Merge

src/java.base/share/classes/java/util/ArrayList.java

@@ -1143,6 +1143,23 @@ public class ArrayList<E> extends AbstractList<E>
             return modified;
         }
 
+        public Object[] toArray() {
+            checkForComodification();
+            return Arrays.copyOfRange(root.elementData, offset, offset + size);
+        }
+
+        @SuppressWarnings("unchecked")
+        public <T> T[] toArray(T[] a) {
+            checkForComodification();
+            if (a.length < size)
+                return (T[]) Arrays.copyOfRange(
+                        root.elementData, offset, offset + size, a.getClass());
+            System.arraycopy(root.elementData, offset, a, 0, size);
+            if (a.length > size)
+                a[size] = null;
+            return a;
+        }
+
         public Iterator<E> iterator() {
             return listIterator();
         }

src/java.base/share/classes/java/util/Base64.java

@@ -116,8 +116,8 @@ public class Base64 {
      *
      * @param   lineLength
      *          the length of each output line (rounded down to nearest multiple
-     *          of 4). If {@code lineLength <= 0} the output will not be separated
-     *          in lines
+     *          of 4). If the rounded down line length is not a positive value,
+     *          the output will not be separated in lines
      * @param   lineSeparator
      *          the line separator for each output line
      *
@@ -135,10 +135,12 @@ public class Base64 {
                  throw new IllegalArgumentException(
                      "Illegal base64 line separator character 0x" + Integer.toString(b, 16));
          }
+         // round down to nearest multiple of 4
+         lineLength &= ~0b11;
          if (lineLength <= 0) {
              return Encoder.RFC4648;
          }
-         return new Encoder(false, lineSeparator, lineLength >> 2 << 2, true);
+         return new Encoder(false, lineSeparator, lineLength, true);
     }
 
     /**

src/java.base/share/classes/sun/nio/cs/DoubleByte.java

@@ -236,10 +236,8 @@ public class DoubleByte {
                         int b2 = src[sp++] & 0xff;
                         if (b2 < b2Min || b2 > b2Max ||
                             (c = b2c[b1][b2 - b2Min]) == UNMAPPABLE_DECODING) {
-                            if (b2c[b1] == B2C_UNMAPPABLE ||  // isNotLeadingByte
-                                b2c[b2] != B2C_UNMAPPABLE ||  // isLeadingByte
-                                decodeSingle(b2) != UNMAPPABLE_DECODING) {
-                               sp--;
+                            if (crMalformedOrUnmappable(b1, b2).length() == 1) {
+                                sp--;
                             }
                         }
                     }
@@ -472,6 +470,13 @@ public class DoubleByte {
             b2cSB_UNMAPPABLE = new char[0x100];
             Arrays.fill(b2cSB_UNMAPPABLE, UNMAPPABLE_DECODING);
         }
+
+        // always returns unmappableForLenth(2) for doublebyte_only
+        @Override
+        protected CoderResult crMalformedOrUnmappable(int b1, int b2) {
+            return CoderResult.unmappableForLength(2);
+        }
+
         public Decoder_DBCSONLY(Charset cs, char[][] b2c, char[] b2cSB, int b2Min, int b2Max,
                                 boolean isASCIICompatible) {
             super(cs, 0.5f, 1.0f, b2c, b2cSB_UNMAPPABLE, b2Min, b2Max, isASCIICompatible);