Oliver Kuldmäe created SOLR-12128:
-------------------------------------

             Summary: Setting the same field to null multiple times in a row 
throws NullPointerException
                 Key: SOLR-12128
                 URL: https://issues.apache.org/jira/browse/SOLR-12128
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
          Components: update
    Affects Versions: 6.6.2
            Reporter: Oliver Kuldmäe


I have a query that tries to set the same field to null multiple times in a 
row. This results in a NullPointerException. Tested on 6.6.2.

Stack trace:
{code:java}
java.lang.NullPointerException
at 
org.apache.solr.handler.component.RealTimeGetComponent.toSolrInputDocument(RealTimeGetComponent.java:667)
at 
org.apache.solr.handler.component.RealTimeGetComponent.getInputDocumentFromTlog(RealTimeGetComponent.java:539)
at 
org.apache.solr.handler.component.RealTimeGetComponent.getInputDocument(RealTimeGetComponent.java:593)
at 
org.apache.solr.update.processor.AtomicUpdateDocumentMerger.doInPlaceUpdateMerge(AtomicUpdateDocumentMerger.java:253)
at 
org.apache.solr.update.processor.DistributedUpdateProcessor.getUpdatedDocument(DistributedUpdateProcessor.java:1352)
at 
org.apache.solr.update.processor.DistributedUpdateProcessor.versionAdd(DistributedUpdateProcessor.java:1078)
at 
org.apache.solr.update.processor.DistributedUpdateProcessor.processAdd(DistributedUpdateProcessor.java:748)
at 
org.apache.solr.update.processor.LogUpdateProcessorFactory$LogUpdateProcessor.processAdd(LogUpdateProcessorFactory.java:103)
at org.apache.solr.handler.loader.XMLLoader.processUpdate(XMLLoader.java:261)
at org.apache.solr.handler.loader.XMLLoader.load(XMLLoader.java:188)
at 
org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:97)
at 
org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:68)
at 
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:173)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:2477)
at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:723)
at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:529)
at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:361)
at 
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:305)
at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1691)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at 
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
at 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at 
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:534)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
at 
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at 
org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at 
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
at 
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at 
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
at 
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
at java.lang.Thread.run(Thread.java:748){code}
Query example: 
{code:java}
<update>
    <add>
        <doc>
            <field name="id">460341</field>
            <field name="some_dynamic_field_124231_i_dv" update="set" 
null="true"/>
        </doc>
    </add>
    <add>
        <doc>
            <field name="id">460341</field>
            <field name="some_dynamic_field_124231_i_dv" update="set" 
null="true"/>
        </doc>
    </add>
    <add>
        <doc>
            <field name="id">460341</field>
            <field name="some_dynamic_field_124231_i_dv" 
update="set">1521472499</field>
        </doc>
    </add>
</update>
{code}



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