--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.activation/share/classes/com/sun/activation/registries/LogSupport.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2003, 2012, 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.activation.registries;
+
+import java.io.*;
+import java.util.logging.*;
+
+/**
+ * Logging related methods.
+ */
+public class LogSupport {
+    private static boolean debug = false;
+    private static Logger logger;
+    private static final Level level = Level.FINE;
+
+    static {
+        try {
+            debug = Boolean.getBoolean("javax.activation.debug");
+        } catch (Throwable t) {
+            // ignore any errors
+        }
+        logger = Logger.getLogger("javax.activation");
+    }
+
+    /**
+     * Constructor.
+     */
+    private LogSupport() {
+        // private constructor, can't create instances
+    }
+
+    public static void log(String msg) {
+        if (debug)
+            System.out.println(msg);
+        logger.log(level, msg);
+    }
+
+    public static void log(String msg, Throwable t) {
+        if (debug)
+            System.out.println(msg + "; Exception: " + t);
+        logger.log(level, msg, t);
+    }
+
+    public static boolean isLoggable() {
+        return debug || logger.isLoggable(level);
+    }
+}