GitHub build on Java 8, 11, and 14.
diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 915dab6..45d54fa 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -23,7 +23,7 @@
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ 8, 9, 10, 11, 12, 13, 14 ]
+        java: [ 8, 11, 14 ]
         
     steps:
     - uses: actions/checkout@v1