[jira] [Created] (WW-4126) Incorrect behavior for ELSupport.containsNulls()

["Adrian Nistor (JIRA)" <ji...@apache.org>]

Adrian Nistor created WW-4126:
---------------------------------

             Summary: Incorrect behavior for ELSupport.containsNulls()
                 Key: WW-4126
                 URL: https://issues.apache.org/jira/browse/WW-4126
             Project: Struts 2
          Issue Type: Bug
          Components: Plugin - Embedded JSP
    Affects Versions: 2.3.14.3
         Environment: any
            Reporter: Adrian Nistor
         Attachments: patch2.diff, patch.diff

The incorrect behavior appears in version 2.3.14.3 and in revision
1495522.  I attached a one-line patch (patch.diff) that fixes it.

Method "ELSupport.containsNulls" checks if the "Object[] obj" array
contains nulls like this:

{code:java|borderStyle=solid}
for (int i = 0; i < obj.length; i++) {
    if (obj[0] == null) {
        return true;
    }
}
return false;
{code} 

Instead of "obj[0]", the code should be "obj[i]", as in patch.diff.

If indeed the code is intended to check only "obj[0]", then there is
no need for a loop and the entire method body should be only "return
obj[0] == null;" (I attached patch2.diff, though it's unlikely that
this is the correct behavior).

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