[IGNITE-9742] Illegal change of DiscoveryCustomEvent in GridDhtPartitionsExchangeFuture#onDone

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.6
• Labels: discovery
• Assignee: Vyacheslav Daradur
• Reporter: Vyacheslav Daradur
• Created: 29/Sep/18 21:00
• Updated: 08/Oct/18 08:58
• Resolved: 08/Oct/18 08:58

Description

The following code is called in GridDhtPartitionsExchangeFuture#onDone:

((DiscoveryCustomEvent)firstDiscoEvt).customMessage(null);

That means a global instance of 'DiscoveryCustomEvent' is being
mutated outside discovery-spi infrastructure. It also means that
discovery listeners receive 'DiscoveryCustomEvent' with 'null' field
instead of 'CustomMessage' which they may rely on.

Issue Links

• links to: GitHub Pull Request #4875
• links to: PR RunAll tests