Dear Paul,
                  we are trying to integrate solr 1.3 and nutch 0.9 and facing few problems .Here, below i am mentioning the error  stack     trace, and jdk versions.please, help us out from this problem.
                                          Finally , let us know if you have any useful documents on Solr-Nutch.

Environment we are working:

jdk:1.6
nutch:0.9
solr:1.3
Article refered for Integration:    http://wiki.apache.org/nutch/RunningNutchAndSolr

                                              http://blog.foofactory.fi/2007/02/online-indexing-integrating-nutch-with.html
OS:windows xp


Error Stack Trace we got when updating the crawler fetched Content:

009-05-13 20:22:27,175 WARN  indexer.SolrClientAdapter - Could not index document, reason:Bad Request

Bad Request

request: http://localhost:8080/solr/update?wt=javabin&version=2.2
org.apache.solr.common.
SolrException: Bad Request

Bad Request

request: http://localhost:8080/solr/update?wt=javabin&version=2.2
    at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:343)
    at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:183)
    at org.apache.solr.client.solrj.request.UpdateRequest.process(UpdateRequest.java:217)
    at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:63)
    at org.apache.nutch.indexer.SolrClientAdapter.index(SolrClientAdapter.java:75)
    at org.apache.nutch.indexer.SolrIndexer$OutputFormat$1.write(SolrIndexer.java:118)
    at org.apache.hadoop.mapred.ReduceTask$3.collect(ReduceTask.java:298)
    at org.apache.nutch.indexer.Indexer.reduce(Indexer.java:238)
    at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:313)
    at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:155)
2009-05-13 20:22:27,190 INFO  indexer.Indexer - Executing commit
2009-05-13 20:22:28,221 INFO  indexer.Indexer - SolrIndexer: done

Regards,
Mallik.J.