feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/sun/net/dns/ResolverConfiguration.java

@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2002, 2010, 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.net.dns;
+
+import java.util.List;
+
+/**
+ * The configuration of the client resolver.
+ *
+ * <p>A ResolverConfiguration is a singleton that represents the
+ * configuration of the client resolver. The ResolverConfiguration
+ * is opened by invoking the {@link #open() open} method.
+ *
+ * @since 1.4
+ */
+
+public abstract class ResolverConfiguration {
+
+    private static final Object lock = new Object();
+
+    private static ResolverConfiguration provider;
+
+    protected ResolverConfiguration() { }
+
+    /**
+     * Opens the resolver configuration.
+     *
+     * @return the resolver configuration
+     */
+    public static ResolverConfiguration open() {
+        synchronized (lock) {
+            if (provider == null) {
+                provider = new sun.net.dns.ResolverConfigurationImpl();
+            }
+            return provider;
+        }
+    }
+
+    /**
+     * Returns a list corresponding to the domain search path. The
+     * list is ordered by the search order used for host name lookup.
+     * Each element in the list returns a {@link java.lang.String}
+     * containing a domain name or suffix.
+     *
+     * @return list of domain names
+     */
+    public abstract List<String> searchlist();
+
+    /**
+     * Returns a list of name servers used for host name lookup.
+     * Each element in the list returns a {@link java.lang.String}
+     * containing the textual representation of the IP address of
+     * the name server.
+     *
+     * @return list of the name servers
+     */
+    public abstract List<String> nameservers();
+
+
+    /**
+     * Options representing certain resolver variables of
+     * a {@link ResolverConfiguration}.
+     */
+    public static abstract class Options {
+
+        /**
+         * Returns the maximum number of attempts the resolver
+         * will connect to each name server before giving up
+         * and returning an error.
+         *
+         * @return the resolver attempts value or -1 is unknown
+         */
+        public int attempts() {
+            return -1;
+        }
+
+        /**
+         * Returns the basic retransmit timeout, in milliseconds,
+         * used by the resolver. The resolver will typically use
+         * an exponential backoff algorithm where the timeout is
+         * doubled for every retransmit attempt. The basic
+         * retransmit timeout, returned here, is the initial
+         * timeout for the exponential backoff algorithm.
+         *
+         * @return the basic retransmit timeout value or -1
+         *         if unknown
+         */
+        public int retrans() {
+            return -1;
+        }
+    }
+
+    /**
+     * Returns the {@link #Options} for the resolver.
+     *
+     * @return options for the resolver
+     */
+    public abstract Options options();
+}

jdkSrc/jdk8/sun/net/dns/ResolverConfigurationImpl.java

@@ -0,0 +1,183 @@
+/*
+ * Copyright (c) 2002, 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 sun.net.dns;
+
+import java.util.List;
+import java.util.LinkedList;
+import java.util.StringTokenizer;
+
+/*
+ * An implementation of sun.net.ResolverConfiguration for Windows.
+ */
+
+public class ResolverConfigurationImpl
+    extends ResolverConfiguration
+{
+    // Lock helds whilst loading configuration or checking
+    private static Object lock = new Object();
+
+    // Resolver options
+    private final Options opts;
+
+    // Addreses have changed
+    private static boolean changed = false;
+
+    // Time of last refresh.
+    private static long lastRefresh = -1;
+
+    // Cache timeout (120 seconds) - should be converted into property
+    // or configured as preference in the future.
+    private static final int TIMEOUT = 120000;
+
+    // DNS suffix list and name servers populated by native method
+    private static String os_searchlist;
+    private static String os_nameservers;
+
+    // Cached lists
+    private static LinkedList<String> searchlist;
+    private static LinkedList<String> nameservers;
+
+    // Parse string that consists of token delimited by space or commas
+    // and return LinkedHashMap
+    private LinkedList<String> stringToList(String str) {
+        LinkedList<String> ll = new LinkedList<>();
+
+        // comma and space are valid delimites
+        StringTokenizer st = new StringTokenizer(str, ", ");
+        while (st.hasMoreTokens()) {
+            String s = st.nextToken();
+            if (!ll.contains(s)) {
+                ll.add(s);
+            }
+        }
+        return ll;
+    }
+
+    // Load DNS configuration from OS
+
+    private void loadConfig() {
+        assert Thread.holdsLock(lock);
+
+        // if address have changed then DNS probably changed aswell;
+        // otherwise check if cached settings have expired.
+        //
+        if (changed) {
+            changed = false;
+        } else {
+            if (lastRefresh >= 0) {
+                long currTime = System.currentTimeMillis();
+                if ((currTime - lastRefresh) < TIMEOUT) {
+                    return;
+                }
+            }
+        }
+
+        // load DNS configuration, update timestamp, create
+        // new HashMaps from the loaded configuration
+        //
+        loadDNSconfig0();
+
+        lastRefresh = System.currentTimeMillis();
+        searchlist = stringToList(os_searchlist);
+        nameservers = stringToList(os_nameservers);
+        os_searchlist = null;                       // can be GC'ed
+        os_nameservers = null;
+    }
+
+    ResolverConfigurationImpl() {
+        opts = new OptionsImpl();
+    }
+
+    @SuppressWarnings("unchecked") // clone()
+    public List<String> searchlist() {
+        synchronized (lock) {
+            loadConfig();
+
+            // List is mutable so return a shallow copy
+            return (List<String>)searchlist.clone();
+        }
+    }
+
+    @SuppressWarnings("unchecked") // clone()
+    public List<String> nameservers() {
+        synchronized (lock) {
+            loadConfig();
+
+            // List is mutable so return a shallow copy
+            return (List<String>)nameservers.clone();
+         }
+    }
+
+    public Options options() {
+        return opts;
+    }
+
+    // --- Address Change Listener
+
+    static class AddressChangeListener extends Thread {
+        public void run() {
+            for (;;) {
+                // wait for configuration to change
+                if (notifyAddrChange0() != 0)
+                    return;
+                synchronized (lock) {
+                    changed = true;
+                }
+            }
+        }
+    }
+
+
+    // --- Native methods --
+
+    static native void init0();
+
+    static native void loadDNSconfig0();
+
+    static native int notifyAddrChange0();
+
+    static {
+        java.security.AccessController.doPrivileged(
+            new java.security.PrivilegedAction<Void>() {
+                public Void run() {
+                    System.loadLibrary("net");
+                    return null;
+                }
+            });
+        init0();
+
+        // start the address listener thread
+        AddressChangeListener thr = new AddressChangeListener();
+        thr.setDaemon(true);
+        thr.start();
+    }
+}
+
+/**
+ * Implementation of {@link ResolverConfiguration.Options}
+ */
+class OptionsImpl extends ResolverConfiguration.Options {
+}