[jboss-jira] [JBoss JIRA] (ELY-1475) Empty username for FormAuthenticationMechanism causes IllegalArgumentException

Empty username for FormAuthenticationMechanism causes IllegalArgumentException ------------------------------------------------------------------------------ Key: ELY-1475 URL: https://issues.jboss.org/browse/ELY-1475 Project: WildFly Elytron Issue Type: Bug Affects Versions: 1.2.0.Beta11 Reporter: Ondrej Lukas Assignee: Ilia Vassilev Priority: Major Fix For: 1.2.0.Beta12 In case when empty username is passed to FormAuthenticationMechanism.attemptAuthentication then IllegalArgumentException is thrown from constructor of NameCallback. This happens in cases when form is sent with empty value for j_username. See exception: {code} ERROR [io.undertow.request] (default task-18) UT005023: Exception handling request to /depForm/j_security_check: java.lang.IllegalArgumentException at javax.security.auth.callback.NameCallback.<init>(NameCallback.java:90) at org.wildfly.security.http.impl.UsernamePasswordAuthenticationMechanism.authenticate(UsernamePasswordAuthenticationMechanism.java:60) at org.wildfly.security.http.impl.FormAuthenticationMechanism.attemptAuthentication(FormAuthenticationMechanism.java:172) at org.wildfly.security.http.impl.FormAuthenticationMechanism.evaluateRequest(FormAuthenticationMechanism.java:106) at org.wildfly.security.http.util.SetMechanismInformationMechanismFactory$1.evaluateRequest(SetMechanismInformationMechanismFactory.java:114) at org.wildfly.security.http.util.SecurityIdentityServerMechanismFactory$1.evaluateRequest(SecurityIdentityServerMechanismFactory.java:77) at org.wildfly.security.http.HttpAuthenticator$AuthenticationExchange.authenticate(HttpAuthenticator.java:115) at org.wildfly.security.http.HttpAuthenticator$AuthenticationExchange.access$100(HttpAuthenticator.java:94) at org.wildfly.security.http.HttpAuthenticator.authenticate(HttpAuthenticator.java:78) at org.wildfly.elytron.web.undertow.server.SecurityContextImpl.authenticate(SecurityContextImpl.java:100) at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:55) at io.undertow.server.handlers.DisableCacheHandler.handleRequest(DisableCacheHandler.java:33) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:53) at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:59) at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:292) at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:81) at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:138) at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:272) at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:104) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:326) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:812) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) {code} It seems that [1] should also check {{username.length() == 0}}. [1] https://github.com/wildfly-security/wildfly-elytron/blob/32ff7c17965b3eca...