RFR: 8153761: JShell: Completion -- Show parameter names if possible

[Robert Field]

Looks good.

I notice that the SourceCache initialization (including findSources()) 
gets run every time, even if all the real parameter names are in the 
classfile.  I don't know how significant that is.

-Robert


On 05/05/2016 05:14 AM, Jan Lahoda wrote:
> Hi,
>
> JBS: https://bugs.openjdk.java.net/browse/JDK-8153761
>
> Webrev:
> http://cr.openjdk.java.net/~jlahoda/8153761/webrev.00/index.html
>
> Currently, when showing the synopsis of methods (Shift-<tab>), 
> synthesised, not real, parameter names are shown. This patches 
> improves that by:
> -reading the parameter names from the classfiles if they are available 
> (by using "-XDsave-parameter-names=true")
> -storing parameter names when compiling user's snippets (by using 
> "-parameters")
> -looking for src.zip in the JDK installation if the parameter names 
> are not available in the classfiles, and reading the parameter names 
> from the sources.
>
> Comments are welcome!
>
> Jan