srowen commented on a change in pull request #24239: [SPARK-27121][REPL]
Resolve Scala compiler failure for Java 9+ in REPL
URL: https://github.com/apache/spark/pull/24239#discussion_r270271416
##########
File path: repl/src/test/scala/org/apache/spark/repl/ReplSuite.scala
##########
@@ -34,33 +33,33 @@ class ReplSuite extends SparkFunSuite {
def runInterpreter(master: String, input: String): String = {
val CONF_EXECUTOR_CLASSPATH = "spark.executor.extraClassPath"
- val in = new BufferedReader(new StringReader(input + "\n"))
- val out = new StringWriter()
+
val cl = getClass.getClassLoader
- var paths = new ArrayBuffer[String]
- if (cl.isInstanceOf[URLClassLoader]) {
- val urlLoader = cl.asInstanceOf[URLClassLoader]
- for (url <- urlLoader.getURLs) {
- if (url.getProtocol == "file") {
- paths += url.getFile
- }
- }
- }
- val classpath = paths.map(new
File(_).getAbsolutePath).mkString(File.pathSeparator)
val oldExecutorClasspath = System.getProperty(CONF_EXECUTOR_CLASSPATH)
- System.setProperty(CONF_EXECUTOR_CLASSPATH, classpath)
+ if (oldExecutorClasspath == null) {
+ System.clearProperty(CONF_EXECUTOR_CLASSPATH)
+ } else {
+ System.setProperty(CONF_EXECUTOR_CLASSPATH, oldExecutorClasspath)
+ }
+
+ val classpath = cl match {
+ case urlLoader: URLClassLoader =>
+ val paths = urlLoader.getURLs.filter(_.getProtocol ==
"file").map(_.getFile)
+ val classpath = paths.map(new
File(_).getAbsolutePath).mkString(File.pathSeparator)
+ System.setProperty(CONF_EXECUTOR_CLASSPATH, classpath)
+ classpath
+ case _ => System.getProperty("java.class.path")
Review comment:
@squito this is your suggestion. I wonder why we don't just use this in all
cases, Java 11 or no?
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