Add java.nio.charsets.StandardCharsets.

Bug: 3484927
Change-Id: I5820267491b850b8fcc696fa48962710de123009

dalvik/src/main/java/dalvik/system/BlockGuard.java

@@ -22,7 +22,6 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.math.BigInteger;
 import java.net.SocketException;
-import java.nio.charset.Charsets;
 
 /**
  * Mechanism to let threads set restrictions on what code is allowed

luni/src/main/java/java/net/InetUnixAddress.java

@@ -16,7 +16,7 @@
 
 package java.net;
 
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 
 import static libcore.io.OsConstants.*;
 
@@ -29,7 +29,7 @@ public final class InetUnixAddress extends InetAddress {
    * Constructs an AF_UNIX InetAddress for the given path.
    */
   public InetUnixAddress(String path) {
-    this(path.getBytes(Charsets.UTF_8));
+    this(path.getBytes(StandardCharsets.UTF_8));
   }
 
   /**
@@ -43,6 +43,6 @@ public final class InetUnixAddress extends InetAddress {
    * Returns a string form of this InetAddress.
    */
   @Override public String toString() {
-    return "InetUnixAddress[" + new String(ipaddress, Charsets.UTF_8) + "]";
+    return "InetUnixAddress[" + new String(ipaddress, StandardCharsets.UTF_8) + "]";
   }
 }

luni/src/main/java/java/net/Socks4Message.java

@@ -18,7 +18,7 @@
 package java.net;
 
 import java.nio.ByteOrder;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import libcore.io.Memory;
 
 class Socks4Message {
@@ -188,7 +188,7 @@ class Socks4Message {
         while (index < lastIndex && (buffer[index] != 0)) {
             index++;
         }
-        return new String(buffer, offset, index - offset, Charsets.ISO_8859_1);
+        return new String(buffer, offset, index - offset, StandardCharsets.ISO_8859_1);
     }
 
     /**
@@ -202,7 +202,7 @@ class Socks4Message {
      * Put a string into the buffer at the offset given.
      */
     private void setString(int offset, int maxLength, String theString) {
-        byte[] stringBytes = theString.getBytes(Charsets.ISO_8859_1);
+        byte[] stringBytes = theString.getBytes(StandardCharsets.ISO_8859_1);
         int length = Math.min(stringBytes.length, maxLength);
         System.arraycopy(stringBytes, 0, buffer, offset, length);
         buffer[offset + length] = 0;

luni/src/main/java/java/net/URLClassLoader.java

@@ -26,7 +26,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.UnsupportedEncodingException;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import java.security.CodeSource;
 import java.security.PermissionCollection;
 import java.security.SecureClassLoader;
@@ -76,7 +76,7 @@ public class URLClassLoader extends SecureClassLoader {
                 String parentURLString = getParentURL(url).toExternalForm();
                 String prefix = "jar:" + parentURLString + "/";
                 is = jf.getInputStream(indexEntry);
-                in = new BufferedReader(new InputStreamReader(is, Charsets.UTF_8));
+                in = new BufferedReader(new InputStreamReader(is, StandardCharsets.UTF_8));
                 HashMap<String, ArrayList<URL>> pre_map = new HashMap<String, ArrayList<URL>>();
                 // Ignore the 2 first lines (index version)
                 if (in.readLine() == null) return null;

luni/src/main/java/java/net/URLEncoder.java

@@ -19,7 +19,7 @@ package java.net;
 
 import java.io.UnsupportedEncodingException;
 import java.nio.charset.Charset;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import libcore.net.UriCodec;
 
 /**
@@ -47,7 +47,7 @@ public class URLEncoder {
      */
     @Deprecated
     public static String encode(String s) {
-        return ENCODER.encode(s, Charsets.UTF_8);
+        return ENCODER.encode(s, StandardCharsets.UTF_8);
     }
 
