--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/debugger/win32/coff/OptionalHeader.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2000 Sun Microsystems, Inc.  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.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.win32.coff;
+
+/** Models the information stored in the optional header of a Portable
+    Executable file. */
+
+public interface OptionalHeader {
+  /** Magic number for a PE32 file */
+  public static final short MAGIC_PE32 = (short) 0x10B;
+
+  /** Magic number for a PE32+ file */
+  public static final short MAGIC_PE32_PLUS = (short) 0x20B;
+
+  /** Magic number for a "ROM image" */
+  public static final short MAGIC_ROM_IMAGE = (short) 0x107;
+
+  /** Returns the magic number of the Optional Header ({@link
+      #MAGIC_PE32}, {@link #MAGIC_PE32_PLUS}, or {@link
+      #MAGIC_ROM_IMAGE}) */
+  public short getMagicNumber();
+
+  /** These are defined for all implementations of COFF, including
+      UNIX. */
+  public OptionalHeaderStandardFields getStandardFields();
+
+  /** These include additional fields to support specific features of
+      Windows (for example, subsystem). */
+  public OptionalHeaderWindowsSpecificFields getWindowsSpecificFields();
+
+  /** Gets the data directories portion of the optional header. */
+  public OptionalHeaderDataDirectories getDataDirectories();
+}