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Subject: DO NOT REPLY [Bug 36151]  New:  -
    PropertySet::addPropertyNames causes NullPointerException
Message-Id: <20050811204327.65905EB@ajax.apache.org>
Date: Thu, 11 Aug 2005 22:43:27 +0200 (CEST)

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http://issues.apache.org/bugzilla/show_bug.cgi?id=36151

           Summary: PropertySet::addPropertyNames causes
                    NullPointerException
           Product: Ant
           Version: 1.6.5
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: wascallywabbit@earthling.net


The function addPropertyNames(Set names, Hashtable properties) does not use the
passed in hashtable to check for refitems that use the "name" field. This is a
problem for property helper's that have hooks attached. If the property is
matched by a hook but is not part of the project's property table (i.e missing
from "properties" but non-null for Project.getProperty()), a null value will be
returned at line 320 in PropertySet.java.

Changing line 346 to:
 if (prj != null && properties.get(r.name) != null) {

should fix the problem.

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