Add openjdk 15 to Java matrix testing rotation (#51335)

mark-vieira · mark-vieira · commit 8a8b61735e32 · 2020-01-22T13:54:08.000-08:00
(cherry picked from commit 9396e75)
diff --git a/.ci/matrix-runtime-javas.yml b/.ci/matrix-runtime-javas.yml
@@ -11,6 +11,7 @@ ES_RUNTIME_JAVA:
   - java11
   - openjdk13
   - openjdk14
+  - openjdk15
   - zulu8
   - zulu11
   - corretto11
