chore: add test coverage for Java 21 (#227)

* chore: add test coverage for Java 21

* allowlist api.adoptium.net:443

---------

Co-authored-by: Kenneth Rosario <[email protected]>

Author: garethgeorge

.github/workflows/buildpack-integration-test.yml

@@ -35,4 +35,4 @@ jobs:
       prerun: 'invoker/conformance/prerun.sh'
       builder-runtime: 'java17'
       builder-runtime-version: '17'
-      builder-url: gcr.io/gae-runtimes/buildpacks/google-gae-22/java/builder:latest
+      builder-url: gcr.io/gae-runtimes/buildpacks/google-gae-22/java/builder:latest

.github/workflows/conformance.yaml

@@ -14,9 +14,7 @@ jobs:
     strategy:
       matrix:
         java: [
-          11.x
-          # 12.x,
-          # 13.x
+          11.x,
         ]
     steps:
     - name: Harden Runner

.github/workflows/unit.yaml

@@ -14,7 +14,8 @@ jobs:
       matrix:
         java: [
           11.x,
-          17.x
+          17.x,
+          21-ea
         ]
     steps:
     - name: Harden Runner
@@ -25,6 +26,8 @@ jobs:
         allowed-endpoints: >
           github.com:443
           repo.maven.apache.org:443
+          api.adoptium.net:443
+          *.githubusercontent.com:443
     - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
     - name: Set up JDK ${{ matrix.java }}
       uses: actions/setup-java@0ab4596768b603586c0de567f2430c30f5b0d2b0 # v3.13.0

invoker/core/src/test/java/com/google/cloud/functions/invoker/IntegrationTest.java

@@ -363,6 +363,10 @@ private static int getJavaVersion() {
       if (dot != -1) {
         version = version.substring(0, dot);
       }
+      int dash = version.indexOf("-");
+      if (dash != -1) {
+        version = version.substring(0, dash);
+      }
     }
     return Integer.parseInt(version);
   }