フィードバックを送信
legacy-knowledge-base
公開されました Jul. 2, 2025

Liferayの既存ユーザーがSAMLでログインできない。"Screen name x must not be duplicate ... "というエラーが発生する。

written-by

Emma Liu

How To articles are not official guidelines or officially supported documentation. They are community-contributed content and may not always reflect the latest updates to Liferay DXP. We welcome your feedback to improve How To articles!

While we make every effort to ensure this Knowledge Base is accurate, it may not always reflect the most recent updates or official guidelines.We appreciate your understanding and encourage you to reach out with any feedback or concerns.

legacy-article

learn-legacy-article-disclaimer-text

問題

  • Liferay（サービスプロバイダ）にユーザーが存在する場合、スクリーン名が重複しているため、SAMLでログインできないERROR。
2019-04-23 04:29:45.758 ERROR [http-nio-18080-exec-7][BaseSamlStrutsAction:58] Screen name ccc must not be duplicate but is already used by user 34863
  • com.liferay.saml.opensaml.integration.internal.resolver.DefaultUserResolver " のログレベルを "DEBUG" に変更すると、DEBUGログは以下のようになります：
2019-04-23 04:29:12.607 DEBUG [http-nio-18080-exec-7][DefaultUserResolver:78] Resolving user with name ID format urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress and value ccc@liferay.com
2019-04-23 04:29:12.608 DEBUG [http-nio-18080-exec-7][DefaultUserResolver:354] Importing user with identifier ccc@liferay.com of type emailAddress
2019-04-23 04:29:12.608 DEBUG [http-nio-18080-exec-7][DefaultUserResolver:205] Attributes mapping for samlidp emailAddress=emailAddress_screenName=screenName [Sanitized]
2019-04-23 04:29:31.721 DEBUG [http-nio-18080-exec-7][DefaultUserResolver:285] com.liferay.portal.kernel.exception.NoSuchUserException: No User exists with the key {companyId=20099, emailAddress=cccd@liferay.com}
com.liferay.portal.kernel.exception.NoSuchUserException: No User exists with the key {companyId=20099, emailAddress=cccd@liferay.com}
 at com.liferay.portal.service.persistence.impl.UserPersistenceImpl.findByC_EA(UserPersistenceImpl.java:4747)
 at com.liferay.portal.service.impl.UserLocalServiceImpl.getUserByEmailAddress(UserLocalServiceImpl.java:2815)
 at sun.reflect.GeneratedMethodAccessor713.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:498)
 at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:66)
 at com.sun.proxy.$Proxy607.getUserByEmailAddress(Unknown Source)
 at com.liferay.portal.kernel.service.UserLocalServiceWrapper.getUserByEmailAddress(UserLocalServiceWrapper.java:1832)
 at sun.reflect.GeneratedMethodAccessor713.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:498)
 at com.liferay.portal.kernel.bean.ClassLoaderBeanHandler.invoke(ClassLoaderBeanHandler.java:66)
 at com.sun.proxy.$Proxy608.getUserByEmailAddress(Unknown Source)
 at sun.reflect.GeneratedMethodAccessor713.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:498)
 at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:153)
 at com.liferay.portal.spring.transaction.DefaultTransactionExecutor._execute(DefaultTransactionExecutor.java:203)
 at com.liferay.portal.spring.transaction.DefaultTransactionExecutor.execute(DefaultTransactionExecutor.java:94)
 at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:113)
 at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:130)
 at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:55)
 at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:130)
 at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:125)
 at com.sun.proxy.$Proxy42.getUserByEmailAddress(Unknown Source)
 at com.liferay.saml.opensaml.integration.internal.resolver.DefaultUserResolver.getUser(DefaultUserResolver.java:264)
 at com.liferay.saml.opensaml.integration.internal.resolver.DefaultUserResolver.importUser(DefaultUserResolver.java:362)
 at com.liferay.saml.opensaml.integration.internal.resolver.DefaultUserResolver.resolveUser(DefaultUserResolver.java:99)
 at com.liferay.saml.opensaml.integration.internal.profile.WebSsoProfileImpl.doProcessResponse(WebSsoProfileImpl.java:630)
 at com.liferay.saml.opensaml.integration.internal.profile.WebSsoProfileImpl.processResponse(WebSsoProfileImpl.java:170)
 at com.liferay.saml.web.internal.portlet.action.AssertionConsumerServiceAction.doExecute(AssertionConsumerServiceAction.java:59)
 at com.liferay.saml.web.internal.portlet.action.BaseSamlStrutsAction.execute(BaseSamlStrutsAction.java:51)
 at com.liferay.portal.kernel.struts.BaseStrutsAction.execute(BaseStrutsAction.java:39)
 at com.liferay.portal.struts.ActionAdapter.execute(ActionAdapter.java:50)
