need to focus on java performance?

[Gary Benson]

Bryce McKinlay wrote:
> David Daney wrote:
> > I imagine that most of the stack traces are needed for security
> > checks, and not exceptions.
> 
> Most applications (excluding applets) do not use security managers,
> and thus do not perform many security checks...

Not strictly true.  Tomcat uses one (to protect against compromised or
malicious servlets).  JOnAS uses one (to protect against malicious
downloaded RMI code).  Ant uses one these days (to stop stuff executed
in-VM from calling System.exit()).  Eclipse uses one (though I don't
know why).  More and more important apps are using security managers
as people find out about them.

Cheers,
Gary