We're experiencing issues with Jenkins swarm agents hanging on Window 8 with `swarm-client 3.24` when using websocket connections.

The same underlying image works perfectly when websocket connections are disabled.

We've managed to capture a couple of thread-dumps from affected hosts, and also have `FINE` level logs available from the `swarm-client` process. 

Thread dumps:

• https://fastthread.io/my-thread-report.jsp?p=c2hhcmVkLzIwMjEvMDYvMjEvLS1hcGktNjZlYjcxMmEtMTMzZS00YjlmLWFmODUtZjc3YzdiYjAwYzBlYTNmYWQwMWQtZGMwZC00YjMzLTg0NDctMDAwNjEwNWYwNjM0LnR4dA==&
• https://fastthread.io/my-thread-report.jsp?p=c2hhcmVkLzIwMjEvMDYvMjEvLS1hcGktODkzMWYwZDUtYTU4OC00ZGMzLWIxYzktOTAyZGQ5YzcwMjY3ODE2NTJmMzItZjkxNi00NmQ4LTg2NmYtMmQwOGMyYmQ4ZjMzLnR4dA==&

Swarm logs:

• https://gist.github.com/fatmcgav/6d18ce0c1cef70c8d0f8ac7d278fd7d6