8132705: Refactor SharedSecrets in sun.misc.JavaNetAccess

Factor out access for InetAddress

Reviewed-by: chegar, michaelm, alanb

jdk/src/java.base/share/classes/java/net/InetAddress.java

@@ -297,6 +297,13 @@ class InetAddress implements java.io.Serializable {
                     return null;
                 }
             });
+        sun.misc.SharedSecrets.setJavaNetInetAddressAccess(
+                new sun.misc.JavaNetInetAddressAccess() {
+                    public String getOriginalHostName(InetAddress ia) {
+                        return ia.holder.getOriginalHostName();
+                    }
+                }
+        );
         init();
     }
 

jdk/src/java.base/share/classes/java/net/URLClassLoader.java

@@ -774,10 +774,6 @@ public class URLClassLoader extends SecureClassLoader implements Closeable {
                 public URLClassPath getURLClassPath (URLClassLoader u) {
                     return u.ucp;
                 }
-
-                public String getOriginalHostName(InetAddress ia) {
-                    return ia.holder.getOriginalHostName();
-                }
             }
         );
         ClassLoader.registerAsParallelCapable();

jdk/src/java.base/share/classes/sun/misc/JavaNetAccess.java

@@ -26,17 +26,10 @@
 package sun.misc;
 
 import java.net.URLClassLoader;
-import java.net.InetAddress;
 
 public interface JavaNetAccess {
     /**
      * return the URLClassPath belonging to the given loader
      */
     URLClassPath getURLClassPath (URLClassLoader u);
-
-    /**
-     * Return the original application specified hostname of
-     * the given InetAddress object.
-     */
-    String getOriginalHostName(InetAddress ia);
 }

jdk/src/java.base/share/classes/sun/misc/JavaNetInetAddressAccess.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2015, 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 sun.misc;
+
+import java.net.InetAddress;
+
+public interface JavaNetInetAddressAccess {
+    /**
+     * Return the original application specified hostname of
+     * the given InetAddress object.
+     */
+    String getOriginalHostName(InetAddress ia);
+}

jdk/src/java.base/share/classes/sun/misc/SharedSecrets.java

@@ -48,6 +48,7 @@ public class SharedSecrets {
     private static JavaLangRefAccess javaLangRefAccess;
     private static JavaIOAccess javaIOAccess;
     private static JavaNetAccess javaNetAccess;
+    private static JavaNetInetAddressAccess javaNetInetAddressAccess;
     private static JavaNetHttpCookieAccess javaNetHttpCookieAccess;
     private static JavaNioAccess javaNioAccess;
     private static JavaIOFileDescriptorAccess javaIOFileDescriptorAccess;
@@ -92,9 +93,19 @@ public class SharedSecrets {
     }
 
     public static JavaNetAccess getJavaNetAccess() {
+        if (javaNetAccess == null)
+            unsafe.ensureClassInitialized(java.net.URLClassLoader.class);
         return javaNetAccess;
     }
 
+    public static void setJavaNetInetAddressAccess(JavaNetInetAddressAccess jna) {
+        javaNetInetAddressAccess = jna;
+    }
+
+    public static JavaNetInetAddressAccess getJavaNetInetAddressAccess() {
+        return javaNetInetAddressAccess;
+    }
+
     public static void setJavaNetHttpCookieAccess(JavaNetHttpCookieAccess a) {
         javaNetHttpCookieAccess = a;
     }

jdk/src/java.base/share/classes/sun/security/ssl/SSLSocketImpl.java

@@ -42,7 +42,7 @@ import javax.crypto.BadPaddingException;
 import javax.net.ssl.*;
 import sun.misc.ManagedLocalsThread;
 
-import sun.misc.JavaNetAccess;
+import sun.misc.JavaNetInetAddressAccess;
 import sun.misc.SharedSecrets;
 
 /**
@@ -2096,7 +2096,7 @@ final public class SSLSocketImpl extends BaseSSLSocketImpl {
         /*
          * Get the original hostname via sun.misc.SharedSecrets.
          */
-        JavaNetAccess jna = SharedSecrets.getJavaNetAccess();
+        JavaNetInetAddressAccess jna = SharedSecrets.getJavaNetInetAddressAccess();
         String originalHostname = jna.getOriginalHostName(inetAddress);
 
         /*