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From "Kristian Marinkovic (JIRA)" <...@tapestry.apache.org>
Subject [jira] Created: (TAPESTRY-2253) Required Validator can produce NullPointerExceptions
Date Wed, 12 Mar 2008 15:50:46 GMT
Required Validator can produce NullPointerExceptions
----------------------------------------------------

                 Key: TAPESTRY-2253
                 URL: https://issues.apache.org/jira/browse/TAPESTRY-2253
             Project: Tapestry
          Issue Type: Improvement
          Components: tapestry-core
    Affects Versions: 5.0.12
            Reporter: Kristian Marinkovic


the validate method of the Required validator contains following code line:

if (value == null || value.toString().equals(""))...

if the toString method returns null an exception will occur (happened to me accidentally :))


this code line should at least be changed to:

if (value == null || "".equals(value.toString())... to prevent NPE



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