support unit tests with java 17

Author: allisonport-db

build.sbt

@@ -130,6 +130,20 @@ lazy val spark = (project in file("spark"))
     Test / testOptions += Tests.Argument("-oDF"),
     Test / testOptions += Tests.Argument(TestFrameworks.JUnit, "-v", "-a"),
 
+    // Copied from SparkBuild.scala to support Java 17 (see apache/spark#34153)
+    (Test / javaOptions) ++= Seq(
+      "--add-opens=java.base/java.lang=ALL-UNNAMED",
+      "--add-opens=java.base/java.lang.invoke=ALL-UNNAMED",
+      "--add-opens=java.base/java.io=ALL-UNNAMED",
+      "--add-opens=java.base/java.net=ALL-UNNAMED",
+      "--add-opens=java.base/java.nio=ALL-UNNAMED",
+      "--add-opens=java.base/java.util=ALL-UNNAMED",
+      "--add-opens=java.base/java.util.concurrent=ALL-UNNAMED",
+      "--add-opens=java.base/sun.nio.ch=ALL-UNNAMED",
+      "--add-opens=java.base/sun.nio.cs=ALL-UNNAMED",
+      "--add-opens=java.base/sun.security.action=ALL-UNNAMED",
+      "--add-opens=java.base/sun.util.calendar=ALL-UNNAMED"),
+
     // Don't execute in parallel since we can't have multiple Sparks in the same JVM
     Test / parallelExecution := false,