/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/ is in libtggraphlayout-java-doc 122-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/DragAddUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/DragMultiselectUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/DragNodeUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/GLEditUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/GLNavigateUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/HVRotateDragUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/HVScroll.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/HyperScroll.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/LocalityScroll.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/RotateScroll.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/TGAbstractClickUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/TGAbstractDragUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/TGAbstractMouseMotionUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/TGAbstractMousePausedUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/TGSelfDeactivatingUI.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/TGUIManager.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/TGUserInterface.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/ZoomScroll.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/package-frame.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/package-summary.html
/usr/share/doc/libtggraphlayout-java/api/com/touchgraph/graphlayout/interaction/package-tree.html