Hi, Correction to the specification of ConstantBootstraps.invoke [1], the lookup parameter is not used: diff -r b75c9e2e3b1f src/java.base/share/classes/java/lang/invoke/ConstantBootstraps.java --- a/src/java.base/share/classes/java/lang/invoke/ConstantBootstraps.java Tue Feb 20 21:47:54 2018 +0100 +++ b/src/java.base/share/classes/java/lang/invoke/ConstantBootstraps.java Tue Feb 20 14:38:56 2018 -0800 @@ -209,8 +209,7 @@ * Returns the result of invoking a method handle with the provided * arguments. * - * @param lookup the lookup context describing the class performing the - * operation (normally stacked by the JVM) + * @param lookup unused * @param name unused * @param type the type of the value to be returned, which must be * compatible with the return type of the method handle CSR is here: https://bugs.openjdk.java.net/browse/JDK-8198469 Paul. [1] /** * Returns the result of invoking a method handle with the provided * arguments. * * @param lookup unused * @param name unused * @param type the type of the value to be returned, which must be * compatible with the return type of the method handle * @param handle the method handle to be invoked * @param args the arguments to pass to the method handle, as if with * {@link MethodHandle#invokeWithArguments}. Each argument may be * {@code null}. * @return the result of invoking the method handle * @throws WrongMethodTypeException if the handle's return type cannot be * adjusted to the desired type * @throws ClassCastException if an argument cannot be converted by * reference casting * @throws Throwable anything thrown by the method handle invocation */ public static Object invoke(MethodHandles.Lookup lookup, String name, Class<?> type, MethodHandle handle, Object... args) throws Throwable {