diff --git a/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassReader.java b/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassReader.java
index f13900f1f55..7189dc5fe33 100644
--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassReader.java
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassReader.java
@@ -2731,7 +2731,10 @@ public class ClassReader {
         }
         readClass(c);
         if (previewClassFile) {
-            if ((c.flags_field & SYNTHETIC) != 0 && c.isSubClass(syms.objectType.tsym, types)) {
+            if ((c.flags_field & SYNTHETIC) != 0 &&
+                    c.owner.kind == PCK &&
+                    (c.flags_field & AUXILIARY) == 0 &&
+                    (c.flags_field & FINAL) != 0) {
                 c.flags_field |= UNNAMED_CLASS;
             }
         }