Examples of java.lang.invoke.MethodType.parameterCount()

java.lang.invoke.MethodType.parameterCount()
Returns the number of parameter types in this method type. @return the number of parameter types

    private static MethodHandle dropReceiver(final MethodHandle mh, final Class<?> receiverClass) {
        MethodHandle newHandle = MethodHandles.dropArguments(mh, 0, receiverClass);
        // NOTE: this is a workaround for the fact that dropArguments doesn't preserve vararg collector state.
        if(mh.isVarargsCollector() && !newHandle.isVarargsCollector()) {
            final MethodType type = mh.type();
            newHandle = newHandle.asVarargsCollector(type.parameterType(type.parameterCount() - 1));
        }
        return newHandle;
    }
}

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    private static boolean isApplicableDynamically(LinkerServices linkerServices, MethodType callSiteType,
            SingleDynamicMethod m) {
        final MethodType methodType = m.getMethodType();
        final boolean varArgs = m.isVarArgs();
        final int fixedArgLen = methodType.parameterCount() - (varArgs ? 1 : 0);
        final int callSiteArgLen = callSiteType.parameterCount();


        // Arity checks
        if(varArgs) {
            if(callSiteArgLen < fixedArgLen) {

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     * @param linkerServices the linker services used for type conversions
     * @return the adapted method handle.
     */
    static MethodHandle getInvocation(MethodHandle target, MethodType callSiteType, LinkerServices linkerServices) {
        final MethodType methodType = target.type();
        final int paramsLen = methodType.parameterCount();
        final boolean varArgs = target.isVarargsCollector();
        final MethodHandle fixTarget = varArgs ? target.asFixedArity() : target;
        final int fixParamsLen = varArgs ? paramsLen - 1 : paramsLen;
        final int argsLen = callSiteType.parameterCount();
        if(argsLen < fixParamsLen) {

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     * @param parameterCount the total number of arguments in the new method handle
     * @return a collecting method handle
     */
    static MethodHandle collectArguments(MethodHandle target, final int parameterCount) {
        final MethodType methodType = target.type();
        final int fixParamsLen = methodType.parameterCount() - 1;
        final Class<?> arrayType = methodType.parameterType(fixParamsLen);
        return target.asCollector(arrayType, parameterCount - fixParamsLen);
    }


    private static MethodHandle createConvertingInvocation(final MethodHandle sizedMethod,

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