Here you can find the source of isSupportedParameter(Class type)
public static boolean isSupportedParameter(Class type)
//package com.java2s; //License from project: Apache License import java.util.*; public class Main { private final static Set<Class> supportedParamTypes = new HashSet<Class>(); public static boolean isSupportedParameter(Class type) { if (supportedParamTypes.contains(type)) { return true; }//from w w w . j a va 2 s . com return false; } }