/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.reef.tang.exceptions;

/**
 * Thrown when an injection fails.  Injections commonly fail for two reasons.
 * The first is that the InjectionPlan that Tang produced is ambiguous or
 * infeasible.  The second is that a constructor invoked by Tang itself threw
 * an exception.
 * <p>
 * A third, less common issue arises when constructors obtain a handle to the
 * Tang Injector that created them, and then attempt to modify its state.
 * Doing so is illegal, and results in a runtime exception that Tang converts
 * into an InjectionException.  Code involved in such exceptions is typically
 * attempting to perform cyclic object injections, and should use an
 * InjectionFuture instead.
 */
public class InjectionException extends Exception {
  private static final long serialVersionUID = 1L;

  public InjectionException(final String msg, final Throwable cause) {
    super(msg, cause);
  }

  public InjectionException(final String msg) {
    super(msg);
  }
}