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POHow to handle closing the java log file upon encountering an unhandled exception
 

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  1. POHow to handle closing the java log file upon encountering an unhandled exception
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    <p>I am currently working on a Java project where I am using the standard Java logger (i.e. java.util.logging.Logger). I'm finding that when I hit unexpected exceptions that are not handled in my code, my program closes but the logger doesn't release the lock on the text file.</p> <p>Is there some way to adjust my code so that <strong>any</strong> unexpected exception in my code gets logged to the output file, closes the output file and quits?</p> <p><strong>Some code in case it's relevant</strong></p> <p>I have a CustomLogging class:</p> <pre><code>import java.io.IOException; import java.util.logging.FileHandler; import java.util.logging.Level; import java.util.logging.Logger; import java.util.logging.SimpleFormatter; public class CustomLogging { static private FileHandler txtFileHandle; static private SimpleFormatter formatterTxt; static public void initalise() throws IOException { //Global logger configuration Logger logger = Logger.getLogger(Logger.GLOBAL_LOGGER_NAME); logger.setLevel(Level.INFO); txtFileHandle = new FileHandler("Logging.txt"); formatterTxt = new SimpleFormatter(); txtFileHandle.setFormatter(formatterTxt); logger.addHandler(txtFileHandle); } static public void shutdown() throws IOException { txtFileHandle.close(); } } </code></pre> <p>The initialise method for the CustomLogger class is called at program start-up in the constructor of my first Java Swing GUI:</p> <pre><code>public StartMenu() { try { CustomLogging.initalise(); } catch (Exception e) { //Placeholder, will fix this up } //Other code.... } </code></pre> <p>All other classes get access via:</p> <pre><code>private final static Logger logger = Logger.getLogger(MyClassNameHere.class.getName()); </code></pre> <p>Thank you.</p>
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    1. USH0rizon
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    1. COwhere are you using the CustomLogging;
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    2. COI've updated my question to show that the initialise method for CustomLogging is called at the very start of my program inside the constructor for the first Java Swing GUI.
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      1. USH0rizon
 

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