[SOLR-6626] NPE in FieldMutatingUpdateProcessor when indexing a doc with null field value

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.9
• Fix Version/s: 5.0, 6.0
• Assignee: Noble Paul
• Reporter: Paul Baclace
• Created: 15/Oct/14 03:25
• Updated: 09/May/16 18:48
• Resolved: 12/Dec/14 12:36

Description

NullPointerException when indexing a JSON doc with null field.
1. run the example-schemaless
2. visit http://localhost:8983/solr/#/collection1/documents
3. put a doc

{ "id":"fooop" }

and it succeeds
4. put a doc

{ "id":"fooop", "exampleField":null }

and NPE is result.

This could be considered a regression of SOLR-2714 which was resolved in v3.6, but the error occurs when the null-containing doc is added instead of during parsing.

Stacktrace:

ERROR org.apache.solr.servlet.SolrDispatchFilter – null:java.lang.NullPointerException
at org.apache.solr.update.processor.FieldValueMutatingUpdateProcessor.mutate(FieldValueMutatingUpdateProcessor.java:65)
at org.apache.solr.update.processor.FieldMutatingUpdateProcessor.processAdd(FieldMutatingUpdateProcessor.java:97)
at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:51)
at org.apache.solr.update.processor.DistributedUpdateProcessor.doLocalAdd(DistributedUpdateProcessor.java:867)
at org.apache.solr.update.processor.DistributedUpdateProcessor.versionAdd(DistributedUpdateProcessor.java:1021)
at org.apache.solr.update.processor.DistributedUpdateProcessor.processAdd(DistributedUpdateProcessor.java:690)
at org.apache.solr.update.processor.LogUpdateProcessor.processAdd(LogUpdateProcessorFactory.java:100)
at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:51)
at org.apache.solr.update.processor.AbstractDefaultValueUpdateProcessorFactory$DefaultValueUpdateProcessor.processAdd(AbstractDefaultValueUpdateProcessorFactory.java:94)
at org.apache.solr.handler.loader.JsonLoader$SingleThreadedJsonLoader.processUpdate(JsonLoader.java:141)
at org.apache.solr.handler.loader.JsonLoader$SingleThreadedJsonLoader.load(JsonLoader.java:106)
at org.apache.solr.handler.loader.JsonLoader.load(JsonLoader.java:68)
at org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:99)
at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:74)
at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1967)