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https://issues.apache.org/struts/browse/WW-2507?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Don Brown resolved WW-2507.
---------------------------
Resolution: Fixed
Assignee: Rainer Hermanns
Resolving this issue as the original problem has been fixed. Please open a new
ticket if you feel session invalidation should also be addressed.
> I18nInterceptor's intercept method is not thread safe
> -----------------------------------------------------
>
> Key: WW-2507
> URL: https://issues.apache.org/struts/browse/WW-2507
> Project: Struts 2
> Issue Type: Bug
> Components: Core Interceptors
> Affects Versions: 2.0.11
> Reporter: Bob Tiernay
> Assignee: Rainer Hermanns
> Fix For: 2.1.3
>
>
> The following excerpt from I18nInterceptor's intercept method is not thread
> safe:
> //save it in session
> Map session = invocation.getInvocationContext().getSession(); <---
> start of atomic operation
> if (session != null) {
> if (requested_locale != null) {
> Locale locale = (requested_locale instanceof Locale) ?
> (Locale) requested_locale :
> LocalizedTextUtil.localeFromString(requested_locale.toString(), null);
> if (log.isDebugEnabled()) {
> log.debug("store locale=" + locale);
> }
> if (locale != null) {
> session.put(attributeName, locale);
> }
> }
> //set locale for action
> Object locale = session.get(attributeName); <--- session may no
> longer exist due to concurrecy.
> if (locale != null && locale instanceof Locale) {
> if (log.isDebugEnabled()) {
> log.debug("apply locale=" + locale);
> }
> saveLocale(invocation, (Locale)locale);
> }
> }
> Between the calls of:
> 1. Map session = invocation.getInvocationContext().getSession(); , and
> 2. Object locale = session.get(attributeName);
> the session may have been invalidated. In my particular application, this
> was indeed the case. This causes an invalid session exception to be raised.
> The recommended handling would be to synchronize this portion of the method.
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