I was trying to deploy some of my company's applications on keycloak, and in one of them I got this error:
Caused by: java.lang.NullPointerException
at org.keycloak.subsystem.extension.KeycloakAdapterConfigDeploymentProcessor.deploy(KeycloakAdapterConfigDeploymentProcessor.java:73)
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:113) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final]
... 5 more
I went to investigate and I found that on line 73 of KeycloakAdapterConfigDeploymentProcessor there was this:
loginConfig.getAuthMethod().equalsIgnoreCase("KEYCLOAK")
and I did some digging and it happens that in this particular project, there is no auth-method identified on web.xml, so loginConfig.getAuthMethod returned null.
All I did was change the comparison to this:
"KEYCLOAK".equalsIgnoreCase(loginConfig.getAuthMethod())
And it all works. I don't know if this defines a problem in the scope of your project, but it would be good to inform you
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