001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.reef.tang.exceptions; 020 021/** 022 * Thrown when an injection fails. Injections commonly fail for two reasons. 023 * The first is that the InjectionPlan that Tang produced is ambiguous or 024 * infeasible. The second is that a constructor invoked by Tang itself threw 025 * an exception. 026 * <p> 027 * A third, less common issue arises when constructors obtain a handle to the 028 * Tang Injector that created them, and then attempt to modify its state. 029 * Doing so is illegal, and results in a runtime exception that Tang converts 030 * into an InjectionException. Code involved in such exceptions is typically 031 * attempting to perform cyclic object injections, and should use an 032 * InjectionFuture instead. 033 */ 034public class InjectionException extends Exception { 035 private static final long serialVersionUID = 1L; 036 037 public InjectionException(final String msg, final Throwable cause) { 038 super(msg, cause); 039 } 040 041 public InjectionException(final String msg) { 042 super(msg); 043 } 044}