/usr/share/doc/libjenkins-json-java/api/net/sf/json/regexp/ is in libjenkins-json-java-doc 2.4-jenkins-3-3.
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/usr/share/doc/libjenkins-json-java/api/net/sf/json/regexp/JdkRegexpMatcher.html
/usr/share/doc/libjenkins-json-java/api/net/sf/json/regexp/Perl5RegexpMatcher.html
/usr/share/doc/libjenkins-json-java/api/net/sf/json/regexp/RegexpMatcher.html
/usr/share/doc/libjenkins-json-java/api/net/sf/json/regexp/RegexpUtils.html
/usr/share/doc/libjenkins-json-java/api/net/sf/json/regexp/class-use/
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/usr/share/doc/libjenkins-json-java/api/net/sf/json/regexp/class-use/RegexpMatcher.html
/usr/share/doc/libjenkins-json-java/api/net/sf/json/regexp/class-use/RegexpUtils.html
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/usr/share/doc/libjenkins-json-java/api/net/sf/json/regexp/package-tree.html
/usr/share/doc/libjenkins-json-java/api/net/sf/json/regexp/package-use.html