openjdk team mailing list archive

[Thorsten Glaser <t.glaser@xxxxxxxxx>]

On Thu, 1 Nov 2018, Norbert Preining wrote:

> building jars with jdk11 (as distributed by Debian) at the moment
> seems to create lass file version 54.0 files, but running them on
> Debian supplied jdk8 is not possible:

Indeed.

You have to compile with javac with the --release 8 option,
which is new starting from JDK 9. That will create class
files that use only Java 8 language features and link against
the Java 8 standard library instead of the Java 11 one.

> Would it be possible to update jdk8 in Debian to support that?

Even if it were (which I doubt), the Java 8 runtime (standard
library) does not contain many functions added, so it will not
work.

bye,
//mirabilos
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