java.lang.IllegalArgumentException: The request attribute [javax.portlet.userinfo] is reserved and can not be set by portlets.

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java.lang.IllegalArgumentException: The request attribute [javax.portlet.userinfo] is reserved and can not be set by portlets.
at com.bea.portlet.container.HttpServletRequestImpl.setAttribute(HttpServletRequestImpl.java:198)
at org.springframework.web.servlet.DispatcherServlet.restoreAttributesAfterInclude(DispatcherServlet.java:1158)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:721)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:647)

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