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Java example source code file (CreationException.java)

This example Java source code file (CreationException.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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Java - Java tags/keywords

collection, creationexception, immutableset, override, runtimeexception, string, unable, util

The CreationException.java Java example source code

 * Copyright (C) 2006 Google 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package com.google.inject;

import static com.google.common.base.Preconditions.checkArgument;

import com.google.common.collect.ImmutableSet;
import com.google.inject.internal.Errors;
import com.google.inject.spi.Message;

import java.util.Collection;

 * Thrown when errors occur while creating a {@link Injector}. Includes a list of encountered
 * errors. Clients should catch this exception, log it, and stop execution.
 * @author crazybob@google.com (Bob Lee)
public class CreationException extends RuntimeException {

  private final ImmutableSet<Message> messages;

  /** Creates a CreationException containing {@code messages}. */
  public CreationException(Collection<Message> messages) {
    this.messages = ImmutableSet.copyOf(messages);

  /** Returns messages for the errors that caused this exception. */
  public Collection<Message> getErrorMessages() {
    return messages;

  @Override public String getMessage() {
    return Errors.format("Unable to create injector, see the following errors", messages);

  private static final long serialVersionUID = 0;

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