--- old/src/java.base/share/classes/java/lang/invoke/MethodHandles.java 2017-11-08 15:32:41.000000000 -0800 +++ new/src/java.base/share/classes/java/lang/invoke/MethodHandles.java 2017-11-08 15:32:40.000000000 -0800 @@ -2514,14 +2514,20 @@ } /** - * Produces a method handle constructing arrays of a desired type. + * Produces a method handle constructing arrays of a desired type, + * as if by the {@code anewarray} bytecode. * The return type of the method handle will be the array type. * The type of its sole argument will be {@code int}, which specifies the size of the array. + * + *

If the returned method handle is invoked with a negative + * array size, a {@code NegativeArraySizeException} will be thrown. + * * @param arrayClass an array type * @return a method handle which can create arrays of the given type * @throws NullPointerException if the argument is {@code null} * @throws IllegalArgumentException if {@code arrayClass} is not an array type * @see java.lang.reflect.Array#newInstance(Class, int) + * @jvms 6.5 {@code anewarray} Instruction * @since 9 */ public static @@ -2535,13 +2541,19 @@ } /** - * Produces a method handle returning the length of an array. + * Produces a method handle returning the length of an array, + * as if by the {@code arraylength} bytecode. * The type of the method handle will have {@code int} as return type, * and its sole argument will be the array type. + * + *

If the returned method handle is invoked with a {@code null} + * array reference, a {@code NullPointerException} will be thrown. + * * @param arrayClass an array type * @return a method handle which can retrieve the length of an array of the given array type * @throws NullPointerException if the argument is {@code null} * @throws IllegalArgumentException if arrayClass is not an array type + * @jvms 6.5 {@code arraylength} Instruction * @since 9 */ public static @@ -2550,14 +2562,24 @@ } /** - * Produces a method handle giving read access to elements of an array. + * Produces a method handle giving read access to elements of an array, + * as if by the {@code aaload} bytecode. * The type of the method handle will have a return type of the array's * element type. Its first argument will be the array type, * and the second will be {@code int}. + * + *

When the returned method handle is invoked, + * the array reference and array index are checked. + * A {@code NullPointerException} will be thrown if the array reference + * is {@code null} and an {@code ArrayIndexOutOfBoundsException} will be + * thrown if the index is negative or if it is greater than or equal to + * the length of the array. + * * @param arrayClass an array type * @return a method handle which can load values from the given array type * @throws NullPointerException if the argument is null * @throws IllegalArgumentException if arrayClass is not an array type + * @jvms 6.5 {@code aaload} Instruction */ public static MethodHandle arrayElementGetter(Class arrayClass) throws IllegalArgumentException { @@ -2565,14 +2587,24 @@ } /** - * Produces a method handle giving write access to elements of an array. + * Produces a method handle giving write access to elements of an array, + * as if by the {@code astore} bytecode. * The type of the method handle will have a void return type. * Its last argument will be the array's element type. * The first and second arguments will be the array type and int. + * + *

When the returned method handle is invoked, + * the array reference and array index are checked. + * A {@code NullPointerException} will be thrown if the array reference + * is {@code null} and an {@code ArrayIndexOutOfBoundsException} will be + * thrown if the index is negative or if it is greater than or equal to + * the length of the array. + * * @param arrayClass the class of an array * @return a method handle which can store values into the array type * @throws NullPointerException if the argument is null * @throws IllegalArgumentException if arrayClass is not an array type + * @jvms 6.5 {@code aastore} Instruction */ public static MethodHandle arrayElementSetter(Class arrayClass) throws IllegalArgumentException { @@ -2603,6 +2635,14 @@ * and atomic update access modes compare values using their bitwise * representation (see {@link Float#floatToRawIntBits} and * {@link Double#doubleToRawLongBits}, respectively). + * + *

When the returned {@code VarHandle} is invoked, + * the array reference and array index are checked. + * A {@code NullPointerException} will be thrown if the array reference + * is {@code null} and an {@code ArrayIndexOutOfBoundsException} will be + * thrown if the index is negative or if it is greater than or equal to + * the length of the array. + * * @apiNote * Bitwise comparison of {@code float} values or {@code double} values, * as performed by the numeric and atomic update access modes, differ