Flaky: CIOWebSocketTest.testCorruptFrameWithBadOpcode EADDRINUSE on linuxX64

[e5l]

Description

CIOWebSocketTest.testCorruptFrameWithBadOpcode[linuxX64] fails with EADDRINUSE — port conflict from a previous test not releasing the port in time.

Impact

Intermittent failure on "Native Linux X64" CI check.

Affected PRs (sample)

• KTOR-8938 Inherit server coroutine context in WebSocket session #5426

Platforms

• Native Linux X64 (linuxX64)

Suggested investigation

• Add a small delay or use dynamic port allocation (port 0) to avoid port conflicts between tests
• Ensure ServerSocket.close() completes before the next test binds to the same port