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Java > Open Source Codes > gov > nasa > jpf > jvm > NoUncaughtExceptionsProperty


1 //
2 // Copyright (C) 2005 United States Government as represented by the
3 // Administrator of the National Aeronautics and Space Administration
4 // (NASA). All Rights Reserved.
5 //
6 // This software is distributed under the NASA Open Source Agreement
7 // (NOSA), version 1.3. The NOSA has been approved by the Open Source
8 // Initiative. See the file NOSA-1.3-JPF at the top of the distribution
9 // directory tree for the complete NOSA document.
10 //
11 // THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
12 // KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
13 // LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
14 // SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
15 // A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
16 // THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
17 // DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
18 //
19 package gov.nasa.jpf.jvm;
20
21 import gov.nasa.jpf.Config;
22 import gov.nasa.jpf.GenericProperty;
23 import gov.nasa.jpf.VM;
24
25 import java.io.PrintWriter JavaDoc;
26
27
28 /**
29  * property class to check for uncaught exceptions
30  */
31 public class NoUncaughtExceptionsProperty extends GenericProperty {
32
33   // <2do> that's a hack for now (makes us de-facto a singleton)
34 static ExceptionInfo uncaughtXi;
35   
36   public NoUncaughtExceptionsProperty (Config config) {
37     uncaughtXi = null;
38   }
39   
40   static void setExceptionInfo (ExceptionInfo xi){
41     uncaughtXi = xi;
42   }
43   
44   public String JavaDoc getErrorMessage () {
45     return "uncaught exception";
46   }
47
48   public boolean check (VM vm, Object JavaDoc arg) {
49     return (uncaughtXi == null);
50   }
51
52   public void printOn (PrintWriter JavaDoc pw) {
53     if (uncaughtXi != null) {
54       uncaughtXi.printOn(pw);
55     }
56   }
57 }
58
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