Parameter reflection: parameters with "" as their name

Jonathan Gibbons jonathan.gibbons at
Thu Jan 24 19:40:29 UTC 2013

On 01/24/2013 11:33 AM, Eric McCorkle wrote:
> The current version of the spec for parameter reflection, found here:
> states that if a parameter has no name, then the reflection API should
> synthesize a name of the form "argN", where N is the index of the
> parameter.  It also states that if a MethodParameters attribute has a
> name index of 0, then it indicates a parameter with no name.
> The question I have is, what if a MethodParameters attribute indicates a
> name of "" (meaning, the empty string)?  Does this count as a valid
> name, or should it be treated as a parameter with no name?
> It is probably also worth thinking about invalid parameter names, for
> example "10", "_", "+", " ", other whitespace characters, and so on.

What about name clashes, such as if I choose to name my args "arg3, 
arg2, arg1, arg0"

Are valid parameter names JVMS identifiers or JLS identifiers?

-- Jon

More information about the core-libs-dev mailing list