 at com.liferay.portal.struts.PortalRequestProcessor._processActionPerform(PortalRequestProcessor.java:715)
 at com.liferay.portal.struts.PortalRequestProcessor._process(PortalRequestProcessor.java:655)
 at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:194)
 at com.liferay.portal.servlet.MainServlet.process(MainServlet.java:1066)
 at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
 at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:597)
 at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:574)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:119)
 at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
 at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:103)
 at com.liferay.portal.apio.internal.architect.servlet.filter.APIDocumentationFilter.processFilter(APIDocumentationFilter.java:74)
 at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
 at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
 at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:340)
 at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
 at com.liferay.portal.servlet.filters.password.modified.PasswordModifiedFilter.processFilter(PasswordModifiedFilter.java:58)
 at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
 at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
 at com.liferay.portal.servlet.filters.secure.BaseAuthFilter.processFilter(BaseAuthFilter.java:340)
 at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
 at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
 at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:88)
 at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
 at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
 at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:263)
 at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
 at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:144)
 at com.liferay.portal.monitoring.internal.servlet.filter.MonitoringFilter.processFilter(MonitoringFilter.java:178)
 at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
 at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
 at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
 at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
 at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:389)
 at com.liferay.portal.servlet.filters.urlrewrite.UrlRewriteFilter.processFilter(UrlRewriteFilter.java:65)
 at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:49)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:207)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:112)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:168)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:168)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:188)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:96)
 at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:101)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
 at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
 at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:651)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
 at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:407)
 at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
 at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754)
 at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376)
 at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
 at java.lang.Thread.run(Thread.java:748)
2019-04-23 04:29:45.757 DEBUG [http-nio-18080-exec-7][DefaultUserResolver:135] Adding user with attributes map {firstName=[ccc], lastName=[ccc], emailAddress=[ccc@liferay.com], screenName=[ccc]}
2019-04-23 04:29:45.758 ERROR [http-nio-18080-exec-7][BaseSamlStrutsAction:58] Screen name ccc must not be duplicate but is already used by user 34863

環境

  • Liferay DXP 7.1

解決策

  • よくある原因として、複数のユーザーが同じスクリーンネームを共有し、異なる電子メールアドレスを使用していることが挙げられます。
  • これを解決するためのオプション：
    • 両方のユーザーが必要かどうかを再確認し、無効なユーザーを削除します。
    • 両方のユーザーが必要な場合は、以下のプロパティを有効にして、ユーザーのスクリーン名を自動生成することを検討してください： 
       #

       # Set this to true to always autogenerate user screen names even if the user

       # gives a specific user screen name. If this is set to true, the LDAP

       # importer will fetch users by their email address even if the property

       # "company.security.auth.type" is set to screenName.

       #

       # Env: LIFERAY_USERS_PERIOD_SCREEN_PERIOD_NAME_PERIOD_ALWAYS_PERIOD_AUTOGENERATE

       #

       users.screen.name.always.autogenerate=true
did-this-article-resolve-your-issue
legacy-knowledge-base
did-this-article-resolve-your-issue