001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.wicket.resource; 018 019import java.util.Set; 020 021import org.apache.wicket.WicketRuntimeException; 022import org.apache.wicket.markup.head.HeaderItem; 023 024/** 025 * Thrown when a circular dependency is detected between resources. 026 * 027 * @author papegaaij 028 */ 029public final class CircularDependencyException extends WicketRuntimeException 030{ 031 private static final long serialVersionUID = 1L; 032 033 034 /** 035 * Construct. 036 * 037 * @param depsDone 038 * @param newDependency 039 */ 040 public CircularDependencyException(Set<HeaderItem> depsDone, HeaderItem newDependency) 041 { 042 super("Circular dependency detected in the dependency chain " + depsDone + ". " + 043 newDependency + " is already in the chain."); 044 } 045}