During page transition wicket used to encode an '../../tisch' which results in an exception:
Caused by: java.lang.IllegalArgumentException
The transition (within an ajax call) :
IMHO the double parent ".." is correct
There exists already an bugzilla issue created but rejected as invalid https://issues.apache.org/bugzilla/show_bug.cgi?id=53469.
If the wicket code works as expected there must be an error in the tomcat.
Maybe the wicket development team has closer access to the tomcat developers