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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    * 
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software 
12   * distributed under the License is distributed on an "AS IS" BASIS, 
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
14   * See the License for the specific language governing permissions and 
15   * limitations under the License.
16   */
17  
18  
19  package org.apache.jdo.impl.enhancer.util;
20  
21  
22  /***
23   * Support for signalling internal implementation errors.
24   */
25  public class Assertion {
26  
27      static protected final void affirm(boolean condition) {
28          if (!condition)
29              throw new InternalError("assertion failed.");
30      }
31  
32      static protected final void affirm(boolean condition, String msg) {
33          if (!condition)
34              throw new InternalError("assertion failed: " + msg);
35      }
36  
37      static protected final void affirm(Object object) {
38          if (object == null)
39              throw new InternalError("assertion failed.");
40      }
41  
42      static protected final void affirm(Object object, String msg) {
43          if (object == null)
44              throw new InternalError("assertion failed: " + msg);
45      }
46  }