Fix openjdk6 on Travis

[ashawley]

Building on OpenJDK6 is broken again. Previous episode is #247.

The build started failing:

$ ~/bin/install-jdk.sh --target "/home/travis/openjdk6" --workspace "/home/travis/.cache/install-jdk" --feature "6" --license "GPL" --cacerts
install-jdk.sh 2019-01-18 II
Expected feature release number in range of 9 to 13, but got: 6
The command "~/bin/install-jdk.sh --target "/home/travis/openjdk6" --workspace "/home/travis/.cache/install-jdk" --feature "6" --license "GPL" --cacerts" failed and exited with 3 during .

Downgrading from Trusty back to Precise gives:

$ admin/build.sh
Downloading sbt launcher for 0.13.17:
  From  http://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/0.13.17/sbt-launch.jar
    To  /home/travis/.sbt/launchers/0.13.17/sbt-launch.jar
*** buffer overflow detected ***: java terminated

This can be fixed with a hostname setting.

[ashawley]

The Java builds work, but the Scala.js builds are suddenly broken. I have no idea why.

[info] Fast optimizing /home/travis/build/scala/scala-xml/js/target/scala-2.12/scala-xml-test-fastopt.js
[stdin]:46
  var inBuffer = Buffer.alloc(0);
...
TypeError: Object Buffer has no method 'alloc'
    at [stdin]:46:25
    at [stdin]:112:4
    at Object.<anonymous> ([stdin]-wrapper:6:22)
    at Module._compile (module.js:456:26)
    at evalScript (node.js:559:25)
    at Socket.<anonymous> (node.js:154:11)
    at Socket.emit (events.js:117:20)
    at _stream_readable.js:944:16
    at process._tickCallback (node.js:442:13)
org.scalajs.jsenv.ExternalJSEnv$NonZeroExitException: Node.js exited with code 8

[SethTisue]

looks to me like the version of Node being used is too old

[ashawley]

Ok, let me see if I can set the node version on Precise.

[ashawley]

Looks like setting Node to version 8 worked.

[SethTisue]

note to self or anyone using this a reference guide: also needed is https://github.com/scala/scala-xml/blob/master/.sbtrepos and -Dsbt.override.build.repos=true -Dsbt.repository.config=./.sbtrepos

[ashawley]

Indeed, this is a two part episode. The first episode was #247.