Hi, thanks for your reply. Your article is for AEM 5.6 and newer versions of AEM and we are using CQ5.5 which has no Apache Oak. Any other suggestions? Best regardsJan

Hello Steve, thanks for your reply. I tried this, added the line "sling.bootdelegation.com.sun=com.sun.*" to the sling.properties file and restarted the CQ5.5 instance. The problem is still the same :-(.Any other suggestions? Best RegardsJan