[WICKET-6791] Offload WebSocket push when initiated in Wicket request cycle

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 7.16.0, 8.8.0, 9.0.0
• Fix Version/s: 7.17.0, 9.0.0, 8.9.0
• Component/s: wicket-native-websocket
• Assignee: Martin Tzvetanov Grigorov
• Reporter: Martin Tzvetanov Grigorov
• Created: 28/May/20 09:03
• Updated: 29/May/20 13:16
• Resolved: 29/May/20 13:16

Description

From users@ mailing list: https://markmail.org/message/wu2dbjumle4qzd2t

WebSocket pushes should not be executed in the calling thread when they are initiated in http worker thread because this may lead to ConcurrentModificationException while traversing the page components