Christine Poerschke created SOLR-9093:
-----------------------------------------
Summary: fix TopGroupsShardResponseProcessor.java:105
NullPointerException
Key: SOLR-9093
URL: https://issues.apache.org/jira/browse/SOLR-9093
Project: Solr
Issue Type: Bug
Reporter: Christine Poerschke
Assignee: Christine Poerschke
Priority: Minor
e.g.
http://jenkins.thetaphi.de/job/Lucene-Solr-master-Linux/16693/testReport/junit/org.apache.solr/TestDistributedSearch/test/
{code}
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error
from server at http://127.0.0.1:44706//collection1:
java.lang.NullPointerException
at
org.apache.solr.search.grouping.distributed.responseprocessor.TopGroupsShardResponseProcessor.process(TopGroupsShardResponseProcessor.java:105)
at
org.apache.solr.handler.component.QueryComponent.handleGroupedResponses(QueryComponent.java:753)
at
org.apache.solr.handler.component.QueryComponent.handleResponses(QueryComponent.java:736)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:420)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:155)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:2016)
...
{code}
A minimalistic fix would be
{code}
- if (t instanceof SolrServerException) {
+ if (t instanceof SolrServerException && t.getCause() != null) {
{code}
but perhaps equally valid would be to tweak the logic, similar to the
[SearchHandler.java#L440|https://github.com/apache/lucene-solr/blob/master/solr/core/src/java/org/apache/solr/handler/component/SearchHandler.java#L440]
logic, the difference being cause vs. root-cause for SolrServerException
exceptions and throwable vs. throwable.cause for other exceptions.
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