diff -r ef8a98bc71f8 -r c4d9d1b08e2e src/jdk.jdeps/share/classes/com/sun/tools/classfile/ClassWriter.java
--- a/src/jdk.jdeps/share/classes/com/sun/tools/classfile/ClassWriter.java	Wed Jan 31 10:55:49 2018 -0800
+++ b/src/jdk.jdeps/share/classes/com/sun/tools/classfile/ClassWriter.java	Fri Sep 08 10:46:46 2017 -0700
@@ -283,6 +283,12 @@
             return 1;
         }
 
+        public Integer visitDynamicConstant(CONSTANT_Dynamic_info info, ClassOutputStream out) {
+            out.writeShort(info.bootstrap_method_attr_index);
+            out.writeShort(info.name_and_type_index);
+            return 1;
+        }
+
         @Override
         public Integer visitLong(CONSTANT_Long_info info, ClassOutputStream out) {
             out.writeLong(info.value);