[jboss-jira] [JBoss JIRA] (WFLY-7280) getSession() Always Creating HttpSession Problem

[kin zhu (JIRA)]

kin zhu created WFLY-7280:
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             Summary: getSession()  Always Creating HttpSession Problem
                 Key: WFLY-7280
                 URL: https://issues.jboss.org/browse/WFLY-7280
             Project: WildFly
          Issue Type: Bug
          Components: Web (Undertow)
    Affects Versions: 10.1.0.Final
         Environment: jdk8u102,  win7x64,  wildfly-servlet-10.1.0.Final.tar.gz
            Reporter: kin zhu
            Assignee: Stuart Douglas


I have a login application called cas.war.  I store the captcha code in session. This application has been running smoothly in JBoss7 and Tomcat7. But when I tried to migrate to wildfly10, I found the captcha code will always be null.  I dug a little deeper, and found out that the server is creating new session each time I post a request(the JSESSIONID cookie changes on every request).  I traced the code and pinned down the problem on this location (as of undertow-servlet-1.4.0.Final-sources.jar ) :
{color:#f6c342}io.undertow.servlet.spec.ServletContextImpl.java,  method  getSession:{color}


{code:java}
public HttpSessionImpl getSession(final ServletContextImpl originalServletContext, final HttpServerExchange exchange, boolean create) {
        SessionConfig c = originalServletContext.getSessionConfig();
        HttpSessionImpl httpSession = exchange.getAttachment(sessionAttachmentKey);
{code}

while  
sessionAttachmentKey =  {color:#f6c342}io.undertow.util.SimpleAttachmentKey<io.undertow.servlet.spec.HttpSessionImpl>{color}
		
the exchange.attachments map will only contain one such key:   {color:#f6c342}io.undertow.util.SimpleAttachmentKey<io.undertow.server.session.InMemorySessionManager$SessionImpl>{color}

thus the server will create new session once  request.getSession() is called, regardless one session exist or not.

And please have a look at the relate class InMemorySessionManager  too.








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