/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/ is in libservlet3.0-java-doc 7.0.56-3+deb8u11.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/HandlesTypes.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/HttpConstraint.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/HttpMethodConstraint.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/MultipartConfig.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/ServletSecurity.EmptyRoleSemantic.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/ServletSecurity.TransportGuarantee.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/ServletSecurity.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/WebFilter.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/WebInitParam.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/WebListener.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/WebServlet.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/package-frame.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/package-summary.html
/usr/share/doc/libservlet3.0-java/api/javax/servlet/annotation/package-tree.html