--- old/src/java.base/share/classes/jdk/internal/module/ClassFileAttributes.java	2017-02-07 13:13:43.397929024 +0000
+++ new/src/java.base/share/classes/jdk/internal/module/ClassFileAttributes.java	2017-02-07 13:13:43.227917349 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -26,6 +26,7 @@
 package jdk.internal.module;
 
 import java.lang.module.ModuleDescriptor;
+import java.lang.module.ModuleDescriptor.Builder;
 import java.lang.module.ModuleDescriptor.Requires;
 import java.lang.module.ModuleDescriptor.Exports;
 import java.lang.module.ModuleDescriptor.Opens;
@@ -98,14 +99,17 @@
 
             // module_flags
             int module_flags = cr.readUnsignedShort(off);
-            boolean open = ((module_flags & ACC_OPEN) != 0);
-            boolean synthetic = ((module_flags & ACC_SYNTHETIC) != 0);
             off += 2;
 
-            ModuleDescriptor.Builder builder = JLMA.newModuleBuilder(mn,
-                                                                     false,
-                                                                     open,
-                                                                     synthetic);
+            Set<ModuleDescriptor.Modifier> modifiers = new HashSet<>();
+            if ((module_flags & ACC_OPEN) != 0)
+                modifiers.add(ModuleDescriptor.Modifier.OPEN);
+            if ((module_flags & ACC_SYNTHETIC) != 0)
+                modifiers.add(ModuleDescriptor.Modifier.SYNTHETIC);
+            if ((module_flags & ACC_MANDATED) != 0)
+                modifiers.add(ModuleDescriptor.Modifier.MANDATED);
+
+            Builder builder = JLMA.newModuleBuilder(mn, false, modifiers);
 
             // module_version
             String module_version = cr.readUTF8(off, buf);
@@ -142,19 +146,13 @@
                         mods.add(Requires.Modifier.MANDATED);
                 }
 
-
                 // requires_version
-                Version compiledVersion = null;
                 String requires_version = cr.readUTF8(off, buf);
                 off += 2;
-                if (requires_version != null) {
-                    compiledVersion = Version.parse(requires_version);
-                }
-
-                if (compiledVersion == null) {
+                if (requires_version == null) {
                     builder.requires(mods, dn);
                 } else {
-                    builder.requires(mods, dn, compiledVersion);
+                    JLMA.requires(builder, mods, dn, requires_version);
                 }
             }
 
@@ -283,11 +281,14 @@
             attr.putShort(module_name_index);
 
             // module_flags
+            Set<ModuleDescriptor.Modifier> modifiers = descriptor.modifiers();
             int module_flags = 0;
-            if (descriptor.isOpen())
+            if (modifiers.contains(ModuleDescriptor.Modifier.OPEN))
                 module_flags |= ACC_OPEN;
-            if (descriptor.isSynthetic())
+            if (modifiers.contains(ModuleDescriptor.Modifier.SYNTHETIC))
                 module_flags |= ACC_SYNTHETIC;
+            if (modifiers.contains(ModuleDescriptor.Modifier.MANDATED))
+                module_flags |= ACC_MANDATED;
             attr.putShort(module_flags);
 
             // module_version