/usr/lib/gcc/x86_64-linux-gnu/4.8/libgcj-tools.so is in gcj-4.8-jdk 4.8.4-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/libgcj-tools.so.14