RFR: JDK-8177763: Getting an hprof dump via jcmd could benefit from stronger option checking

[Gary Adams]

This message may have been lost in the vacation email backlog, so I'm
sending it again.

On 8/9/18, 2:19 PM, Gary Adams wrote:
> Thee are several reported problems using jcmd for obtaining heap dumps.
>
> Some users are confused by the positional argument for a filename
> when a similar jfr command uses "key=value" syntax.
>
> Some users are confused by the basic nature of the command, where the jvm
> executing the heap dump is running in a different current directory than
> the jcmd itself.
>
> This is a proposed fix to report the current directory and the filename
> when the heap dump is successfully written or if an error occurs. There
> is also a proposed fix to handle the case when the user provided
> "key=value" inputs. If the key matches the argument name, then the
> user intended the value to be used.
>
>   Issue: https://bugs.openjdk.java.net/browse/JDK-8177763
>   Webrev: http://cr.openjdk.java.net/~gadams/8177763/webrev.00/
>
>