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Mantis - Resin
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| ID: | Category: | Severity: | Reproducibility: | Date Submitted: | Last Update: |
| 5252 | minor | have not tried | 10-22-12 04:01 | 10-22-12 10:08 | |
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| Reporter: | harsha | Platform: | |||
| Assigned To: | ferg | OS: | |||
| Priority: | normal | OS Version: | |||
| Status: | closed | Product Version: | 4.0.31 | ||
| Product Build: | Resolution: | fixed | |||
| Projection: | none | ||||
| ETA: | none | Fixed in Version: | 4.0.33 | ||
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| 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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