logic: extend language support to Java 12 (issue #752) (#844)

* update java indexer dependencies
* update java language support to java 12
* enable java preview features by default
* add test for Java 12 support
This commit is contained in:
Malte Langkabel
2019-12-16 15:54:00 +01:00
committed by Eberhard Graether
parent d7e16d30e0
commit 8a7ba18b8a
132 changed files with 259 additions and 590 deletions
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