I've found documentation at the Java site that documents using the args
array with the hotspot provider.
http://java.sun.com/javase/6/docs/technotes/guides/vm/dtrace.html

 

When I try it, I get the usual message that makes it look like you have
more than one args array type for one probe spec,
(hotspot4585:::method-entry matches an unstable set of probes), when it
actually means you have _no_ args arrays define for the probe spec.

 

You can only use the argn built-in variables with USDT providers, right?
Is the documentation written that way because there is a plan to change
that in the future?

 

Thanks,

Chip

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