Unknown OSGi execution environment: 'JavaSE-14' about tycho

[MarcMil]

Same problem, also with Java 14. Did something change between these version regarding OSGi execution environments?

[laeubi]

@akurtakov @mickaelistria could this due to removal of profiles or does this not matter here?

[akurtakov]

Java 14 is no longer supported and Tycho no longer publishes EE for it. After Equinox stopped shipping EEs for Java 9+ Tycho publishes only LTS and last release. Please move to newer JVM.

[laeubi]

@akurtakov thanks for verification, this is one of the cases where I think a longer retention + proper warning would help users as we have discussed recently!

[akurtakov]

Longer retention than actual support period by the project itself doesn't make sense to me - there is no supported Java 14 JVM available AFAIK. Better warnings and etc. are always welcome of course.

[MarcMil]

Better warnings would definitely be helpful in these cases ;) Thanks for the info, will try it with a newer version then. I hope the OP can do that as well or else continue using the older version of Tycho.
JVM changes rarely happen on our side, because they involve physically downloading the JVMs of all supported OSes and architectures, since we include them in our builds. But I guess it's time to for a change :)

[laeubi]

The idea is just that we keep profiles (but never touch update, support,...) them and if used emit a warning.

So instead of

[ERROR] Internal error: org.eclipse.tycho.core.ee.UnknownEnvironmentException: Unknown OSGi execution environment: 'JavaSE-14' -> [Help 1]
... lots of ugly stack traces...

[WARNING] JavaSE-14 is no longer supported from xxx, further versions of Tycho will no longer support using this java version in future releases.

do you think that's feasible? (of course the warning should be printed BEFORE the version actually is no longer supported).

[akurtakov]

Whatever is done is done. This extra warning should target JavaSE-15 as it is the next due for removal once 17 is out. Splitting the profiles in ExecutionEnvironmentUtils to two lists LTS and interim versions and warn about interim versions even when introducing them that they are such might make sense so people keep in mind their short lifespan.

[laeubi]

True, I'll try to take a look at ExecutionEnvironmentUtils if I can add a warning there for future removals.

[akurtakov]

I assume this one should be closed as it didn't manage to get traction and Java-14 is long dead.