commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Christoph Kutzinski (JIRA)" <>
Subject [jira] Created: (LANG-353) Javadoc Example for EqualsBuilder is questionable
Date Tue, 21 Aug 2007 15:46:32 GMT
Javadoc Example for EqualsBuilder is questionable

                 Key: LANG-353
             Project: Commons Lang
          Issue Type: Bug
            Reporter: Christoph Kutzinski
            Priority: Minor

The Javadoc example for the class EqualsBuilder ist questionable:

 public boolean equals(Object obj) {
   if (obj instanceof MyClass == false) {
     return false;

The implementation with instanceof lacks guarantees like equals-symmetry  (see e.g.
 for a discussion of the issue)
The example should be changed to use getClass(). Attention: the solution in the link above
is incomplete as it doesn't check for null

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message