I would believe you, except that it is a problem with every Java app I have supported, and there are people in this very thread defending it.

I do not want a stack trace unless I specifically request it. I am not a Java developer, 10 pages in less showing names of packages I don't even know what they are is not useful. It just muddies the water so that it's much harder to make sense of and spot the relevant line; assuming there is a line that actually states the error. I shouldn't need to know what all those packages are in order to figure out why Confluence crashed again or stopped sending emails.