diff -r 3fcc279c921b -r d382dacfd73f rt/emul/compact/src/main/java/java/io/ObjectStreamConstants.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rt/emul/compact/src/main/java/java/io/ObjectStreamConstants.java	Tue Feb 26 16:54:16 2013 +0100
@@ -0,0 +1,215 @@
+/*
+ * Copyright (c) 1996, 2006, 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 java.io;
+
+/**
+ * Constants written into the Object Serialization Stream.
+ *
+ * @author  unascribed
+ * @since JDK 1.1
+ */
+public interface ObjectStreamConstants {
+
+    /**
+     * Magic number that is written to the stream header.
+     */
+    final static short STREAM_MAGIC = (short)0xaced;
+
+    /**
+     * Version number that is written to the stream header.
+     */
+    final static short STREAM_VERSION = 5;
+
+    /* Each item in the stream is preceded by a tag
+     */
+
+    /**
+     * First tag value.
+     */
+    final static byte TC_BASE = 0x70;
+
+    /**
+     * Null object reference.
+     */
+    final static byte TC_NULL =         (byte)0x70;
+
+    /**
+     * Reference to an object already written into the stream.
+     */
+    final static byte TC_REFERENCE =    (byte)0x71;
+
+    /**
+     * new Class Descriptor.
+     */
+    final static byte TC_CLASSDESC =    (byte)0x72;
+
+    /**
+     * new Object.
+     */
+    final static byte TC_OBJECT =       (byte)0x73;
+
+    /**
+     * new String.
+     */
+    final static byte TC_STRING =       (byte)0x74;
+
+    /**
+     * new Array.
+     */
+    final static byte TC_ARRAY =        (byte)0x75;
+
+    /**
+     * Reference to Class.
+     */
+    final static byte TC_CLASS =        (byte)0x76;
+
+    /**
+     * Block of optional data. Byte following tag indicates number
+     * of bytes in this block data.
+     */
+    final static byte TC_BLOCKDATA =    (byte)0x77;
+
+    /**
+     * End of optional block data blocks for an object.
+     */
+    final static byte TC_ENDBLOCKDATA = (byte)0x78;
+
+    /**
+     * Reset stream context. All handles written into stream are reset.
+     */
+    final static byte TC_RESET =        (byte)0x79;
+
+    /**
+     * long Block data. The long following the tag indicates the
+     * number of bytes in this block data.
+     */
+    final static byte TC_BLOCKDATALONG= (byte)0x7A;
+
+    /**
+     * Exception during write.
+     */
+    final static byte TC_EXCEPTION =    (byte)0x7B;
+
+    /**
+     * Long string.
+     */
+    final static byte TC_LONGSTRING =   (byte)0x7C;
+
+    /**
+     * new Proxy Class Descriptor.
+     */
+    final static byte TC_PROXYCLASSDESC =       (byte)0x7D;
+
+    /**
+     * new Enum constant.
+     * @since 1.5
+     */
+    final static byte TC_ENUM =         (byte)0x7E;
+
+    /**
+     * Last tag value.
+     */
+    final static byte TC_MAX =          (byte)0x7E;
+
+    /**
+     * First wire handle to be assigned.
+     */
+    final static int baseWireHandle = 0x7e0000;
+
+
+    /******************************************************/
+    /* Bit masks for ObjectStreamClass flag.*/
+
+    /**
+     * Bit mask for ObjectStreamClass flag. Indicates a Serializable class
+     * defines its own writeObject method.
+     */
+    final static byte SC_WRITE_METHOD = 0x01;
+
+    /**
+     * Bit mask for ObjectStreamClass flag. Indicates Externalizable data
+     * written in Block Data mode.
+     * Added for PROTOCOL_VERSION_2.
+     *
+     * @see #PROTOCOL_VERSION_2
+     * @since 1.2
+     */
+    final static byte SC_BLOCK_DATA = 0x08;
+
+    /**
+     * Bit mask for ObjectStreamClass flag. Indicates class is Serializable.
+     */
+    final static byte SC_SERIALIZABLE = 0x02;
+
+    /**
+     * Bit mask for ObjectStreamClass flag. Indicates class is Externalizable.
+     */
+    final static byte SC_EXTERNALIZABLE = 0x04;
+
+    /**
+     * Bit mask for ObjectStreamClass flag. Indicates class is an enum type.
+     * @since 1.5
+     */
+    final static byte SC_ENUM = 0x10;
+
+
+    /* *******************************************************************/
+    /* Security permissions */
+
+   /**
+    * A Stream Protocol Version. <p>
+    *
+    * All externalizable data is written in JDK 1.1 external data
+    * format after calling this method. This version is needed to write
+    * streams containing Externalizable data that can be read by
+    * pre-JDK 1.1.6 JVMs.
+    *
+    * @see java.io.ObjectOutputStream#useProtocolVersion(int)
+    * @since 1.2
+    */
+    public final static int PROTOCOL_VERSION_1 = 1;
+
+
+   /**
+    * A Stream Protocol Version. <p>
+    *
+    * This protocol is written by JVM 1.2.
+    *
+    * Externalizable data is written in block data mode and is
+    * terminated with TC_ENDBLOCKDATA. Externalizable classdescriptor
+    * flags has SC_BLOCK_DATA enabled. JVM 1.1.6 and greater can
+    * read this format change.
+    *
+    * Enables writing a nonSerializable class descriptor into the
+    * stream. The serialVersionUID of a nonSerializable class is
+    * set to 0L.
+    *
+    * @see java.io.ObjectOutputStream#useProtocolVersion(int)
+    * @see #SC_BLOCK_DATA
+    * @since 1.2
+    */
+    public final static int PROTOCOL_VERSION_2 = 2;
+}