There is a CI failure on undertow upgrade PR: https://github.com/wildfly/wildfly-core/pull/4872
The test failure is:
With https://issues.redhat.com/browse/UNDERTOW-1459 fixed, when a server that's acting as a gateway or proxy and did not receive a timely response from the upstream server should return status code 504 Gateway Timeout
It is recommended to fix the test failure in 2 steps:
- Step 1: Update the test case to accept either 503 or 504 to pass the CIs in wildfly-core
- Step 2: Update the test case to accept 504 only after the corresponding wildfly-core version gets integrated into WildFly full
So there will be 2 PRs as well to fix this completely.