As discussed in BIGTOP-1993 Groovy runtime provided by bigtop-groovy packages needs to be moved forward to the latest version of the SDK.
Bump groovy to 2.4.4 in the development toolchain
built and validated debian file - the runtime environment seems to be working as expected.
This is great, now using `apache groovy` ! +1 (untested but looks reasonable)
Committed and pushed. Thanks for the review Jay!