Java Utililty Methods Reflection Method Parameter

List<Class<?>> params = Arrays.asList(parameters);
List<Method> methods = new ArrayList<>();
for (Method m : c.getMethods()) {
    for (Class<?> p : m.getParameterTypes()) {
        if (params.contains(p))
            methods.add(m);
return methods;

Method method = null;
for (Class<?> clazz = type; clazz != Object.class; clazz = clazz.getSuperclass()) {
    try {
        method = clazz.getDeclaredMethod(name, parameterTypes);
        break;
    } catch (Exception e) {
return method;

Method[] methods = declaringClass.getMethods();
for (Method method : methods) {
    Class<?>[] parameters = method.getParameterTypes();
    if (parameters.length == 1 && parameters[0].equals(parameterClass)) {
        return method;
return null;
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