MINOR: Update Scala to 2.12.4
Mainly for Java 9 fixes and improved compilation times (5-10% reduction):
Author: Ismael Juma
Reviewers: Rajini Sivaram
Closes from ijuma/update-scala-version
@@ -30,7 +30,7 @@ ext {
// Add Scala version
def defaultScala211Version = '2.11.11'
-def defaultScala212Version = '2.12.3'
+def defaultScala212Version = '2.12.4'
if (hasProperty('scalaVersion')) {
if (scalaVersion == '2.11') {
versions["scala"] = defaultScala211Version
