Revert "Revert "Set java.version to 12""

This reverts commit d6308815f913b40defe3cefed44b802bc530ba87.

And now we're finally truly in :-) RIP ChronicleMap.

Id: 823c19e81b368d77d6327ce11599f409e6de3609
Author: Caio
Commit time: 2019-05-21T08:34:45+02:00

Modified pom.xml

@@ -30,7 +30,7
</licenses>

<properties>
- <java.version>11</java.version>
+ <java.version>12</java.version>

<maven.compiler.source>${java.version}</maven.compiler.source>
<maven.compiler.target>${java.version}</maven.compiler.target>