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From "Will McGinnis (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-9497) HttpSolrClient.Builder Returns Unusable Connection
Date Sun, 11 Sep 2016 04:06:21 GMT
Will McGinnis created SOLR-9497:
-----------------------------------

             Summary: HttpSolrClient.Builder Returns Unusable Connection
                 Key: SOLR-9497
                 URL: https://issues.apache.org/jira/browse/SOLR-9497
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
          Components: clients - java
    Affects Versions: 6.2
         Environment: Java 1.8 Mac OSX
            Reporter: Will McGinnis
             Fix For: 6.1.1


SolrClient solr = new HttpSolrClient.Builder(urlString).build();
Exception in thread "main" java.lang.VerifyError: Bad return type
Exception Details:
  Location:
 org/apache/solr/client/solrj/impl/HttpClientUtil.createClient(Lorg/apache/solr/common/params/SolrParams;Lorg/apache/http/conn/ClientConnectionManager;)Lorg/apache/http/impl/client/CloseableHttpClient;
@58: areturn
  Reason:
    Type 'org/apache/http/impl/client/DefaultHttpClient' (current frame, stack[0]) is not
assignable to 'org/apache/http/impl/client/CloseableHttpClient' (from method signature)
  Current Frame:
    bci: @58
    flags: { }
    locals: { 'org/apache/solr/common/params/SolrParams', 'org/apache/http/conn/ClientConnectionManager',
'org/apache/solr/common/params/ModifiableSolrParams', 'org/apache/http/impl/client/DefaultHttpClient'
}
    stack: { 'org/apache/http/impl/client/DefaultHttpClient' }
  Bytecode:
    0x0000000: bb00 0359 2ab7 0004 4db2 0005 b900 0601
    0x0000010: 0099 001e b200 05bb 0007 59b7 0008 1209
    0x0000020: b600 0a2c b600 0bb6 000c b900 0d02 002b
    0x0000030: b800 104e 2d2c b800 0f2d b0            
  Stackmap Table:
    append_frame(@47,Object[#143])
	at org.apache.solr.client.solrj.impl.HttpSolrClient.<init>(HttpSolrClient.java:209)
	at org.apache.solr.client.solrj.impl.HttpSolrClient$Builder.build(HttpSolrClient.java:874)

I have tried upgrading to httpclient-4.5.2. This appears to create the same problem. For now,
I use this deprecated, connection code.
return new HttpSolrClient(urlString, new SystemDefaultHttpClient());
Eventually, this hangs the Solr server, because you run out of file handles.
I suspect calling solrClient.close() is doing nothing.
I tried not closing and using a static connection to Solr.
This results in basically, the same problem of, eventually hanging the Solr server.



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