--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.jdeps/share/classes/com/sun/tools/classfile/Dependency.java	Wed May 27 13:25:18 2015 -0700
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2009, 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;
+
+
+/**
+ * A directed relationship between two {@link Dependency.Location Location}s.
+ * Subtypes of {@code Dependency} may provide additional detail about the dependency.
+ *
+ * @see Dependency.Finder
+ * @see Dependency.Filter
+ * @see Dependencies
+ */
+public interface Dependency {
+    /**
+     * A filter used to select dependencies of interest, and to discard others.
+     */
+    public interface Filter {
+        /**
+         * Return true if the dependency is of interest.
+         * @param dependency the dependency to be considered
+         * @return true if and only if the dependency is of interest.
+         */
+        boolean accepts(Dependency dependency);
+    }
+
+    /**
+     * An interface for finding the immediate dependencies of a given class file.
+     */
+    public interface Finder {
+        /**
+         * Find the immediate dependencies of a given class file.
+         * @param classfile the class file to be examined
+         * @return the dependencies located in the given class file.
+         */
+        public Iterable<? extends Dependency> findDependencies(ClassFile classfile);
+    }
+
+
+    /**
+     * A location somewhere within a class. Subtypes of {@code Location}
+     * may be used to provide additional detail about the location.
+     */
+    public interface Location {
+        /**
+         * Get the name of the class containing the location.
+         * This name will be used to locate the class file for transitive
+         * dependency analysis.
+         * @return the name of the class containing the location.
+         */
+        String getName();
+
+        /**
+         * Get the fully-qualified name of the class containing the location.
+         * @return the fully-qualified name of the class containing the location.
+         */
+        String getClassName();
+
+        /**
+         * Get the package name of the class containing the location.
+         * @return the package name of the class containing the location.
+         */
+        String getPackageName();
+    }
+
+
+    /**
+     * Get the location that has the dependency.
+     * @return the location that has the dependency.
+     */
+    Location getOrigin();
+
+    /**
+     * Get the location that is being depended upon.
+     * @return the location that is being depended upon.
+     */
+    Location getTarget();
+}
+