Java – use the runtimemxbean instance and system Getproperties reads the difference between system properties

What is the difference between reading system properties in this different way

RuntimeMXBean RuntimemxBean = ManagementFactory.getRuntimeMXBean();
Object value =  RuntimemxBean.getSystemProperties();
System.out.println(value);

and

Properties systemProperties = System.getProperties();
systemProperties.list(System.out);

Solution

At least in the sun JVM, the result should be the same as runtimemxbean Getsystemproperties() internally calls system Getproperties() is the same

public Map<String,String> getSystemProperties() {
    Properties localProperties = System.getProperties();
    HashMap localHashMap = new HashMap();

    Set localSet = localProperties.stringPropertyNames();
    for (String str1 : localSet) {
      String str2 = localProperties.getProperty(str1);
      localHashMap.put(str1,str2);
    }

    return localHashMap;
}

The difference is that you can use the runtimemxbean in the remote JVM (see 2) to get its system properties