     /**

luni/src/main/java/java/nio/charset/StandardCharsets.java

+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package java.nio.charset;
+
+/**
+ * Convenient access to the most important built-in charsets.
+ * @since 1.7
+ */
+public final class StandardCharsets {
+  private StandardCharsets() {
+  }
+
+  /**
+   * The ISO-8859-1 charset.
+   */
+  public static final Charset ISO_8859_1 = Charset.forName("ISO-8859-1");
+
+  /**
+   * The US-ASCII charset.
+   */
+  public static final Charset US_ASCII = Charset.forName("US-ASCII");
+
+  /**
+   * The UTF-8 charset.
+   */
+  public static final Charset UTF_8 = Charset.forName("UTF-8");
+
+  /**
+   * The UTF-16 charset.
+   */
+  public static final Charset UTF_16 = Charset.forName("UTF-16");
+
+  /**
+   * The UTF-16BE (big-endian) charset.
+   */
+  public static final Charset UTF_16BE = Charset.forName("UTF-16BE");
+
+  /**
+   * The UTF-16LE (little-endian) charset.
+   */
+  public static final Charset UTF_16LE = Charset.forName("UTF-16LE");
+}

luni/src/main/java/java/util/ResourceBundle.java

@@ -24,8 +24,7 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.net.URL;
 import java.net.URLConnection;
-import java.nio.charset.Charsets;
-import static java.nio.charset.Charsets.UTF_8;
+import java.nio.charset.StandardCharsets;
 import libcore.io.IoUtils;
 
 /**
@@ -518,7 +517,7 @@ public abstract class ResourceBundle {
                     : ClassLoader.getSystemResourceAsStream(fileName);
             if (stream != null) {
                 try {
-                    bundle = new PropertyResourceBundle(new InputStreamReader(stream, UTF_8));
+                    bundle = new PropertyResourceBundle(new InputStreamReader(stream, StandardCharsets.UTF_8));
                     bundle.setLocale(locale);
                 } catch (IOException ignored) {
                 } finally {

luni/src/main/java/java/util/jar/InitManifest.java

@@ -18,7 +18,7 @@
 package java.util.jar;
 
 import java.io.IOException;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import java.util.Map;
 
 /**
@@ -110,7 +110,7 @@ class InitManifest {
                 continue;
             }
 
-            String name = new String(buf, mark, pos - mark - 1, Charsets.US_ASCII);
+            String name = new String(buf, mark, pos - mark - 1, StandardCharsets.US_ASCII);
 
             if (buf[pos++] != ' ') {
                 throw new IOException(String.format("Invalid value for attribute '%s'", name));
@@ -164,6 +164,6 @@ class InitManifest {
         }
 
         valueBuffer.write(buf, mark, last - mark);
-        value = valueBuffer.toString(Charsets.UTF_8);
+        value = valueBuffer.toString(StandardCharsets.UTF_8);
     }
 }

luni/src/main/java/java/util/jar/JarVerifier.java

@@ -20,7 +20,7 @@ package java.util.jar;
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.OutputStream;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import java.security.GeneralSecurityException;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
@@ -206,7 +206,7 @@ class JarVerifier {
             if (hash == null) {
                 continue;
             }
-            byte[] hashBytes = hash.getBytes(Charsets.ISO_8859_1);
+            byte[] hashBytes = hash.getBytes(StandardCharsets.ISO_8859_1);
 
             try {
                 return new VerifierEntry(name, MessageDigest.getInstance(algorithm), hashBytes,
@@ -408,7 +408,7 @@ class JarVerifier {
                 md.update(data, start, end - start);
             }
             byte[] b = md.digest();
-            byte[] hashBytes = hash.getBytes(Charsets.ISO_8859_1);
+            byte[] hashBytes = hash.getBytes(StandardCharsets.ISO_8859_1);
             return MessageDigest.isEqual(b, Base64.decode(hashBytes));
         }
         return ignorable;

luni/src/main/java/java/util/jar/Manifest.java

@@ -25,8 +25,8 @@ import java.lang.reflect.Field;
 import java.nio.ByteBuffer;
 import java.nio.CharBuffer;
 import java.nio.charset.CharsetEncoder;
-import java.nio.charset.Charsets;
 import java.nio.charset.CoderResult;
+import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
@@ -302,7 +302,7 @@ public class Manifest implements Cloneable {
      *             If an error occurs writing the {@code Manifest}.
      */
     static void write(Manifest manifest, OutputStream out) throws IOException {
-        CharsetEncoder encoder = Charsets.UTF_8.newEncoder();
+        CharsetEncoder encoder = StandardCharsets.UTF_8.newEncoder();
         ByteBuffer buffer = ByteBuffer.allocate(LINE_LENGTH_LIMIT);
 
