# Keycloak quarkus : KeycloakProcessor NoSuchmethoderror

**URL:** <https://forum.keycloak.org/t/keycloak-quarkus-keycloakprocessor-nosuchmethoderror/22022>\
**Category:** Miscellanaeous\
**Created:** [May 9, 2023, 3:34pm UTC](https://forum.keycloak.org/t/keycloak-quarkus-keycloakprocessor-nosuchmethoderror/22022 "2023-05-09T15:34:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rvanderboom](https://yyz2.discourse-cdn.com/free1/user_avatar/forum.keycloak.org/rvanderboom/32/1463_2.png) [@rvanderboom](https://forum.keycloak.org/u/rvanderboom)\
**Post date:** [May 9, 2023, 3:34pm UTC](https://forum.keycloak.org/t/keycloak-quarkus-keycloakprocessor-nosuchmethoderror/22022/1 "2023-05-09T15:34:20Z")

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Hey,

hope someone can help with the below error… We getting this when building the lastest keycloak quarkus (21.1.1) with the quarkus maven plugin.

The same error also happens when starting the KeycloakMain within intellij (which does give a help menu but the keycloak /auth url gives same error.

Do not understand the issue since the method is there, we do not have different class versions, etc.

Build step org.keycloak.quarkus.deployment.KeycloakProcessor#initializeFilter threw an exception: java.lang.NoSuchMethodError: ‘java.util.concurrent.ExecutorService io.quarkus.deployment.builditem.ExecutorBuildItem.getExecutorProxy()’

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**Author:** ![rvanderboom](https://yyz2.discourse-cdn.com/free1/user_avatar/forum.keycloak.org/rvanderboom/32/1463_2.png) [@rvanderboom](https://forum.keycloak.org/u/rvanderboom)\
**Post date:** [June 13, 2023, 3:17pm UTC](https://forum.keycloak.org/t/keycloak-quarkus-keycloakprocessor-nosuchmethoderror/22022/2 "2023-06-13T15:17:38Z")

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it seams when writing a small QarkusTest, with the quarkus-junit 5 dependencies, the same error is thrown… Think somehow keycloak is adding wrong version dependency somewhere…