checkJava "1.6" insufficient for sbt 1.0.2+ pulling scala 2.12.3 requires JDK8+

[javabrett]

See https://github.com/sbt/sbt-launcher-package/blob/master/src/universal/bin/sbt-launch-lib.bash#L265 .

sbt 1.0.2 pulls down 2.12.3 which requires JDK 1.8, so checkJava "1.6" is insufficient - install prep continues until:

Error during sbt execution: java.lang.UnsupportedClassVersionError: scala/Option : Unsupported major.minor version 52.0

#115 is somewhat related.

[dwijnand]

Perhaps the fix is to use the sbt.version in build.properties to pick between checkJava "1.6" or checkJava "1.8".

[fommil]

this is fixed by the looks of it, but why are we even checking the java version? Java 6 was released in 2006, are we still concerned that somebody tries to start sbt with some old Java 3 install?

[fommil]

oh sorry, it's not fixed in the sense that you want it to check java 8. I tihnk it shouldn't check at all.