[REEF-774] Remove serializable interface from Tasklet

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.12
• Fix Version/s: 0.13
• Component/s: Vortex
• Assignee: Dongjoon Hyun
• Reporter: Dongjoon Hyun
• Created: 22/Sep/15 02:09
• Updated: 23/Sep/15 06:01
• Resolved: 22/Sep/15 06:36

Description

Currently, REEF-768 fixed all high-priority warnings of REEF except one.
(https://issues.apache.org/jira/browse/REEF-768)

This issue address that. More specifically, `Tasklet` class is implementing serializable but its field, `VortexFuture`, is not. Up to now, it is because `CountDownLatch` field of `VortexFuture` is not serializable.

After discussion with johnyangk, we should remove 'serialization' implementation from `Tasklet` since `Tasklet` is not designed for serialization.

Issue Links

• links to: Link to PR