[SOLR-1886] In SolrJ, XMLResponseParser throws an exception when attempting to process a response with spellcheck.extendedResults=true containing word suggestions

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 1.4
• Component/s: spellchecker
• Assignee: Unassigned
• Reporter: Nicholas Brozack
• Created: 18/Apr/10 09:35
• Updated: 01/Dec/13 17:08
• Resolved: 01/Dec/13 17:08

Description

This occurs when there are word suggestions.
The error occurs in the readArray method, the message being: "error reading value:LST"
The reason for this error is likely that the format of the response with the extendedResults option has unnamed lists.

Here is an example response where this occurs:
<response>

(response header is here)

<result name="response" numFound="0" start="0"/>
<lst name="spellcheck">
<lst name="suggestions">
<lst name="emaild">
<int name="numFound">2</int>
<int name="startOffset">0</int>
<int name="endOffset">6</int>
<int name="origFreq">0</int>
<arr name="suggestion">
<lst>
<str name="word">email</str>
<int name="freq">2</int>
</lst>
<lst>
<str name="word">webmail</str>
<int name="freq">1</int>
</lst>
</arr>
</lst>
<bool name="correctlySpelled">false</bool>
<str name="collation">email</str>
</lst>
</lst>
</response>

Surrounding the suggestions are unnamed lists.
Considering the method in XMLResponseParser is named readNamedList, I'm guessing that all lists must be named to avoid this error.