--- old/src/java.base/share/classes/java/lang/invoke/StringConcatFactory.java	2020-03-17 11:31:38.000000000 -0700
+++ new/src/java.base/share/classes/java/lang/invoke/StringConcatFactory.java	2020-03-17 11:31:37.000000000 -0700
@@ -45,7 +45,7 @@
 
 import static java.lang.invoke.MethodHandles.lookup;
 import static java.lang.invoke.MethodType.methodType;
-import static java.lang.invoke.MethodHandleNatives.Constants.*;
+import static java.lang.invoke.MethodHandles.Lookup.ClassOption.*;
 import static jdk.internal.org.objectweb.asm.Opcodes.*;
 
 /**
@@ -1142,7 +1142,7 @@
 
             byte[] classBytes = cw.toByteArray();
             try {
-                Class<?> innerClass = lookup.defineHiddenClass(classBytes,true).lookupClass();
+                Class<?> innerClass = lookup.defineHiddenClass(classBytes, true, STRONG).lookupClass();
                 dumpIfEnabled(className, classBytes);
                 return lookup.findStatic(innerClass, METHOD_NAME, args);
             } catch (Exception e) {