Build as matrix of Java 8 and 11, only.

We cannot build with Ant on GitHub since the provided Ant
version does not run on Java 7.

diff --git a/.github/workflows/ci-build.yml b/.github/workflows/ci-build.yml
index 354d2d52c8710416cbd6443e0370b7f81e146daa..93bd863ad11cf0dae786d05d544400898bab2431 100644 (file)
--- a/.github/workflows/ci-build.yml
+++ b/.github/workflows/ci-build.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java-version: [7, 8, 11]
+        java-version: [8, 11]
     
     steps:
       - name: Checkout