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ID | Category | Severity | Reproducibility | Date Submitted | Last Update | ||||
0005252 | [Resin] | minor | have not tried | 10-22-12 04:01 | 10-22-12 10:08 | ||||
Reporter | harsha | View Status | public | ||||||
Assigned To | ferg | ||||||||
Priority | normal | Resolution | fixed | Platform | |||||
Status | closed | OS | |||||||
Projection | none | OS Version | |||||||
ETA | none | Fixed in Version | 4.0.33 | Product Version | 4.0.31 | ||||
Product Build | |||||||||
Summary | 0005252: NPE during getSession() | ||||||||
Description |
We've bumped into a NPE when trying to access the Session for a given request. The relevant section of the stacktrace is given. The simple fix would be to check to see if the request is non-null inside getCookies(). java.lang.NullPointerException at com.caucho.server.http.HttpServletRequestImpl.getCookies(HttpServletRequestImpl.java:908) at com.caucho.server.http.HttpServletRequestImpl.findCookie(HttpServletRequestImpl.java:955) at com.caucho.server.http.HttpServletRequestImpl.getCookie(HttpServletRequestImpl.java:950) at com.caucho.server.http.HttpServletRequestImpl.findSessionIdFromCookie(HttpServletRequestImpl.java:1019) at com.caucho.server.http.HttpServletRequestImpl.getRequestedSessionId(HttpServletRequestImpl.java:987) at com.caucho.server.http.HttpServletRequestImpl.getSessionId(HttpServletRequestImpl.java:1043) at com.caucho.server.http.AbstractCauchoRequest.createSession(AbstractCauchoRequest.java:684) at com.caucho.server.http.AbstractCauchoRequest.getSession(AbstractCauchoRequest.java:630) As an aside, I think this is a race condition due to: - The caucho layer tears down a session at some point and an event is fired to let the application layer know of a session tear down. - Our application layer has a reaper-thread to detect timed-out sessions. - I think the caucho layer has invalidated the session and then fired the session-invalidated event, but we have tried to access that session before we have received that invalidation event. |
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