Travis: Replace Java 14 with 15. One Java 11

Gary Gregory · Gary Gregory · commit 03db6717d33d · 2020-11-20T21:34:55.000-05:00
build.
diff --git a/.travis.yml b/.travis.yml
@@ -22,9 +22,8 @@ cache:
 jdk:
   - openjdk8
   - openjdk11
-  - openjdk14
+  - openjdk15
   - openjdk-ea
-  - oraclejdk11
 
 matrix:
   exclude:
