diff a/src/java.base/share/classes/java/lang/reflect/ProxyGenerator.java b/src/java.base/share/classes/java/lang/reflect/ProxyGenerator.java
--- a/src/java.base/share/classes/java/lang/reflect/ProxyGenerator.java
+++ b/src/java.base/share/classes/java/lang/reflect/ProxyGenerator.java
@@ -444,11 +444,11 @@
     /**
      * Generate a class file for the proxy class.  This method drives the
      * class file generation process.
      */
     private byte[] generateClassFile() {
-        visit(V14, accessFlags, dotToSlash(className), null,
+        visit(V15, accessFlags, dotToSlash(className), null,
                 JLR_PROXY, typeNames(interfaces));
 
         /*
          * Add proxy methods for the hashCode, equals,
          * and toString methods of java.lang.Object.  This is done before