This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
it can almost be everything, the description of your problem is insufficient. Is it a portlet application or a pure web app (I asume portlets, because you are posting in this forum)? If portlets, which environment? Can you provide at least a stack trace?
I guess it is a configuration error with missing or inappropriate libraries (just from the NoSuchMethodException).
Greetings from Hamburg, Stefan
Author of German LDAP-Book
Committer at Apache Directory Project