David Arthur created SOLR-4614:
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Summary: ClusterState#getSlices returns null causing NPE in
ClientUtils#addSlices
Key: SOLR-4614
URL: https://issues.apache.org/jira/browse/SOLR-4614
Project: Solr
Issue Type: Bug
Components: clients - java, SolrCloud
Affects Versions: 4.1
Reporter: David Arthur
Priority: Minor
When my program sends an UpdateRequest to a collection that has been deleted, I
am getting a NPE
{code}
java.lang.NullPointerException
at
org.apache.solr.client.solrj.util.ClientUtils.addSlices(ClientUtils.java:273)
at
org.apache.solr.client.solrj.impl.CloudSolrServer.request(CloudSolrServer.java:214)
at
org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(AbstractUpdateRequest.java:117)
{code}
This appears to be caused by the fact that ClusterState#getSlices is returning
null instead of an empty collection.
ClusterState returning null:
https://github.com/apache/lucene-solr/blob/lucene_solr_4_1/solr/solrj/src/java/org/apache/solr/common/cloud/ClusterState.java#L123
ClientUtil#addSlices iterating over a null:
https://github.com/apache/lucene-solr/blob/lucene_solr_4_1/solr/solrj/src/java/org/apache/solr/client/solrj/util/ClientUtils.java#L273
I would attach a patch, but I'm not sure what the preferred style is within the
project (empty collection vs null checks).
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