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From "Zhongxian Gu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JXPATH-143) JXPathContext.iterate does not work with null value in LazyDynaBean
Date Tue, 02 Nov 2010 22:58:26 GMT

    [ https://issues.apache.org/jira/browse/JXPATH-143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927659#action_12927659
] 

Zhongxian Gu commented on JXPATH-143:
-------------------------------------

Hi, 

I think this bug is duplicate to JXPATH-128. 

I am building a tool to analyse bugs. The tool is aimed at finding similar bugs so that we
can make use of this information. One possibility would be that similar bugs are actually
duplicate bugs. With this information, programmers need not to explore these bug reports one
by one, instead can view them as one bug, thus saving the efforts.

I input some bugs in this project. According to my tool's analysis, JXPATH-143 is very likely
to related to JXPATH 128. I tried to resolve 143 based on fix patch of 128. Finally it turns
out that JXPATH-143 is duplicate to 128. The patch to 128 is the essential code to resolve
143. With jxpath-1.3 patched the 128's patch, 143 will run smoothly without any runtime exception.


I am new to JXPATH, and not 100% sure of it.

Best

Zhongxian





> JXPathContext.iterate does not work with null value in LazyDynaBean
> -------------------------------------------------------------------
>
>                 Key: JXPATH-143
>                 URL: https://issues.apache.org/jira/browse/JXPATH-143
>             Project: Commons JXPath
>          Issue Type: Bug
>    Affects Versions: 1.3
>            Reporter: Mikael Nordenberg
>
> The following code fails with a NoSuchElementException:
> LazyDynaBean bean = new LazyDynaBean();
> bean.set("test", null);		
> JXPathContext context = JXPathContext.newContext(bean);
> context.iterate("test").next();
> Replacing the value in the bean for anything but null works as expected.

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