Using the latest from trunk as of 2010-04-29, and the SOLR-236<https://issues.apache.org/jira/browse/SOLR-236>-trunk.patch from 2010-03-29 05:08, I get a nullpointerexception whenever I use collapse.field and a fq.
Works: /solr/select/?q=sales&fq=country%3A1 Works: /solr/select/?q=sales&collapse.field=company Doesn't work: /solr/select/?q=sales&collapse.field=company&fq=country%3A1 The top of the trace is: java.lang.NullPointerException at org.apache.solr.search.fieldcollapse.NonAdjacentDocumentCollapser$FloatValueFieldComparator.compare(NonAdjacentDocumentCollapser.java:450) at org.apache.solr.search.fieldcollapse.NonAdjacentDocumentCollapser$DocumentComparator.compare(NonAdjacentDocumentCollapser.java:262) at org.apache.solr.search.fieldcollapse.NonAdjacentDocumentCollapser$DocumentPriorityQueue.lessThan(NonAdjacentDocumentCollapser.java:196) at org.apache.lucene.util.PriorityQueue.insertWithOverflow(PriorityQueue.java:148) at org.apache.solr.search.fieldcollapse.NonAdjacentDocumentCollapser.doCollapsing(NonAdjacentDocumentCollapser.java:113) at org.apache.solr.search.fieldcollapse.AbstractDocumentCollapser.executeCollapse(AbstractDocumentCollapser.java:259) at org.apache.solr.search.fieldcollapse.AbstractDocumentCollapser.collapse(AbstractDocumentCollapser.java:179) at org.apache.solr.handler.component.CollapseComponent.doProcess(CollapseComponent.java:173) at org.apache.solr.handler.component.CollapseComponent.process(CollapseComponent.java:127) at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:195) What's oddest is that the search works on the first load, and on a F5 in the browser, but a hard-refresh (control-F5) forces it to crash. The only problems are with FieldCollapse, everything else works great. I'd love to help more with debugging, but I'm not Java-savvy enough (yet). Appreciative of any help available, @ecaron (This is also posted on https://issues.apache.org/jira/browse/SOLR-236#comment_12862327_header_ecaron )
