#vulnerable code 
                                public void explore() {
        try {
            Book b = onlyOneSelected();
            File m = audible.getMP3FileDest(b);
            if (m.exists()) {
                String mac = "open -R ";
                String win = "Explorer /select, ";

                String cmd = null;
                if (Platform.isMac())
                    cmd = mac;
                if (Platform.isWindows())
                    cmd = win;
                // TODO: Support linux.
                if (cmd != null) {
                    cmd += "\"" + m.getAbsolutePath() + "\"";
                    System.err.println(cmd);
                    Runtime.getRuntime().exec(cmd);
                }

                // Desktop.getDesktop().open(m.getParentFile());
            }
        } catch (Throwable th) {
            showError(th, "showing file in system");
        }
    } 
                            #location 18 
                            #vulnerability type RESOURCE_LEAK
#fixed code
                                public void explore() {
        try {
            Book b = onlyOneSelected();
            File m = audible.getMP3FileDest(b);
            if (m.exists()) {
                GUI.explore(m);


                // Desktop.getDesktop().open(m.getParentFile());
            }
        } catch (Throwable th) {
            showError(th, "showing file in system");
        }
    }