Confluence 2.x uses OSCache 2.1.1.

When deployed on weblogic 8.1, oscache blocks when a request is made to retrieve the main-css.action. This was not a problem with Confluence 1.4.4, which used OSCache 2.0.2-22Jan04.

We need to work out what the root cause of this problem is.

For anyone experiencing this problem, the short term workaround is to remove the use of the oscache, by removing the following entry from the WEB-INF/web.xml file:

<filter>
<filter-name>CacheFilter</filter-name>
<filter-class>com.opensymphony.oscache.web.filter.CacheFilter</filter-class>
</filter>