/* * Copyright Terracotta, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.ehcache.jsr107; /** * @author teck */ final class Unwrap { static <T> T unwrap(Class<T> clazz, Object... obj) { if (clazz == null || obj == null) { throw new NullPointerException(); } for (Object o : obj) { if (o != null && clazz.isAssignableFrom(o.getClass())) { return clazz.cast(o); } } throw new IllegalArgumentException("Cannot unwrap to " + clazz); } private Unwrap() { // } }