1.7.0(?): Groovy compiler creates "Template_*.class" files in root app dir.

[qabi]

After upgrading from 1.6 on Java 8 to 1.7 on Java 11/17, I get a lot of files like 'Template_1001.class' etc. in the root of the app dir. This is the case for precompiling as well as normal compilation.

As far as I can tell this is more or less hardwired in the Groovy compiler (to output a file). I am not sure if these files were written somewhere else before?

I tried changing back to 1.6.0/Java8 and it still seems to happen. So I am at a loss for explaining exactly why this happens, since it did not before.

Seen on Ubuntu 22.04 and MacOS.

Can anybody shed some light on where the (temporary?) compiled groovy classes are supposed to go? Or if they should be deleted after writing the other files under /tmp?

See also: StackOverflow issue

[tazmaniax]

There was a regression but this was recently fixed again and should be available in the next release, see https://github.com/playframework/play1/commit/ed2622db58b0d4311c50cabb2edeba6e5595f925