Lachlan

The work for this has been renamed to jetty-delegate, and is currently located [here](https://github.com/GoogleCloudPlatform/appengine-java-standard/tree/3.0.x/runtime/impl/src/main/java/com/google/apphosting/runtime/delegate) in the appengine-java-standard project, but we might decide to bring it back to Jetty at some...

I have run the same test with also adding an `AsyncListener` directly before adding the `WriteListener`. ```java AsyncContext asyncContext = req.startAsync(); asyncContext.addListener(new AsyncListener(){...}); ServletOutputStream out = response.getOutputStream(); out.setWriteListener(new WriteListener() {...

I have repeated this experiment after updating my test over Jetty/Tomcat/Undertow to what I believe are the latest servlet 6 versions. (Jetty-12.0.5, Tomcat-10.1.18, Undertow-2.3.10.Final) The test is setup like this:...

@Justvuur It means your URI has an empty segment (`//`) which makes it ambiguous. This is because it could be an attempt to bypass some security constraints. You can set...

@gregw with the change in behaviour to `SymlinkAllowedResourceAliasChecker`, now `testRelativeRedirect` and `testResourceRedirect` are failing from `ResourceHandlerTest`. They are expecting a request for `/context/dir/index.html/` will redirect to `/context/dir/index.html`, but now the...

> What is the additive behaviour of alias checkers? Does it just need to be approved by one? @gregw yes it just needs to be approved by one, so adding...

> We should not allow dir%2Findex.html just because we allow symlinks. This is exactly the kind of security constraint bypassing alias that the alias mechanism was implemented to protect against....

> If they add them symlink checker it should just allow Sym links and not arbitrary other aliases. The name says it! Well the name says `SymlinkAllowedResourceAliasChecker` not `SymlinkAliasChecker` and...

@gregw I'm not trying to combine them they already are. This is just how it is currently works. If you want to separate them then we're going to have to...

failing due to unrelated flaky tests