Please, it is very important for me to solve this problem, i need it for my last exam, but i dont understand why he found some methods and he dont find another in the same file :(
I dont now what else i should do :/
The null pointer exception is not actually related to the unknown source - unknown source means that the JVM could not report the line number and details about where the error occurred in the code of Telefony.beany.Osoba.UpravOsobu. It probably means it was going through introspection so doesn't have direct access to code information.
The important error is that a null pointer exception occurred so you probably are passing a null to the method or the value you pass generates a reference to null. Maybe the datasource name is not found in JNDI by that reference, and so on.
My network connection is flaky so someone else will have to help with the rest of this.
Jon thx for your time, i solve the problem!
thx a lot