/usr/share/doc/libwagon-java/api/org/apache/maven/wagon/events/ is in libwagon-java-doc 1.0.0-2ubuntu2.
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/usr/share/doc/libwagon-java/api/org/apache/maven/wagon/events/SessionEvent.html
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/usr/share/doc/libwagon-java/api/org/apache/maven/wagon/events/class-use/
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/usr/share/doc/libwagon-java/api/org/apache/maven/wagon/events/package-tree.html
/usr/share/doc/libwagon-java/api/org/apache/maven/wagon/events/package-use.html