--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.jdeps/share/classes/com/sun/tools/classfile/Module_attribute.java	Thu Mar 17 19:04:28 2016 +0000
@@ -0,0 +1,160 @@
+/*
+ * Copyright (c) 2015, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.sun.tools.classfile;
+
+import java.io.IOException;
+
+/**
+ * See Jigsaw.
+ *
+ *  <p><b>This is NOT part of any supported API.
+ *  If you write code that depends on this, you do so at your own risk.
+ *  This code and its internal interfaces are subject to change or
+ *  deletion without notice.</b>
+ */
+public class Module_attribute extends Attribute {
+    public static final int ACC_PUBLIC    =   0x20;
+    public static final int ACC_SYNTHETIC = 0x1000;
+    public static final int ACC_MANDATED  = 0x8000;
+
+    Module_attribute(ClassReader cr, int name_index, int length) throws IOException {
+        super(name_index, length);
+        requires_count = cr.readUnsignedShort();
+        requires = new RequiresEntry[requires_count];
+        for (int i = 0; i < requires_count; i++)
+            requires[i] = new RequiresEntry(cr);
+        exports_count = cr.readUnsignedShort();
+        exports = new ExportsEntry[exports_count];
+        for (int i = 0; i < exports_count; i++)
+            exports[i] = new ExportsEntry(cr);
+        uses_count = cr.readUnsignedShort();
+        uses_index = new int[uses_count];
+        for (int i = 0; i < uses_count; i++)
+            uses_index[i] = cr.readUnsignedShort();
+        provides_count = cr.readUnsignedShort();
+        provides = new ProvidesEntry[provides_count];
+        for (int i = 0; i < provides_count; i++)
+            provides[i] = new ProvidesEntry(cr);
+    }
+
+    public Module_attribute(int name_index,
+            RequiresEntry[] requires,
+            ExportsEntry[] exports,
+            int[] uses,
+            ProvidesEntry[] provides) {
+        super(name_index, 2);
+        requires_count = requires.length;
+        this.requires = requires;
+        exports_count = exports.length;
+        this.exports = exports;
+        uses_count = uses.length;
+        this.uses_index = uses;
+        provides_count = provides.length;
+        this.provides = provides;
+
+    }
+
+    public String getUses(int index, ConstantPool constant_pool) throws ConstantPoolException {
+        int i = uses_index[index];
+        return constant_pool.getClassInfo(i).getName();
+    }
+
+    @Override
+    public <R, D> R accept(Visitor<R, D> visitor, D data) {
+        return visitor.visitModule(this, data);
+    }
+
+    public final int requires_count;
+    public final RequiresEntry[] requires;
+    public final int exports_count;
+    public final ExportsEntry[] exports;
+    public final int uses_count;
+    public final int[] uses_index;
+    public final int provides_count;
+    public final ProvidesEntry[] provides;
+
+    public static class RequiresEntry {
+        RequiresEntry(ClassReader cr) throws IOException {
+            requires_index = cr.readUnsignedShort();
+            requires_flags = cr.readUnsignedShort();
+        }
+
+        public RequiresEntry(int index, int flags) {
+            this.requires_index = index;
+            this.requires_flags = flags;
+        }
+
+        public String getRequires(ConstantPool constant_pool) throws ConstantPoolException {
+            return constant_pool.getUTF8Value(requires_index);
+        }
+
+        public static final int length = 4;
+
+        public final int requires_index;
+        public final int requires_flags;
+    }
+
+    public static class ExportsEntry {
+        ExportsEntry(ClassReader cr) throws IOException {
+            exports_index = cr.readUnsignedShort();
+            exports_to_count = cr.readUnsignedShort();
+            exports_to_index = new int[exports_to_count];
+            for (int i = 0; i < exports_to_count; i++)
+                exports_to_index[i] = cr.readUnsignedShort();
+        }
+
+        public ExportsEntry(int index, int[] to) {
+            this.exports_index = index;
+            this.exports_to_count = to.length;
+            this.exports_to_index = to;
+        }
+
+        public int length() {
+            return 4 + 2 * exports_to_index.length;
+        }
+
+        public final int exports_index;
+        public final int exports_to_count;
+        public final int[] exports_to_index;
+    }
+
+    public static class ProvidesEntry {
+        ProvidesEntry(ClassReader cr) throws IOException {
+            provides_index = cr.readUnsignedShort();
+            with_index = cr.readUnsignedShort();
+        }
+
+        public ProvidesEntry(int provides, int with) {
+            this.provides_index = provides;
+            this.with_index = with;
+        }
+
+        public static final int length = 4;
+
+        public final int provides_index;
+        public final int with_index;
+    }
+}