1 files changed, 39 insertions, 0 deletions
diff --git a/test/files/run/t4841-isolate-plugins/t4841-isolate-plugin.scala b/test/files/run/t4841-isolate-plugins/t4841-isolate-plugin.scala
new file mode 100644
index 0000000000..5421922c9c
--- /dev/null
+++ b/test/files/run/t4841-isolate-plugins/t4841-isolate-plugin.scala
@@ -0,0 +1,39 @@
+
+import tools.nsc.plugins.PluginDescription
+import tools.partest.DirectTest
+
+import java.io.File
+
+// show that plugins are on isolated class loaders
+object Test extends DirectTest {
+  override def code = "class Code"
+
+  override def extraSettings = s"-usejavacp"
+
+  // plugin named ploogin1_1 or ploogin1_2, but not ploogin2_x
+  // Although the samples are in different classloaders, the plugin
+  // loader checks for distinctness by class name, so the names must differ.
+  def pluginCode(index: Int) = s"""
+    |package t4841 {
+    |  class SamplePloogin$index(global: scala.tools.nsc.Global) extends Ploogin(global, s"$${PlooginCounter.named}_$index")
+    |  object PlooginCounter {
+    |    val count = new java.util.concurrent.atomic.AtomicInteger
+    |    def named = s"ploogin$${count.incrementAndGet}"
+    |  }
+    |}""".stripMargin.trim
+
+  def compilePlugin(i: Int) = {
+    val out  = (testOutput / s"p$i").createDirectory()
+    val args = Seq("-usejavacp", "-d", out.path)
+    compileString(newCompiler(args: _*))(pluginCode(i))
+    val xml  = PluginDescription(s"p$i", s"t4841.SamplePloogin$i").toXML
+    (out / "scalac-plugin.xml").toFile writeAll xml
+    out
+  }
+
+  override def show() = {
+    val dirs = 1 to 2 map (compilePlugin(_))
+    compile("-Xdev", s"-Xplugin:${dirs mkString ","}", "-usejavacp", "-d", testOutput.path)
+  }
+}
+