/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/ is in libjcommander-java-doc 1.48-1.
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/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/NoValidator.html
/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/NoValueValidator.html
/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/PositiveInteger.html
/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/class-use/
/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/class-use/NoValidator.html
/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/class-use/NoValueValidator.html
/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/class-use/PositiveInteger.html
/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/package-frame.html
/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/package-summary.html
/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/package-tree.html
/usr/share/doc/libjcommander-java/api/com/beust/jcommander/validators/package-use.html