Fix javac --incremental by using jmake for dependency analysis

third_party/jmake/src/org/pantsbuild/jmake/PrivateException.java

+/* Copyright (c) 2002-2008 Sun Microsystems, Inc. All rights reserved
+ *
+ * This program is distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+package org.pantsbuild.jmake;
+
+/**
+ * This class is used as a wrapper for a number of exceptions that are thrown by jmake. Its
+ * only purpose is to help avoid using endless "throws" clauses in the code.
+ *
+ * @author  Misha Dmitriev
+ *  12 November 2001
+ */
+public class PrivateException extends RuntimeException {
+
+    private static final long serialVersionUID = 1L;
+    private Throwable originalException;
+
+    public PrivateException(Throwable e) {
+        originalException = e;
+    }
+
+    public Throwable getOriginalException() {
+        return originalException;
+    }
+}