/usr/share/doc/libcommons-pool-java/api/org/apache/commons/pool/impl/ is in libcommons-pool-java-doc 1.6-3.
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/usr/share/doc/libcommons-pool-java/api/org/apache/commons/pool/impl/GenericKeyedObjectPool.Config.html
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/usr/share/doc/libcommons-pool-java/api/org/apache/commons/pool/impl/GenericKeyedObjectPoolFactory.html
/usr/share/doc/libcommons-pool-java/api/org/apache/commons/pool/impl/GenericObjectPool.Config.html
/usr/share/doc/libcommons-pool-java/api/org/apache/commons/pool/impl/GenericObjectPool.html
/usr/share/doc/libcommons-pool-java/api/org/apache/commons/pool/impl/GenericObjectPoolFactory.html
/usr/share/doc/libcommons-pool-java/api/org/apache/commons/pool/impl/SoftReferenceObjectPool.html
/usr/share/doc/libcommons-pool-java/api/org/apache/commons/pool/impl/StackKeyedObjectPool.html
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/usr/share/doc/libcommons-pool-java/api/org/apache/commons/pool/impl/package-frame.html
/usr/share/doc/libcommons-pool-java/api/org/apache/commons/pool/impl/package-summary.html