/**
 * many collection utility class
 *
 * @see com.jn.langx.util.collection.Pipeline java 6,7 's Stream API, simliar to java 8's Stream API
 * @see com.jn.langx.util.collection.Differ diff two collection, map, object
 * @see com.jn.langx.util.collection.Tuple java's Tuple API
 * @see com.jn.langx.util.collection.Collects too many utility methods in it
 */
package com.jn.langx.util.collection;