[main] websocket example: sync code of java example with the scala one (backport #669) by @mkurz

[mergify[bot]]

The code in play-scala-websocket-example and play-java-websocket-example is now synced and pretty much the same, except the java vs scala source code of course.

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This is an automatic backport of pull request #669 done by Mergify.

[mergify[bot]]

Cherry-pick of f8426018df75f62466ae2ecd5768415378551d0b has failed:

On branch mergify/bp/main/pr-669
Your branch is up to date with 'origin/main'.

You are currently cherry-picking commit f8426018.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
    modified:   play-java-websocket-example/app/assets/stylesheets/main.less
    modified:   play-java-websocket-example/app/controllers/HomeController.java
    modified:   play-java-websocket-example/app/views/index.scala.html
    modified:   play-java-websocket-example/conf/application.conf
    modified:   play-java-websocket-example/conf/logback.xml
    modified:   play-java-websocket-example/conf/routes
    modified:   play-java-websocket-example/test/controllers/WebSocketClient.java

Unmerged paths:
  (use "git add <file>..." to mark resolution)
    both modified:   play-java-websocket-example/build.sbt

Cherry-pick of f707d8933382c8df6967129ee5261709826693c6 has failed:

On branch mergify/bp/main/pr-669
Your branch is ahead of 'origin/main' by 1 commit.
  (use "git push" to publish your local commits)

You are currently cherry-picking commit f707d893.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
    modified:   play-java-websocket-example/app/controllers/HomeController.java
    modified:   play-java-websocket-example/app/views/index.scala.html
    modified:   play-java-websocket-example/conf/routes

Unmerged paths:
  (use "git add <file>..." to mark resolution)
    both modified:   play-java-websocket-example/build.sbt

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[mkurz]

@ihostage feel free to resolve conflicts, I have an appointment in the afternoon.

[ihostage]

@ihostage feel free to resolve conflicts, I have an appointment in the afternoon.

Got it 👌