LogManager readConfiguration() method in Java with Examples

Last Updated : 26 Sep, 2021

The readConfiguration() method of java.util.logging.LogManager is used to read and initialize the default configuration. This method throws IOException and SecurityException if the exception condition occurs, as given below

Syntax:

public void readConfiguration()
  throws IOException, SecurityException

Parameters: This method does not accepts any parameter.
Return Value: This method does not return anything. It just reads and initializes the logging configuration.
Exceptions: This method throws following exceptions:

IOException: if any IO error occurs while reading the configuration.
SecurityException: if a security manager exists while the caller does not have logging permissions.

Below programs illustrate readConfiguration() method:

Java

// Java program to illustrate
// LogManager readConfiguration() method

import java.util.logging.*;
import java.util.*;

public class GFG {

    public static void main(String[] args)
    {

        try {
            // Create LogManager object
            LogManager logManager
                = LogManager.getLogManager();

            System.out.println("LogManager: "
                               + logManager);

            System.out.println(
                "Reading the configuration "
                + "using readConfiguration() method");
            logManager.readConfiguration();
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:
LogManager: java.util.logging.LogManager@1540e19d
Reading the configuration using readConfiguration() method
java.security.AccessControlException: access denied ("java.util.logging.LoggingPermission" "control")

Reference: https://docs.oracle.com/javase/9/docs/api/java/util/logging/LogManager.html#readConfiguration--