         Attributes.Name versionName = Attributes.Name.MANIFEST_VERSION;
@@ -339,7 +339,7 @@ public class Manifest implements Cloneable {
     private static void writeEntry(OutputStream os, Attributes.Name name,
             String value, CharsetEncoder encoder, ByteBuffer bBuf) throws IOException {
         String nameString = name.getName();
-        os.write(nameString.getBytes(Charsets.US_ASCII));
+        os.write(nameString.getBytes(StandardCharsets.US_ASCII));
         os.write(VALUE_SEPARATOR);
 
         encoder.reset();

luni/src/main/java/java/util/prefs/AbstractPreferences.java

@@ -19,7 +19,7 @@ package java.util.prefs;
 
 import java.io.IOException;
 import java.io.OutputStream;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import java.util.Collection;
 import java.util.EventListener;
 import java.util.EventObject;
@@ -441,7 +441,7 @@ public abstract class AbstractPreferences extends Preferences {
             return EmptyArray.BYTE;
         }
         try {
-            byte[] bavalue = svalue.getBytes(Charsets.US_ASCII);
+            byte[] bavalue = svalue.getBytes(StandardCharsets.US_ASCII);
             if (bavalue.length % 4 != 0) {
                 return deflt;
             }

luni/src/main/java/java/util/zip/ZipEntry.java

@@ -20,7 +20,7 @@ package java.util.zip;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.ByteOrder;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.GregorianCalendar;
@@ -184,7 +184,7 @@ public class ZipEntry implements ZipConstants, Cloneable {
             return;
         }
 
-        byte[] commentBytes = comment.getBytes(Charsets.UTF_8);
+        byte[] commentBytes = comment.getBytes(StandardCharsets.UTF_8);
         if (commentBytes.length > 0xffff) {
             throw new IllegalArgumentException("Comment too long: " + commentBytes.length);
         }
@@ -383,14 +383,14 @@ public class ZipEntry implements ZipConstants, Cloneable {
 
         byte[] nameBytes = new byte[nameLength];
         Streams.readFully(in, nameBytes, 0, nameBytes.length);
-        name = new String(nameBytes, 0, nameBytes.length, Charsets.UTF_8);
+        name = new String(nameBytes, 0, nameBytes.length, StandardCharsets.UTF_8);
 
         // The RI has always assumed UTF-8. (If GPBF_UTF8_FLAG isn't set, the encoding is
         // actually IBM-437.)
         if (commentByteCount > 0) {
             byte[] commentBytes = new byte[commentByteCount];
             Streams.readFully(in, commentBytes, 0, commentByteCount);
-            comment = new String(commentBytes, 0, commentBytes.length, Charsets.UTF_8);
+            comment = new String(commentBytes, 0, commentBytes.length, StandardCharsets.UTF_8);
         }
 
         if (extraLength > 0) {

luni/src/main/java/java/util/zip/ZipOutputStream.java

@@ -20,7 +20,7 @@ package java.util.zip;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.HashSet;
 import libcore.util.EmptyArray;
@@ -182,7 +182,7 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
         String comment = currentEntry.getComment();
         byte[] commentBytes = EmptyArray.BYTE;
         if (comment != null) {
-            commentBytes = comment.getBytes(Charsets.UTF_8);
+            commentBytes = comment.getBytes(StandardCharsets.UTF_8);
         }
         writeShort(cDir, commentBytes.length); // Comment length.
         writeShort(cDir, 0); // Disk Start
@@ -294,7 +294,7 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
             // TODO: support Zip64.
             throw new ZipException("Too many entries for the zip file format's 16-bit entry count");
         }
-        nameBytes = ze.name.getBytes(Charsets.UTF_8);
+        nameBytes = ze.name.getBytes(StandardCharsets.UTF_8);
         nameLength = nameBytes.length;
         if (nameLength > 0xffff) {
             throw new IllegalArgumentException("Name too long: " + nameLength + " UTF-8 bytes");
@@ -353,7 +353,7 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
             return;
         }
 
