Non-thread safe code in PortalSiteRequestContextImpl.java
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Key: JS2-619
URL: http://issues.apache.org/jira/browse/JS2-619
Project: Jetspeed 2
Issue Type: Bug
Components: Components Core
Affects Versions: 2.1-dev
Environment: Any environment.
Reporter: Woonsan Ko
Priority: Minor
Every header.vm calls $site.getMenu(...) to retreive menus for a folder.
And the class, named
'org.apache.jetspeed.portalsite.impl.PortalSiteRequestContextImpl', manages a
set and a map to store and query portlet definition names and menus.
However, because those are instantiated as a HashSet and as a HashMap, JS2 can
throw ConcurrentModificationException when portlet definitions and menus are to
be cached.
This exception can be observed in the following case:
- For some reason, user can request twice for the same folder.
- For some reason, a developer can design the pages to call header.vm
simultaneously.
(Actually these situations are not usual and it may not occur after first visit
for a folder, but it can occur.)
Therefore, those are to be synchronized.
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