In the query page, cannot save with 'save query' button if results per page is 200.
Error message is: Save Request Failed: Error Type = error, HTTP Status Text = "Internal servlet error ".
if you change the 'results per page' value to 100, now the query can be saved (Maybe some value is not bounded on first step.)
Once a query is stored, it can be replaced even with per page 200.
Error occurs only with new name.
in my case : refresh query page. Verify that results per page is 200. give a new name. save query -> error.
Windows 7 - Tomcat