The information on this page is intended for users checking their Java version using the Java Web Start option provided on the site.

What are the system requirements?

Operating system: The app works only on current Windows versions
Java version: Runs with Java 6u10 and later versions.

How does the Verify Web Start app differ from the verification applet?

The Web Start app does not run in a browser. This enables verification for browsers that do not support the Java plugin, such as Chrome, Edge, 64-bit Firefox, and Firefox 52 and later versions. The app runs in a separate window, not dependent on browsers or the Java plug-in.

How does the Java Web Start app work?

After the application is downloaded for the first time, it is stored locally on your computer. When you start the application, the Java Web Start application checks the website to see if an updated version of the app is available. If so, the app is updated and launched from the local copy of the application.

How do I run the Verify Web Start app?

1. Download the jnlp file, JavaDetection.jnlp
2. Click on the jnlp file and if requested, permit Java Detection app to run

1. Download the jnlp file

On the verification page, click the Verify Java link or button. Depending on your browser settings you may need to give permission to download the jnlp file.

2. Click on the jnlp file and if requested, permit the Java Detection app to run

After the jnlp file is downloaded, click on the jnlp file and if requested, permit the Java Detection app to launch. A Java progress indicator appears.

Java progress indicator

You might then be asked for permission to run the Java Detection app. Click Run to start the app.

Java Detection permission to run dialog

After giving permission to run the Java Detection app, the app runs in a new window.

How do I remove the Web Start app?

Java Web Start apps can be removed through the Java Control Panel.

1. Launch the Java Control Panel
2. Click on the General tab
3. Click on the View button from the Temporary Internet Files section
4. Select the respective application from the list then click the Remove selected items icon (Red X)

Launching the Java Control Panel

» Windows

Browser download information

Accessing the downloaded file differs according to which browser is used.

Chrome

At the bottom of the Chrome browser, a prompt appears:

Click Keep then click the downloaded jnlp to start the application.

Internet Explorer

At the bottom of the Internet Explorer browser, a prompt appears:

Click Open to run the app, or Save to run the app later. After downloading the jnlp, permit the Java Detection app to run.

Edge

The first time you download the file, Edge will ask whether to save or cancel the download from java.com.

Choose Save.

After downloading the jnlp, you will be asked:

click Open to start the application. You can also run the file later from the Downloads folder.

Firefox

The first time you launch the app, Firefox will ask how to handle the file: Open or Save. If you choose Open with the Java Web Start Launcher, the application will start. If you save the file, you can click on the saved file to launch the app.