/usr/share/doc/libtrident-java/api/org/pushingpixels/trident/interpolator/ is in libtrident-java-doc 1.3+dfsg-5.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/libtrident-java/api/org/pushingpixels/trident/interpolator/CorePropertyInterpolators.html
/usr/share/doc/libtrident-java/api/org/pushingpixels/trident/interpolator/KeyFrames.html
/usr/share/doc/libtrident-java/api/org/pushingpixels/trident/interpolator/KeyTimes.html
/usr/share/doc/libtrident-java/api/org/pushingpixels/trident/interpolator/KeyValues.html
/usr/share/doc/libtrident-java/api/org/pushingpixels/trident/interpolator/PropertyInterpolator.html
/usr/share/doc/libtrident-java/api/org/pushingpixels/trident/interpolator/PropertyInterpolatorSource.html
/usr/share/doc/libtrident-java/api/org/pushingpixels/trident/interpolator/package-frame.html
/usr/share/doc/libtrident-java/api/org/pushingpixels/trident/interpolator/package-summary.html
/usr/share/doc/libtrident-java/api/org/pushingpixels/trident/interpolator/package-tree.html