/usr/share/doc-base/felix-main is in libfelix-main-java-doc 5.0.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | Document: felix-main
Title: Apache Felix Main
Author: The Apache Software Foundation Main Classes
Section: Programming/Java
Format: HTML
Index: /usr/share/doc/libfelix-main-java/api/index.html
Files: /usr/share/doc/libfelix-main-java/api/*.html
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