SecurityTools.java is inside test/lib/security now but that directory was meant to test on files inside JAVA_HOME/lib/security (say, cacerts, blacklists). It should be moved to another place where test utilities normally live. Maybe root/test/lib in the future, but now at least jdk/lib/testlibrary.

It's also better if it can be put into a package, so that we can write "import static package.to.SecurityTools.*".