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Java > Open Source Codes > edu > umd > cs > findbugs > detect > NullDerefProperty


1 /*
2  * FindBugs - Find bugs in Java programs
3  * Copyright (C) 2005, University of Maryland
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18  */

19 package edu.umd.cs.findbugs.detect;
20
21 import edu.umd.cs.findbugs.props.AbstractWarningProperty;
22 import edu.umd.cs.findbugs.props.PriorityAdjustment;
23
24 /**
25  * Warning properties for null pointer dereference and redundant null
26  * comparison warnings.
27  *
28  * @author David Hovemeyer
29  */

30 public class NullDerefProperty extends AbstractWarningProperty {
31     
32     private NullDerefProperty(String JavaDoc name, PriorityAdjustment priorityAdjustment) {
33         super(name, priorityAdjustment);
34     }
35     
36     /** Redundant null comparison is of a checked null value. */
37     public static final NullDerefProperty CHECKED_VALUE =
38         new NullDerefProperty("CHECKED_VALUE", PriorityAdjustment.RAISE_PRIORITY);
39     /** Redundant nullcheck of previously dereferenced value. */
40     public static final NullDerefProperty WOULD_HAVE_BEEN_A_KABOOM =
41         new NullDerefProperty("WOULD_HAVE_BEEN_A_KABOOM", PriorityAdjustment.RAISE_PRIORITY);
42     /** Redundant nullcheck created dead code. */
43     public static final NullDerefProperty CREATED_DEAD_CODE =
44         new NullDerefProperty("CREATED_DEAD_CODE", PriorityAdjustment.RAISE_PRIORITY);
45 }
46
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