RFR 8173893: JShell: reduce memory leaks

[Jan Lahoda]

Seems good to me.

Jan

On 7.2.2017 23:02, Robert Field wrote:
> Thanks Jan for tracking down the leaks!!!
>
> Please review...
>
> Bug:
>
>      https://bugs.openjdk.java.net/browse/JDK-8173893
>
> Webrev:
>
>      http://cr.openjdk.java.net/~rfield/8173893v0.webrev/
>
> Thanks,
> Robert
>
> :y
>