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https://issues.apache.org/jira/browse/SOLR-8180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14969542#comment-14969542
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David Smiley commented on SOLR-8180:
------------------------------------
Yes; +1 to that. I'll keep this on my backlog until I have time to if someone
doesn't get it done first. Should be simple.
> Missing commons-logging dependency in solrj-lib for SolrJ
> ---------------------------------------------------------
>
> Key: SOLR-8180
> URL: https://issues.apache.org/jira/browse/SOLR-8180
> Project: Solr
> Issue Type: Bug
> Components: SolrJ
> Affects Versions: Trunk
> Reporter: Kevin Risden
> Attachments: SOLR-8180.patch
>
>
> When using DBVisualizer, SquirrelSQL, or Java JDBC with the Solr JDBC driver,
> an additional dependency on commons-logging must be added otherwise the
> following exception occurs:
> {code}
> org.apache.solr.common.SolrException: Unable to create HttpClient instance.
> at
> org.apache.solr.client.solrj.impl.HttpClientUtil$HttpClientFactory.createHttpClient(HttpClientUtil.java:393)
> at
> org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:124)
> at
> org.apache.solr.client.solrj.impl.CloudSolrClient.<init>(CloudSolrClient.java:196)
> at
> org.apache.solr.client.solrj.io.SolrClientCache.getCloudSolrClient(SolrClientCache.java:47)
> at
> org.apache.solr.client.solrj.io.sql.ConnectionImpl.<init>(ConnectionImpl.java:51)
> at
> org.apache.solr.client.solrj.io.sql.DriverImpl.connect(DriverImpl.java:108)
> at
> org.apache.solr.client.solrj.io.sql.DriverImpl.connect(DriverImpl.java:76)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:497)
> at com.onseven.dbvis.h.B.D.ￄﾁ(Z:1548)
> at com.onseven.dbvis.h.B.F$A.call(Z:1369)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
> at
> org.apache.solr.client.solrj.impl.HttpClientUtil$HttpClientFactory.createHttpClient(HttpClientUtil.java:391)
> ... 16 more
> Caused by: java.lang.NoClassDefFoundError:
> org/apache/commons/logging/LogFactory
> at
> org.apache.http.impl.client.CloseableHttpClient.<init>(CloseableHttpClient.java:58)
> at
> org.apache.http.impl.client.AbstractHttpClient.<init>(AbstractHttpClient.java:287)
> at
> org.apache.http.impl.client.DefaultHttpClient.<init>(DefaultHttpClient.java:128)
> at
> org.apache.http.impl.client.SystemDefaultHttpClient.<init>(SystemDefaultHttpClient.java:116)
> ... 21 more
> {code}
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