[SPARK-44962][INFRA] Add Java 21 build to build_and_test.yml

.github/workflows/build_and_test.yml

@@ -86,7 +86,7 @@ jobs:
           sparkr=`./dev/is-changed.py -m sparkr`
           tpcds=`./dev/is-changed.py -m sql`
           docker=`./dev/is-changed.py -m docker-integration-tests`
-          # 'build', 'scala-213', and 'java-11-17' are always true for now.
+          # 'build', 'scala-213', and 'java-other-versions' are always true for now.
           # It does not save significant time and most of PRs trigger the build.
           precondition="
             {
@@ -96,7 +96,7 @@ jobs:
               \"tpcds-1g\": \"$tpcds\",
               \"docker-integration-tests\": \"$docker\",
               \"scala-213\": \"true\",
-              \"java-11-17\": \"true\",
+              \"java-other-versions\": \"true\",
               \"lint\" : \"true\",
               \"k8s-integration-tests\" : \"true\",
               \"breaking-changes-buf\" : \"true\",
@@ -755,16 +755,17 @@ jobs:
         path: site.tar.bz2
         retention-days: 1
 
-  java-11-17:
+  java-other-versions:
     needs: precondition
-    if: fromJson(needs.precondition.outputs.required).java-11-17 == 'true'
+    if: fromJson(needs.precondition.outputs.required).java-other-versions == 'true'
     name: Java ${{ matrix.java }} build with Maven
     strategy:
       fail-fast: false
       matrix:
         java:
           - 11
           - 17
+          - 21-ea
     runs-on: ubuntu-22.04
     steps:
     - name: Checkout Spark repository