Merge pull request #963 from quickfix-j/chrjohn-github-java21

Use JDK21 in github Java CI

Author: chrjohn

.github/workflows/maven.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macOS-13]
-        java: [8, 11, 17]
+        java: [8, 11, 21]
       fail-fast: false
       max-parallel: 4
     name: Test JDK ${{ matrix.java }}, ${{ matrix.os }}
@@ -35,7 +35,7 @@ jobs:
     strategy:
       matrix:
         os: [windows-latest]
-        java: [8, 11, 17]
+        java: [8, 11, 21]
       fail-fast: false
       max-parallel: 3
     name: Test JDK ${{ matrix.java }}, ${{ matrix.os }}