diff -r e0516ee47c36 -r a61da18408c1 src/hotspot/share/classfile/classFileParser.cpp
--- a/src/hotspot/share/classfile/classFileParser.cpp	Tue Apr 23 14:20:08 2019 +0530
+++ b/src/hotspot/share/classfile/classFileParser.cpp	Tue Apr 23 07:05:38 2019 -0400
@@ -126,7 +126,8 @@
 #define JAVA_13_VERSION                   57
 
 void ClassFileParser::set_class_bad_constant_seen(short bad_constant) {
-  assert((bad_constant == 19 || bad_constant == 20) && _major_version >= JAVA_9_VERSION,
+  assert((bad_constant == JVM_CONSTANT_Module ||
+          bad_constant == JVM_CONSTANT_Package) && _major_version >= JAVA_9_VERSION,
          "Unexpected bad constant pool entry");
   if (_bad_constant_seen == 0) _bad_constant_seen = bad_constant;
 }
@@ -343,8 +344,8 @@
         }
         break;
       }
-      case 19:
-      case 20: {
+      case JVM_CONSTANT_Module:
+      case JVM_CONSTANT_Package: {
         // Record that an error occurred in these two cases but keep parsing so
         // that ACC_Module can be checked for in the access_flags.  Need to
         // throw NoClassDefFoundError in that case.