the ultimate security vulnerability data source
(e.g.: CVE-2009-1234 or 2010-1234 or 20101234)
Log In   Register
Vulnerability Feeds & WidgetsNew  

CWE - 395 : Use of NullPointerException Catch to Detect NULL Pointer Dereference

CWE Definition
Number of vulnerabilities: 0
Description Catching NullPointerException should not be used as an alternative to programmatic checks to prevent dereferencing a null pointer.
Background Details
Other Notes Programmers typically catch NullPointerException under three circumstances: 1. The program contains a null pointer dereference. Catching the resulting exception was easier than fixing the underlying problem. 2. The program explicitly throws a NullPointerException to signal an error condition. 3. The code is part of a test harness that supplies unexpected input to the classes under test. Of these three circumstances, only the last is acceptable.

Warning! CWE definitions are provided as a quick reference. They are not complete and may not be up to date!
You must visit for a complete list of CWE entries and for more details.
CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site. OVAL is a registered trademark of The MITRE Corporation and the authoritative source of OVAL content is MITRE's OVAL web site.
Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.