engine API call error due to failure in jwt creation

[tbenr]

User reported this strange stack trace:

2023-09-29 14:51:36.274+02:00 | pool-4-thread-11 | ERROR | teku-event-log | Execution Client request failed. Make sure the Execution Client is online and can respond to requests.
java.util.ServiceConfigurationError: io.jsonwebtoken.io.Serializer: Error accessing configuration file
at java.util.ServiceLoader.fail(ServiceLoader.java:586) ~[?:?]
at java.util.ServiceLoader$LazyClassPathLookupIterator.parse(ServiceLoader.java:1180) ~[?:?]
at java.util.ServiceLoader$LazyClassPathLookupIterator.nextProviderClass(ServiceLoader.java:1213) ~[?:?]
at java.util.ServiceLoader$LazyClassPathLookupIterator.hasNextService(ServiceLoader.java:1228) ~[?:?]
at java.util.ServiceLoader$LazyClassPathLookupIterator.hasNext(ServiceLoader.java:1273) ~[?:?]
at java.util.ServiceLoader$2.hasNext(ServiceLoader.java:1309) ~[?:?]
at java.util.ServiceLoader$3.hasNext(ServiceLoader.java:1393) ~[?:?]
at io.jsonwebtoken.impl.lang.Services.loadFirst(Services.java:110) ~[jjwt-impl-0.11.5.jar:0.11.5]
at io.jsonwebtoken.impl.lang.Services.loadFirst(Services.java:100) ~[jjwt-impl-0.11.5.jar:0.11.5]
at io.jsonwebtoken.impl.lang.LegacyServices.loadFirst(LegacyServices.java:24) ~[jjwt-impl-0.11.5.jar:0.11.5]
at io.jsonwebtoken.impl.DefaultJwtBuilder.compact(DefaultJwtBuilder.java:291) ~[jjwt-impl-0.11.5.jar:0.11.5]
at tech.pegasys.teku.ethereum.executionclient.auth.TokenProvider.token(TokenProvider.java:38) ~[teku-ethereum-executionclient-23.9.1.jar:23.9.1]

[tbenr]

doing some reserch I found:

jwtk/jjwt#648

which then referces

• io.jsonwebtoken.CompressionCodec: Error reading configuration file jwtk/jjwt#648
• Cache java.util.ServiceLoader results jwtk/jjwt#752

seems like the fix is targeted to 0.12.0. An option would be to switch jwt library.