-        byte[] newCommentBytes = comment.getBytes(Charsets.UTF_8);
+        byte[] newCommentBytes = comment.getBytes(StandardCharsets.UTF_8);
         if (newCommentBytes.length > 0xffff) {
             throw new IllegalArgumentException("Comment too long: " + newCommentBytes.length + " bytes");
         }

luni/src/main/java/libcore/io/Base64.java

@@ -21,7 +21,7 @@
 
 package libcore.io;
 
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import libcore.util.EmptyArray;
 
 /**
@@ -156,6 +156,6 @@ public final class Base64 {
                 out[index++] = '=';
                 break;
         }
-        return new String(out, 0, index, Charsets.US_ASCII);
+        return new String(out, 0, index, StandardCharsets.US_ASCII);
     }
 }

luni/src/main/java/libcore/io/IoUtils.java

@@ -22,7 +22,7 @@ import java.io.IOException;
 import java.io.InterruptedIOException;
 import java.io.RandomAccessFile;
 import java.net.Socket;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import java.util.Random;
 import static libcore.io.OsConstants.*;
 
@@ -110,7 +110,7 @@ public final class IoUtils {
      * Returns the contents of 'path' as a string. The contents are assumed to be UTF-8.
      */
     public static String readFileAsString(String path) throws IOException {
-        return readFileAsBytes(path).toString(Charsets.UTF_8);
+        return readFileAsBytes(path).toString(StandardCharsets.UTF_8);
     }
 
     private static UnsafeByteSequence readFileAsBytes(String path) throws IOException {

luni/src/main/java/libcore/io/StrictLineReader.java

@@ -22,7 +22,7 @@ import java.io.EOFException;
 import java.io.InputStream;
 import java.io.IOException;
 import java.nio.charset.Charset;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 
 /**
  * Buffers input from an {@link InputStream} for reading lines.
@@ -78,7 +78,7 @@ public class StrictLineReader implements Closeable {
      * @throws IllegalArgumentException for negative or zero {@code capacity}.
      */
     public StrictLineReader(InputStream in, int capacity) {
-        this(in, capacity, Charsets.US_ASCII);
+        this(in, capacity, StandardCharsets.US_ASCII);
     }
 
     /**
@@ -114,8 +114,8 @@ public class StrictLineReader implements Closeable {
         if (capacity < 0) {
             throw new IllegalArgumentException("capacity <= 0");
         }
-        if (!(charset.equals(Charsets.US_ASCII) || charset.equals(Charsets.UTF_8) ||
-                charset.equals(Charsets.ISO_8859_1))) {
+        if (!(charset.equals(StandardCharsets.US_ASCII) || charset.equals(StandardCharsets.UTF_8) ||
+                charset.equals(StandardCharsets.ISO_8859_1))) {
             throw new IllegalArgumentException("Unsupported encoding");
         }
 
@@ -240,4 +240,3 @@ public class StrictLineReader implements Closeable {
         end = result;
     }
 }
-

luni/src/main/java/libcore/net/UriCodec.java

@@ -20,7 +20,7 @@ package libcore.net;
 import java.io.ByteArrayOutputStream;
 import java.net.URISyntaxException;
 import java.nio.charset.Charset;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 
 /**
  * Encodes and decodes {@code application/x-www-form-urlencoded} content.
@@ -135,11 +135,11 @@ public abstract class UriCodec {
     }
 
     public final void appendEncoded(StringBuilder builder, String s) {
-        appendEncoded(builder, s, Charsets.UTF_8, false);
+        appendEncoded(builder, s, StandardCharsets.UTF_8, false);
     }
 
     public final void appendPartiallyEncoded(StringBuilder builder, String s) {
-        appendEncoded(builder, s, Charsets.UTF_8, true);
+        appendEncoded(builder, s, StandardCharsets.UTF_8, true);
     }
 
