[jira] [Commented] (SOLR-7508) SolrParams.toMultiMap() does not handle arrays

["Noble Paul (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-7508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14534454#comment-14534454 ] 

Noble Paul commented on SOLR-7508:
----------------------------------

A patch would be helpful

> SolrParams.toMultiMap() does not handle arrays
> ----------------------------------------------
>
>                 Key: SOLR-7508
>                 URL: https://issues.apache.org/jira/browse/SOLR-7508
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrJ
>    Affects Versions: 5.0, 5.1
>            Reporter: Thomas Scheffler
>              Labels: easyfix, easytest
>
> Following JUnit test to show what I mean:
> {code}
> ModifiableSolrParams params = new ModifiableSolrParams();
> String[] paramValues = new String[] { "title:junit", "author:john" };
> String paramName = "fq";
> params.add(paramName, paramValues);
> NamedList<Object> namedList = params.toNamedList();
> assertEquals("parameter values are not equal", paramValues, namedList.get(paramName));
> Map<String, String[]> multiMap = SolrParams.toMultiMap(namedList);
> assertEquals("Expected " + paramValues.length + " values", paramValues.length, multiMap.get(paramName).length);
> {code}
> The first {{assertEquals()}} will run fine, while the last one triggers the error. Suddenly the length of the array is "1" and it's value of {{fq}} is like {{[Ljava.lang.String;@6f09c9c0}}. Looking into the code I see that the toMultiMap() method does not even look for arrays.



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