Skip msgpack-jackson3 tests on Java < 17 in CI

Author: komamitsu

.github/workflows/CI.yml

@@ -28,6 +28,7 @@ jobs:
               - 'project/build.properties'
               - 'msgpack-core/**'
               - 'msgpack-jackson/**'
+              - 'msgpack-jackson3/**'
             docs:
               - '**.md'
               - '**.txt'
@@ -65,6 +66,16 @@ jobs:
           key: ${{ runner.os }}-jdk${{ matrix.java }}-${{ hashFiles('**/*.sbt') }}
           restore-keys: ${{ runner.os }}-jdk${{ matrix.java }}-
       - name: Test
-        run: ./sbt test
+        run: |
+          if [[ ${{ matrix.java }} -lt 17 ]]; then
+            ./sbt msgpack-core/test msgpack-jackson/test
+          else
+            ./sbt test
+          fi
       - name: Universal Buffer Test
-        run: ./sbt test -J-Dmsgpack.universal-buffer=true
+        run: |
+          if [[ ${{ matrix.java }} -lt 17 ]]; then
+            ./sbt msgpack-core/test msgpack-jackson/test -J-Dmsgpack.universal-buffer=true
+          else
+            ./sbt test -J-Dmsgpack.universal-buffer=true
+          fi

build.sbt

@@ -101,6 +101,11 @@ val junitVintage   = "org.junit.vintage" % "junit-vintage-engine" % "5.14.4" % "
 val junitInterface = "com.github.sbt"    % "junit-interface"      % "0.13.3" % "test"
 
 // Project settings
+val isJava17Plus: Boolean = {
+  val v = sys.props.getOrElse("java.specification.version", "1.8")
+  if (v.startsWith("1.")) false else scala.util.Try(v.toInt >= 17).getOrElse(false)
+}
+
 lazy val root = Project(id = "msgpack-java", base = file("."))
   .settings(
     buildSettings,
@@ -109,7 +114,10 @@ lazy val root = Project(id = "msgpack-java", base = file("."))
     publish         := {},
     publishLocal    := {}
   )
-  .aggregate(msgpackCore, msgpackJackson, msgpackJackson3)
+  .aggregate(
+    Seq[ProjectReference](msgpackCore, msgpackJackson) ++
+      (if (isJava17Plus) Seq[ProjectReference](msgpackJackson3) else Nil): _*
+  )
 
 lazy val msgpackCore = Project(id = "msgpack-core", base = file("msgpack-core"))
   .enablePlugins(SbtOsgi)