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stackoverflow.com › questions › 2467070 › onexit-event-for-a-swing-application

Runtime.getRuntime().addShutdownHook(new Thread()
{
    @Override
    public void run()
    {
        updateZonas();
        db.close();
    }
});

This works for any Java application(Swing/AWT/Console)

Answer from Santhosh Kumar Tekuri on Stack Overflow

Demo2s

demo2s.com › java › apache-commons-onexit-tutorial-with-examples.html

Apache Commons OnExit tutorial with examples

The following code shows how to use OnExit from org.apache.commons.scxml.model. ... import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import no.hal.scxml.scxmlxt.AbstractState; import no.hal.scxml.scxmlxt.AbstractTransition; import no.hal.scxml.scxmlxt.AbstractTransitionEvent; import no.hal.scxml.scxmlxt.AbstractUriLiteral; import no.hal.scxml.scxmlxt.Action; import no.hal.scxml.scxmlxt.AssignmentAction; import no.hal.scxml.scxmlxt.BooleanLiteral; import no.hal.scxml.scxmlxt.Condition; import no.hal.scxml.scxmlxt.DelayLiteral; import no.hal.scxm

Oracle

docs.oracle.com › en › java › javase › 21 › core › managing-processes-asynchronously-onexit-method.html

Handling Processes When They Terminate with the onExit Method

October 20, 2025 - Afterward, it calls onExit().thenAccept(onExitMethod) on each of the processes; onExitMethod prints the process ID (PID), exit status, and output of the process. public class ProcessTest { // ... static public void startProcessesTest() throws IOException, InterruptedException { List<ProcessBuilder> greps = new ArrayList<>(); greps.add(new ProcessBuilder("/bin/sh", "-c", "grep -c \"java\" *")); greps.add(new ProcessBuilder("/bin/sh", "-c", "grep -c \"Process\" *")); greps.add(new ProcessBuilder("/bin/sh", "-c", "grep -c \"onExit\" *")); ProcessTest.startSeveralProcesses (greps, ProcessTest::pri

Stack Overflow

stackoverflow.com › questions › 2467070 › onexit-event-for-a-swing-application

java - OnExit Event For a Swing Application? - Stack Overflow

Top answer

1 of 3

35

Runtime.getRuntime().addShutdownHook(new Thread()
{
    @Override
    public void run()
    {
        updateZonas();
        db.close();
    }
});

This works for any Java application(Swing/AWT/Console)

2 of 3

29

Are you using a JFrame? if so you can try this:

    myframe.addWindowListener(new java.awt.event.WindowAdapter() {
        public void windowClosing(WindowEvent winEvt) {
            updateZonas();
            db.close();
            System.exit(0);
        }
    });

Tabnine

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Code Library - Tabnine

July 25, 2024 - Get the answers and suggestions you need from our AI code assistant. Get started in minutes with a free 90 day trial of Tabnine Pro.

Scaler

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Exit Method in Java - Scaler Topics

April 3, 2024 - This article explores how to effectively use System.exit() in Java, complemented by examples and a look into label-based control flow management, ensuring you can easily navigate through Java's program control options.

Baeldung

baeldung.com › home › java › core java › a guide to system.exit()

A Guide to System.exit() | Baeldung

January 16, 2024 - Learn how and when to use the Java System.exit() function.

Edureka

edureka.co › blog › system-exit-in-java

Exit function in Java | System.exit() Method with Example | Edureka

November 29, 2022 - If these questions bother you, you have landed at the right place. What can you do is, simply use a System.exit() Method which terminates the current Java Virtual Machine running on the system.

Oracle

docs.oracle.com › javase › 9 › docs › api › java › lang › Process.html

Process (Java SE 9 & JDK 9 )

Using onExit is an alternative to waitFor that enables both additional concurrency and convenient access to the result of the Process. Lambda expressions can be used to evaluate the result of the Process execution. If there is other processing to be done before the value is used then onExit ...

GeeksforGeeks

geeksforgeeks.org › java › system-exit-in-java

System.exit() in Java - GeeksforGeeks

April 21, 2025 - // Java program to demonstrate working of System.exit() import java.util.*; import java.lang.*; public class Geeks { public static void main(String[] args) { int arr[] = {1, 2, 3, 4, 5, 6, 7, 8}; for (int i = 0; i < arr.length; i++) { if (arr[i] > 4) { System.out.println("exit..."); // Terminate JVM System.exit(0); } else System.out.println("arr["+i+"] = " + arr[i]); } System.out.println("End of Program"); } }

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Oracle

docs.oracle.com › javase › 10 › docs › api › java › lang › Process.html

Process (Java SE 10 & JDK 10 )

Using onExit is an alternative to waitFor that enables both additional concurrency and convenient access to the result of the Process. Lambda expressions can be used to evaluate the result of the Process execution. If there is other processing to be done before the value is used then onExit ...

automateNow

automatenow.io › home › how to exit a program in java

How to Exit A Program in Java | automateNow

November 1, 2024 - Learn how to exit a Java program using System.exit(), returning from the main method, returning to the main method, or throwing an exception with detailed examples.

Stack Overflow

stackoverflow.com › questions › 49159686 › processhandle-onexit-has-empty-data

java - ProcessHandle onExit has empty data - Stack Overflow

Top answer

1 of 1

3

I think I found cause of this behaviour (at least on linux distribution).

ProcessHandle.Info object is created with following method:

public static ProcessHandle.Info info(long pid, long startTime) {
    Info info = new Info();
    info.info0(pid);
    if (startTime != info.startTime) {
        info.command = null;
        info.arguments = null;
        info.startTime = -1L;
        info.totalTime = -1L;
        info.user = null;
    }
    return info;
}

where info.info0(pid) is call to native method. So I've downloaded openjdk source code and checked this method implementation. On linux JVM retrieves process data by reading /proc/{pid}/stat,/proc/{pid}/cmdline, /proc/{pid}/exe which are no longer available after process termination.

To answer my question:

There is no way to get ProcessHandle.Info for finished process.

ExamClouds

examclouds.com › home › java core

Java System.exit() Method — How to Terminate a Program

Learn how to use the System.exit() method in Java to stop program execution. Understand its syntax, exit codes, and real-life usage examples.

LabEx

labex.io › tutorials › java-how-to-use-system-exit-method-419208

How to use system exit method | LabEx

Learn essential Java system exit techniques for graceful application termination, error handling, and resource management with practical code examples and best practices.

Java Code Geeks

examples.javacodegeeks.com › home › java development › desktop java › swing

How to Close an Application Properly - Java Code Geeks

October 5, 2016 - Shutdown hooks are get called to allow some last minute clearing before JVM actually terminates. System.exit() also accept an int status parameter where a non zero value denote abnormal execute and the result returned by java command to caller. In this java tutorial we will see example of closing both Java program and Java Swing application.

CodeGym

codegym.cc › java blog › core java › system.exit() in java

System.exit() in Java

September 28, 2023 - The System class in Java contains fields and methods to handle the SystemOne of them is the System.exit () method used in the Java language when you need to terminate a program or rather JVM instance that is currently running.

Stack Overflow

stackoverflow.com › questions › 5747803 › running-code-on-program-exit-in-java

Running code on program exit in Java - Stack Overflow