Thoughts on adding getElementClass() method to StackTraceElement? (original) (raw)

Jeroen Frijters jeroen at sumatra.nl
Mon Jun 17 06:06:29 UTC 2013

Nick Williams wrote:

What if we also added a getStackFrames() method to Throwable? That would meet my needs but it would also satisfy what I'm observing is a desire to have a new API for this (StackFrame) instead of adding it to StackTraceElement. I'm very open to how it's implemented, as long as it satisfies my use case. :-)

The stack trace of a Throwable can be "filled in" on demand when getStackTrace() is called the first time, so that the overhead isn't incurred when creating and throwing the exception. Presumably, we would need to do something similar with getStackFrames(), especially since calling it would be less common. Thoughts on this?

Yes that is reasonable, but I'd add a static method to StackFrame instead. Something like StackFrame[] capture(Throwable).

Regards, Jeroen

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