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Using Java Util Logging

I am using Java util logging to log information - I am also using a custom formatter - the custom formatter works fine however the issue that I am facing is that the log file refreshes each time and I loose the old information. The following is the structure of my property file. How can I ensure that the information gets logged to the same file and a new file does not get generated each time.

# The following creates two handlers
# Set the default logging level for the root logger
.level = INFO
# Set the default logging level for new FileHandler instances
java.util.logging.FileHandler.level = INFO
# Set the default formatter for new ConsoleHandler instances
java.util.logging.FileHandler.formatter = java.util.logging.SimpleFormatter
# The custom logging properties file is loaded by specifying a system property on the command line:
# java -Djava.util.logging.config.file=mylogging.properties <class>


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8/22/2022 - Mon

Perhaops you want to create appenidng FileHandler like in this example:


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I would like to record the logs of my Java application. I have created this class:

public class Log {

    final Logger logger = Logger.getLogger("DigiScope.log");

    public static void main(String[] args) {

    public Log(String message) {
        try {
            // Create an appending file handler
            boolean append = true;
            FileHandler handler = new FileHandler("my.log", append);

            // Add to the desired logger
            Logger logger = Logger.getLogger("com.mycompany");

        } catch (IOException e) {


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I already did that

And it still writes new file every time?
You mean every time you re-start the program?
Do you mean that it writes new file with new name?
What will be the new name?
Or it overwrites into the same file?

Please,provide some details.
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It overwrites the same file - I dont want to loose the logs from a previous run of the program

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