/usr/share/doc/libasync-http-client-java/api/com/ning/http/client/providers/apache/class-use/ is in libasync-http-client-java-doc 1.6.5-1.
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/usr/share/doc/libasync-http-client-java/api/com/ning/http/client/providers/apache/class-use/ApacheAsyncHttpProvider.ApacheClientRunnable.html
/usr/share/doc/libasync-http-client-java/api/com/ning/http/client/providers/apache/class-use/ApacheAsyncHttpProvider.EntityWriterRequestEntity.html
/usr/share/doc/libasync-http-client-java/api/com/ning/http/client/providers/apache/class-use/ApacheAsyncHttpProvider.html
/usr/share/doc/libasync-http-client-java/api/com/ning/http/client/providers/apache/class-use/ApacheAsyncHttpProviderConfig.html
/usr/share/doc/libasync-http-client-java/api/com/ning/http/client/providers/apache/class-use/ApacheResponse.html
/usr/share/doc/libasync-http-client-java/api/com/ning/http/client/providers/apache/class-use/ApacheResponseBodyPart.html
/usr/share/doc/libasync-http-client-java/api/com/ning/http/client/providers/apache/class-use/ApacheResponseFuture.html
/usr/share/doc/libasync-http-client-java/api/com/ning/http/client/providers/apache/class-use/ApacheResponseHeaders.html
/usr/share/doc/libasync-http-client-java/api/com/ning/http/client/providers/apache/class-use/ApacheResponseStatus.html