diff --git a/langtools/test/tools/javac/tree/TreePosTest.java b/langtools/test/tools/javac/tree/TreePosTest.java
index 496cdf374dd..ffd0190bcf7 100644
--- a/langtools/test/tools/javac/tree/TreePosTest.java
+++ b/langtools/test/tools/javac/tree/TreePosTest.java
@@ -281,8 +281,7 @@ public class TreePosTest {
         JavacTool tool = JavacTool.create();
         r.errors = 0;
         Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(file);
-        JavacTask task = tool.getTask(pw, fm, r, Collections.<String>emptyList(),
-                List.of("-proc:none"), files);
+        JavacTask task = tool.getTask(pw, fm, r, List.of("-proc:none"), null, files);
         Iterable<? extends CompilationUnitTree> trees = task.parse();
         pw.flush();
         if (r.errors > 0)