Brian Clozel a21706c58a Copy WS handshake headers to store in session ...

Prior to this commit, the `StandardWebSocketUpgradeStrategy` would get
the HTTP headers from the handshake request and store them in the
WebSocket session for the entire duration of the session.
As of gh-36334, Spring MVC manages HTTP directly with a native API
instead of copying them. This improves performance but also uncovered
this bug: we cannot keep a reference to HTTP headers once the HTTP
exchange is finished, because such resources can be recycled and reused.

This commit ensures that the handshake headers are copied into the
session info to keep them around for the entire duration of the session.
Without that, Tomcat will raise an `IllegalStateException` at runtime.

This was already done for WebFlux in SPR-17250, but the latest header
management changes in Framework uncovered this issue for the Standard
WebSocket container case.

Fixes gh-36486

2026-03-17 18:09:57 +01:00

..

src

Copy WS handshake headers to store in session

2026-03-17 18:09:57 +01:00

spring-websocket.gradle

Remove Undertow-specific support and testing

2025-08-20 10:32:33 +02:00