Return-Path: 
 <commons-user-return-16320-apmail-jakarta-commons-user-archive=jakarta.apache.org@jakarta.apache.org>
Delivered-To: apmail-jakarta-commons-user-archive@www.apache.org
Received: (qmail 69966 invoked from network); 19 May 2006 15:12:38 -0000
Received: from hermes.apache.org (HELO mail.apache.org) (209.237.227.199)
  by minotaur.apache.org with SMTP; 19 May 2006 15:12:38 -0000
Received: (qmail 38759 invoked by uid 500); 19 May 2006 15:12:29 -0000
Delivered-To: apmail-jakarta-commons-user-archive@jakarta.apache.org
Received: (qmail 38679 invoked by uid 500); 19 May 2006 15:12:29 -0000
Mailing-List: contact commons-user-help@jakarta.apache.org; run by ezmlm
Precedence: bulk
List-Unsubscribe: <mailto:commons-user-unsubscribe@jakarta.apache.org>
List-Help: <mailto:commons-user-help@jakarta.apache.org>
List-Post: <mailto:commons-user@jakarta.apache.org>
List-Id: "Jakarta Commons Users List" <commons-user.jakarta.apache.org>
Reply-To: "Jakarta Commons Users List" <commons-user@jakarta.apache.org>
Delivered-To: mailing list commons-user@jakarta.apache.org
Received: (qmail 38632 invoked by uid 99); 19 May 2006 15:12:29 -0000
Received: from asf.osuosl.org (HELO asf.osuosl.org) (140.211.166.49)
    by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 19 May 2006 08:12:29 -0700
X-ASF-Spam-Status: No, hits=0.0 required=10.0
	tests=
X-Spam-Check-By: apache.org
Received-SPF: pass (asf.osuosl.org: local policy)
Received: from [199.103.161.2] (HELO craexchange.cra.com) (199.103.161.2)
    by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 19 May 2006 08:12:28 -0700
Received: by CRA-EXCHANGE with Internet Mail Service (5.5.2653.19)
	id <LHPJQW8H>; Fri, 19 May 2006 11:12:10 -0400
Message-ID: <6E78A4E838BABF4EA555A859488EFF991969@CRA-EXCHANGE>
From: Joseph Campolongo <JCampolongo@cra.com>
To: commons-user@jakarta.apache.org
Subject: [JXPath] StackOverflow error
Date: Fri, 19 May 2006 11:12:02 -0400
X-MS-TNEF-Correlator: <6E78A4E838BABF4EA555A859488EFF991969@CRA-EXCHANGE>
MIME-Version: 1.0
X-Mailer: Internet Mail Service (5.5.2653.19)
Content-Type: multipart/mixed;
	boundary="----_=_NextPart_000_01C67B56.95365E50"
X-Virus-Checked: Checked by ClamAV on apache.org
X-Spam-Rating: minotaur.apache.org 1.6.2 0/1000/N

------_=_NextPart_000_01C67B56.95365E50
Content-Type: text/plain;
	charset="iso-8859-1"

I'm running into a StackOverflow error on a call to
'JXPathContext.createPath()' whenever I have a path that looks like
'a/b[1]/c'.  I took a quick look at the code and it appears JXPath, when
trying to create its parent pointer, simply recreates an equivalent
pointer(???).

I'm not sure if my AbstractFactory is incorrect, if JXPath simply doesn't
handle the above case(s), or if this is actually a bug in JXPath.

Here is code to reproduce the problem.


    Map map = new HashMap();
    map.put("a", null);
    
    JXPathContext pathContext = JXPathContext.newContext(map);
    pathContext.setFactory(new AbstractFactory() {
      public boolean createObject(
          JXPathContext context, Pointer pointer, Object parent, String
name, int index) {

        Map parentMap = (Map)parent;
        System.out.println(parent + ":" + name + ":" + index);
        if (index > -1) {
          List list = (List)parentMap.get(name);
          if (list == null) {
            list = new ArrayList();
          }
          int size = list.size();
          for (int i = size; i <= index; i++) {
            list.add(i, null);
          }
          parentMap.put(name, list);
        } else {
          parentMap.put(name, new HashMap());
        }
        return true;
      }
      
    });
    pathContext.createPath("a/b[1]/c");
    
Joseph Campolongo


------_=_NextPart_000_01C67B56.95365E50
Content-Type: text/plain; charset=us-ascii

---------------------------------------------------------------------
To unsubscribe, e-mail: commons-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: commons-user-help@jakarta.apache.org
------_=_NextPart_000_01C67B56.95365E50--