/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/ is in libjcsp-java-doc 1.1-rc4-1.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/Clock.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/DiningPhilosophersCollege.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/Fork.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/ForkChannel.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/ForkReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/PhilCall.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/PhilChannel.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/PhilReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/Philosopher.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/Security.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/callChannel/TextDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/Clock.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/ClockReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/CollegeDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/DiningDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/DiningPhilosophersCollege.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/Fork.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/ForkDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/ForkReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/ISReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/PhilDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/PhilMain.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/PhilReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/Philosopher.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/Security.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/SecurityDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/SecurityReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/channel/TextDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/Clock.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/ClockReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/CollegeDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/DeadMain.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/DiningDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/DiningPhilosophersCollege.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/Fork.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/ForkDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/ForkReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/ISReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/PhilDisplay.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/PhilReport.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/Philosopher.java
/usr/share/doc/libjcsp-java/jcsp-demos/philosophers/deadlock/TextDisplay.java