Method sun.awt.X11FontManager#registerFontDir contains huge try-finally block with big indentation:

        FileReader fr = null;
        try {
            if (fontsDotDir.canRead()) {
                fr = new FileReader(fontsDotDir);
                //...
                }
                fr.close();
            }
        } catch (IOException ioe1) {
        } finally {
            if (fr != null) {
                try {
                    fr.close();
                } catch (IOException ioe2) {
                }
            }
        }

Can be simplified if we move 'if (fontsDotDir.canRead()) {' outside of try-finally. And use try-with-resrouces for FileReader