpServletRequest.header-accept=[*/*], jakarta.servlet.http.HttpServletRequest.header-content-length=[447], jakarta.servlet.http.HttpServletRequest.header-content-type=[application/x-www-form-urlencoded]}, service=[https://ade.univ-brest.fr/direct/], httpRequest={jakarta.servlet.http.HttpServletRequest.httpMethod=[POST], jakarta.servlet.http.HttpServletRequest.requestURL=[https://cas.univ-brest.fr/cas/login], jakarta.servlet.http.HttpServletRequest.requestURI=[/cas/login], jakarta.servlet.http.HttpServletRequest.requestId=[5bdc2], jakarta.servlet.http.HttpServletRequest.contentType=[application/x-www-form-urlencoded], jakarta.servlet.http.HttpServletRequest.contextPath=[/cas], jakarta.servlet.http.HttpServletRequest.localeName=[cas.univ-brest.fr]}, token=****************]}))] of type [TokenCredential]. Examine the configuration to ensure a method of authentication is defined and analyze CAS logs at DEBUG level to trace the authentication event.>
2025-06-12 08:27:46,699 ERROR [org.apereo.cas.authentication.DefaultAuthenticationManager] - <[OAuth20AccessTokenAuthenticationHandler]: [1 errors, 0 successes / Unable to validate JWT signature]>

Thanks,

Eric