     /**
@@ -203,7 +203,7 @@ public abstract class UriCodec {
     }
 
     public static String decode(String s) {
-        return decode(s, false, Charsets.UTF_8, true);
+        return decode(s, false, StandardCharsets.UTF_8, true);
     }
 
     private static void appendHex(StringBuilder builder, String s, Charset charset) {

luni/src/main/java/libcore/net/url/FtpURLConnection.java

@@ -35,7 +35,7 @@ import java.net.URISyntaxException;
 import java.net.URL;
 import java.net.URLConnection;
 import java.net.URLStreamHandler;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import java.security.Permission;
 import java.util.ArrayList;
 import java.util.Iterator;
@@ -350,7 +350,7 @@ public class FtpURLConnection extends URLConnection {
             }
             code[i] = (byte) tmp;
         }
-        replyCode = new String(code, 0, code.length, Charsets.ISO_8859_1);
+        replyCode = new String(code, 0, code.length, StandardCharsets.ISO_8859_1);
 
         boolean multiline = false;
         if (ctrlInput.read() == '-') {
@@ -497,6 +497,6 @@ public class FtpURLConnection extends URLConnection {
     }
 
     private void write(String command) throws IOException {
-        ctrlOutput.write(command.getBytes(Charsets.ISO_8859_1));
+        ctrlOutput.write(command.getBytes(StandardCharsets.ISO_8859_1));
     }
 }

luni/src/main/java/libcore/util/ZoneInfoDB.java

@@ -21,7 +21,7 @@ import java.io.RandomAccessFile;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.nio.channels.FileChannel.MapMode;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -111,11 +111,11 @@ public final class ZoneInfoDB {
 
       byte[] tzdata_version = new byte[12];
       it.readByteArray(tzdata_version, 0, tzdata_version.length);
-      String magic = new String(tzdata_version, 0, 6, Charsets.US_ASCII);
+      String magic = new String(tzdata_version, 0, 6, StandardCharsets.US_ASCII);
       if (!magic.equals("tzdata") || tzdata_version[11] != 0) {
         throw new RuntimeException("bad tzdata magic: " + Arrays.toString(tzdata_version));
       }
-      version = new String(tzdata_version, 6, 5, Charsets.US_ASCII);
+      version = new String(tzdata_version, 6, 5, StandardCharsets.US_ASCII);
 
       int index_offset = it.readInt();
       int data_offset = it.readInt();
@@ -129,7 +129,7 @@ public final class ZoneInfoDB {
       byte[] bytes = new byte[zoneTabSize];
       it.seek(zoneTabOffset);
       it.readByteArray(bytes, 0, bytes.length);
-      zoneTab = new String(bytes, 0, bytes.length, Charsets.US_ASCII);
+      zoneTab = new String(bytes, 0, bytes.length, StandardCharsets.US_ASCII);
     }
 
     private void readIndex(BufferIterator it, int indexOffset, int dataOffset) {

luni/src/main/java/org/apache/harmony/security/asn1/ASN1GeneralizedTime.java

@@ -23,7 +23,7 @@
 package org.apache.harmony.security.asn1;
 
 import java.io.IOException;
-import java.nio.charset.Charsets;
+import java.nio.charset.StandardCharsets;
 import java.text.SimpleDateFormat;
 import java.util.Locale;
 import java.util.TimeZone;
@@ -99,7 +99,7 @@ public final class ASN1GeneralizedTime extends ASN1Time {
             temp = temp.substring(0, currLength);
         }
 
-        out.content = (temp + "Z").getBytes(Charsets.UTF_8);
+        out.content = (temp + "Z").getBytes(StandardCharsets.UTF_8);
         out.length = ((byte[]) out.content).length;
     }
 }