Hi Snjezana.
Thanks for your answer.
I think that the bug described in https://bugs.eclipse.org/bugs/show_bug.cgi?id=282961 is different to mine because my problem is that URL is wrong before call the servlet mapping. The error in https://bugs.eclipse.org/bugs/show_bug.cgi?id=282961 talks about a problem with file system that it contains the report design. I think that it is not my problem.
Any idea?