Fix three minor build and CI issues

- Use --release 17 instead of -source 17 -target 17 in javacOptions;
  --release also restricts the API set to JDK 17, catching accidental
  use of newer APIs at compile time
- Remove --add-opens from @fork jvmArgsAppend in benchmark classes;
  build.sbt's Jmh/javaOptions already passes them to the forked JVM
- Add missing trailing newline to CI.yml

Author: komamitsu

.github/workflows/CI.yml

@@ -78,4 +78,4 @@ jobs:
             ./sbt msgpack-core/test msgpack-jackson/test -J-Dmsgpack.universal-buffer=true
           else
             ./sbt test -J-Dmsgpack.universal-buffer=true
-          fi
+          fi

build.sbt

@@ -190,8 +190,8 @@ lazy val msgpackJackson3 = Project(id = "msgpack-jackson3", base = file("msgpack
     OsgiKeys.exportPackage      := Seq("org.msgpack.jackson", "org.msgpack.jackson.dataformat"),
     OsgiKeys.importPackage      := Seq("!android.os", "!sun.*"),
     Test / fork    := true,
-    javacOptions   := Seq("-source", "17", "-target", "17"),
-    doc / javacOptions := Seq("-source", "17", "-Xdoclint:none"),
+    javacOptions   := Seq("--release", "17"),
+    doc / javacOptions := Seq("--release", "17", "-Xdoclint:none"),
     libraryDependencies ++=
       Seq(
         "tools.jackson.core" % "jackson-databind" % "3.1.2",

msgpack-jackson3/src/jmh/java/org/msgpack/jackson/dataformat/benchmark/MsgpackReadBenchmark.java

@@ -16,10 +16,7 @@
 @BenchmarkMode(Mode.Throughput)
 @OutputTimeUnit(TimeUnit.SECONDS)
 @State(Scope.Thread)
-@Fork(value = 2, jvmArgsAppend = {
-        "--add-opens=java.base/java.nio=ALL-UNNAMED",
-        "--add-opens=java.base/sun.nio.ch=ALL-UNNAMED"
-})
+@Fork(2)
 @Warmup(iterations = 5, time = 1)
 @Measurement(iterations = 5, time = 1)
 public class MsgpackReadBenchmark

msgpack-jackson3/src/jmh/java/org/msgpack/jackson/dataformat/benchmark/MsgpackWriteBenchmark.java

@@ -17,10 +17,7 @@
 @BenchmarkMode(Mode.Throughput)
 @OutputTimeUnit(TimeUnit.SECONDS)
 @State(Scope.Thread)
-@Fork(value = 2, jvmArgsAppend = {
-        "--add-opens=java.base/java.nio=ALL-UNNAMED",
-        "--add-opens=java.base/sun.nio.ch=ALL-UNNAMED"
-})
+@Fork(2)
 @Warmup(iterations = 5, time = 1)
 @Measurement(iterations = 5, time = 1)
 public class MsgpackWriteBenchmark