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jaxws/src/java.activation/share/classes/javax/activation/MailcapCommandMap.java

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@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2017, 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

@@ -27,10 +27,12 @@
 package javax.activation;
 
 import java.util.*;
 import java.io.*;
 import java.net.*;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
 import com.sun.activation.registries.MailcapFile;
 import com.sun.activation.registries.LogSupport;
 
 /**
  * MailcapCommandMap extends the CommandMap

@@ -46,16 +48,23 @@
  * to search for commands in the MailcapCommandMap, it searches
  * mailcap files in the following order:
  * <ol>
  * <li> Programatically added entries to the MailcapCommandMap instance.
  * <li> The file {@code .mailcap} in the user's home directory.
- * <li> The file {@literal <}<i>java.home</i>{@literal >}{@code /lib/mailcap}.
+ * <li> The file {@code mailcap} in the Java runtime.
  * <li> The file or resources named {@code META-INF/mailcap}.
  * <li> The file or resource named {@code META-INF/mailcap.default}
  * (usually found only in the {@code activation.jar} file).
  * </ol>
  * <p>
+ * (The current implementation looks for the {@code mailcap} file
+ * in the Java runtime in the directory <i>java.home</i>{@code /conf}
+ * if it exists, and otherwise in the directory
+ * <i>java.home</i>{@code /lib}, where <i>java.home</i> is the value
+ * of the "java.home" System property.  Note that the "conf" directory was
+ * introduced in JDK 9.)
+ * <p>
  * <b>Mailcap file format:</b><p>
  *
  * Mailcap files must conform to the mailcap
  * file specification (RFC 1524, <i>A User Agent Configuration Mechanism
  * For Multimedia Mail Format Information</i>).

@@ -118,10 +127,33 @@
      * We manage a collection of databases, searched in order.
      */
     private MailcapFile[] DB;
     private static final int PROG = 0;  // programmatically added entries
 
+    private static final String confDir;
+
+    static {
+        String dir = null;
+        try {
+            dir = (String)AccessController.doPrivileged(
+                new PrivilegedAction() {
+                    public Object run() {
+                        String home = System.getProperty("java.home");
+                        String newdir = home + File.separator + "conf";
+                        File conf = new File(newdir);
+                        if (conf.exists())
+                            return newdir + File.separator;
+                        else
+                            return home + File.separator + "lib" + File.separator;
+                    }
+                });
+        } catch (Exception ex) {
+            // ignore any exceptions
+        }
+        confDir = dir;
+    }
+
     /**
      * The default Constructor.
      */
     public MailcapCommandMap() {
         super();

@@ -142,15 +174,15 @@
         } catch (SecurityException ex) {}
 
         LogSupport.log("MailcapCommandMap: load SYS");
         try {
             // check system's home
-            String system_mailcap = System.getProperty("java.home") +
-                File.separator + "lib" + File.separator + "mailcap";
-            mf = loadFile(system_mailcap);
+            if (confDir != null) {
+                mf = loadFile(confDir + "mailcap");
             if (mf != null)
                 dbv.add(mf);
+            }
         } catch (SecurityException ex) {}
 
         LogSupport.log("MailcapCommandMap: load JAR");
         // load from the app's jar file
         loadAllResources(dbv, "META-INF/mailcap");

@@ -631,10 +663,11 @@
      * <A HREF="http://www.ietf.org/rfc/rfc1524.txt">RFC 1524</A>
      * for details of the mailcap entry syntax.  Only mailcap
      * entries that specify a view command for the specified
      * MIME type are returned.
      *
+     * @param   mimeType        the MIME type
      * @return          array of native command entries
      * @since   1.6, JAF 1.1
      */
     public synchronized String[] getNativeCommands(String mimeType) {
         List cmdList = new ArrayList();
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