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https://issues.apache.org/jira/browse/SOLR-13022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16937423#comment-16937423
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ASF subversion and git services commented on SOLR-13022:
--------------------------------------------------------
Commit f43909111f02c76e86c4775fe5490ef1bdc40c4e in lucene-solr's branch
refs/heads/branch_8x from Munendra S N
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=f439091 ]
SOLR-13022: validate sort parameters in JSON facet after parsing
* This fixes NPE in case of non-existent aggregate functions in sort/prelim_sort
* validate sort direction
> JSON Faceting NPE & 500 Error when attempting to sort on non-existent agg
> (ie: typo)
> ------------------------------------------------------------------------------------
>
> Key: SOLR-13022
> URL: https://issues.apache.org/jira/browse/SOLR-13022
> Project: Solr
> Issue Type: Bug
> Reporter: Hoss Man
> Assignee: Munendra S N
> Priority: Major
> Attachments: SOLR-13022.patch, SOLR-13022.patch
>
>
> JSON Faceting does not provide good error handling in the event of a typo /
> non-existent agg stat name when sorting. the parsing logic happily accepts
> the bogus sortVariable w/o validation, and the subsequent execution logic
> trows an NPE when it can't be found.
> Request...
> {noformat}
> curl http://localhost:8983/solr/techproducts/query -d 'rows=0&q=*:*&
> json.facet={
> categories:{
> type : terms,
> field : cat,
> sort : "xxxxx desc",
> }
> }'
> {noformat}
> Response...
> {noformat}
> {
> "responseHeader":{
> "status":500,
> "QTime":1,
> "params":{
> "q":"*:*",
> "json.facet":"{\n categories:{\n type : terms,\n field : cat,\n
> sort : \"xxxxx desc\",\n }\n}",
> "rows":"0"}},
> "response":{"numFound":32,"start":0,"docs":[]
> },
> "error":{
> "trace":"java.lang.NullPointerException\n\tat
> org.apache.solr.search.facet.FacetFieldProcessor.lambda$findTopSlots$1(FacetFieldProcessor.java:287)
> ...
> {noformat}
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