--- old/src/java.base/share/classes/java/lang/reflect/Proxy.java	2019-05-15 13:57:51.859775807 -0400
+++ new/src/java.base/share/classes/java/lang/reflect/Proxy.java	2019-05-15 13:57:51.479773922 -0400
@@ -849,11 +849,11 @@
         private static void ensureVisible(ClassLoader ld, Class<?> c) {
             Class<?> type = null;
             try {
+                if (c.isInlineClass() && c.isNullableType()) c = c.asPrimaryType();
                 type = Class.forName(c.getName(), false, ld);
             } catch (ClassNotFoundException e) {
             }
-            // use box type to do visibility check
-            if (type != c.asBoxType()) {
+            if (type != c) {
                 throw new IllegalArgumentException(c.getName() +
                         " referenced from a method is not visible from class loader");
             }