#vulnerable code 
                                static String createLocalSocketAddress() throws IOException {
        String name;
        String os = System.getProperty("os.name").toLowerCase();
        if (os.indexOf("windows") < 0) {
            File socket = File.createTempFile("mina", "apr");
            socket.delete();
            name = socket.getAbsolutePath();
        } else {
            File socket = File.createTempFile("mina", "apr");
            socket.delete();
            name = "\\\\.\\pipe\\" + socket.getName();
        }
        return name;
    } 
                            #location 3 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                static String createLocalSocketAddress() throws IOException {
        String name;
        if (OsUtils.isUNIX()) {
            File socket = File.createTempFile("mina", "apr");
            socket.delete();
            name = socket.getAbsolutePath();
        } else {
            File socket = File.createTempFile("mina", "apr");
            socket.delete();
            name = "\\\\.\\pipe\\" + socket.getName();
        }
        return name;
    }