UncheckedExecutionException: java.lang.IllegalStateException: Unable to load cache item

[myelkovan]

Hi
I try to decide if I should learn play framework or not. I started with Hello World project but It did not work on windows 10. It said me that Java 18 is too new for Play and I downloaded Java 17 although others are waiting to upgrade Java 19. Unfortunately Hello World did not work with Java 17 and I tried to create new project following the tutorial on playframework.com. I tried Create a Play Java or Scala project using sbt new. And It did not work. I never see a framework that hello world project would cause problem for the ones who are new and ready to find something else. This is the problem when I go on http://localhost:9000/

[info] Version 2.8.16 running Java 17.0.4.1
[info]
[info] Play is run entirely by the community. Please consider contributing and/or donating:
[info] https://www.playframework.com/sponsors
[info]
[info] Running Play on Java 17 is experimental. Tweaks are necessary:
[info] https://github.com/playframework/playframework/releases/2.8.15
[info]

--- (Running the application, auto-reloading is enabled) ---

[info] p.c.s.AkkaHttpServer - Listening for HTTP on /[0:0:0:0:0:0:0:0]:9000

(Server started, use Enter to stop and go back to the console...)

2022-08-19 11:37:10 ERROR play.api.http.DevHttpErrorHandler

! @7oke1cg75 - Internal server error, for (GET) [/] ->

play.api.UnexpectedException: Unexpected exception[UncheckedExecutionException: java.lang.IllegalStateException: Unable to load cache item]
        at play.core.server.DevServerStart$$anon$1.reload(DevServerStart.scala:254)
        at play.core.server.DevServerStart$$anon$1.get(DevServerStart.scala:148)
        at play.core.server.AkkaHttpServer.handleRequest(AkkaHttpServer.scala:308)
        at play.core.server.AkkaHttpServer.$anonfun$createServerBinding$1(AkkaHttpServer.scala:225)

[Squeng]

While I don't know what the root cause(s) might be in your case, I can confirm that Play works fine with Java 17 in my case:
https://github.com/Squoss/Squawg/blob/main/beapi/build.sbt#L24

[mkurz]

In case you tried Java 18 and afterwards Java 17, did you remove the target folder within your project folder? There could have been class files left compiled with Java 18, so it's better to start with a clean environment.

[mamt4real]

Exactly my problem I dont even know where to begin !!!

[mreiche]

I fixed it by force using Java 11.
I installed Java 11 using brew (on MacOS)

brew install openjdk@11

And run setting the JAVA_HOME explicitly (environment variable is not supported for some reason).

sbt run --java-home "/opt/homebrew/Cellar/openjdk@11/11.0.16.1_1"

[mamt4real]

Thanks for the reply....and that's the exact solution that works for me I had to uninstall my jdk17 and replace with 11

…

On Sun, Nov 27, 2022, 10:33 AM Mike Reiche ***@***.***> wrote: I fixed it by force using Java 11. I installed Java 11 using brew (on MacOS) brew install ***@***.*** And run setting the JAVA_HOME explicitly (environment variable is not supported for some reason). sbt run --java-home ***@***.***/11.0.16.1_1" — Reply to this email directly, view it on GitHub <#11394 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AOXML5PVFUENY7IKAIWBKYLWKMTHPANCNFSM57ACXYDQ> . You are receiving this because you commented.Message ID: <playframework/playframework/repo-discussions/11394/comments/4245936@ github.com>

[slisaasquatch]

I just want to say that I ran into the same error with a simple Play 2.8.18 project on Java 17 with a fresh build. The error does not happen on Java 8 or 11.