diff -r 000000000000 -r 959103a6100f src/share/classes/com/sun/tools/classfile/StackMap_attribute.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/com/sun/tools/classfile/StackMap_attribute.java	Wed Apr 27 01:34:52 2016 +0800
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2007, 2008, 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;
+
+/**
+ *  <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 StackMap_attribute extends Attribute {
+    StackMap_attribute(ClassReader cr, int name_index, int length)
+            throws IOException, StackMapTable_attribute.InvalidStackMap {
+        super(name_index, length);
+        number_of_entries = cr.readUnsignedShort();
+        entries = new stack_map_frame[number_of_entries];
+        for (int i = 0; i < number_of_entries; i++)
+            entries[i] = new stack_map_frame(cr);
+    }
+
+    public StackMap_attribute(ConstantPool constant_pool, stack_map_frame[] entries)
+            throws ConstantPoolException {
+        this(constant_pool.getUTF8Index(Attribute.StackMap), entries);
+    }
+
+    public StackMap_attribute(int name_index, stack_map_frame[] entries) {
+        super(name_index, StackMapTable_attribute.length(entries));
+        this.number_of_entries = entries.length;
+        this.entries = entries;
+    }
+
+    public <R, D> R accept(Visitor<R, D> visitor, D data) {
+        return visitor.visitStackMap(this, data);
+    }
+
+    public final int number_of_entries;
+    public final stack_map_frame entries[];
+
+    public static class stack_map_frame extends StackMapTable_attribute.full_frame {
+        stack_map_frame(ClassReader cr)
+                throws IOException, StackMapTable_attribute.InvalidStackMap {
+            super(255, cr);
+        }
+    }
+}