Clear the session/cache/cookie in the JavaFX WebView

Question

I had a Swing dialog, which uses JavaFX WebView to display oAuth 2.0 URL from Google server.

public class SimpleSwingBrowser extends JDialog {

         


        

Answer 1

Session cookies for JavaFX WebView are stored in java.net.CookieHandler.

To manage cookies on your own create new instance of java.net.CookieManager:

java.net.CookieManager manager = new java.net.CookieManager();

Then set it as default:

java.net.CookieHandler.setDefault(manager);

To clear cookies just call removeAll method:

manager.getCookieStore().removeAll();

or just create new instance of cookie manager and set it as default:

java.net.CookieHandler.setDefault(new java.net.CookieManager());

Answer 2

I used JavaFX 8 WebView to display OAuth 2.0 from Google as well as from Dropbox. Turned out setting a new instance of java.net.CookieManager() as default worked with Google (and of course removed the session cookies), but I wasn't able to sign in with my Dropbox account anymore. The "Sing in" button just did not work.

I debugged and found out that per default an instance of com.sun.webkit.network.CookieManager is used. So, I used

java.net.CookieHandler.setDefault(new com.sun.webkit.network.CookieManager());

which solved my problem. Due to its javadoc it's RFC 6265-compliant, which is the current definition of HTTP Cookies and Set-Cookie header fields.

You need to use the JDK (not just the JRE) as your project's system library due to some access restrictions in the JRE.