Properties props = new Properties();
props.load(fis);
fis.close();
props.setProperty("karaf.name", name);
FileOutputStream fos = new FileOutputStream(syspropsFile);
props.store(fos, "");
fos.close();
} catch (Exception e) {
throw new RuntimeException(e.getMessage(), e);
}
System.out.println("Instance name changed to " + name + ". Restart needed for this to take effect.");