My company is also experiencing webstart pain especially with JRE 1.6 update 19 and 20. Our problems revolve around the Mixed Code security warning. (everything is properly signed and the problem is intermittent) Anyhoo, I stumbled across getdown by threerings. I haven’t tried it yet, but seems promising https://github.com/threerings/getdown/wiki
Yes, this is true. This blog entry from Oracle has the details. As I understand it, you have three options for continuing to work: Sign your app with a trusted cert Normally, this is done by acquiring a cert from one of the vendors whose root certs are trusted by Java by default. You can … Read more
Extract required libraries into JAR – Extracts the actual .class files from the libraries your app uses and puts those .class files inside the runnable JAR. So, the runnable JAR will not only contain the .class files of your application, but also the .class files of all the libraries your application uses. Package required libraries … Read more
I found what I believe to be a better solution to this bug. I just added the following code before calling SwingUtilities or any Swing related component method. It create a new AppContext for the RMI Thread (RMI thread must be the current Thread when running the code below). if(AppContext.getAppContext() == null){ SunToolkit.createNewAppContext(); } Due … Read more
We experienced the same Problem with Java 7 Update 45 (1.7.0_45). The JNLP Spec gave a hint for a work-around: Properties set in the jnlp file will normally be set by Java Web Start after the VM is started but before the application is invoked. Some properties are considered “secure” properties and can be passed … Read more
I think your suggestion of opening a port to listen when you start your application is the best idea. It’s very easy to do and you don’t need to worry about cleaning it up when you close your application. For example, if you write to a file but someone then kills the processes using Task … Read more
(1) First, you need to create a text file with all of the attributes you want to add. My text file looks like this: Permissions: all-permissions Codebase: http://www.codebase.com/myApp/dist Application-Name: My Application I named it addToManifest.txt. Obviously, you’ll need to change the parameters to match your application’s needs. (2) Next, you need to add this to … Read more
You may want to look into using PersistenceService, a feature of Java Web Start that “provides methods for storing data locally on the client system, even for applications that are running in the restricted execution environment.” Related examples may be found here and here.
aaaaach you need doLayout(), next level :-), then there you can to set Maximum visible rows for JTextComponents too, with little effort doLayout() import java.awt.*; import javax.swing.*; import javax.swing.table.*; import javax.swing.text.*; //http://tips4java.wordpress.com/2008/10/26/text-utilities/ public class AutoWrapTest { public JComponent makeUI() { String[] columnNames = {” Text Area Cell Renderer “}; Object[][] data = { {“123456789012345678901234567890”}, {“dddddddddddddddddddddddddddddddddddddddddddddddddddddddddx”}, … Read more
It’s quite the same like with any other Java process you want to debug remotely: You have to set up some arguments for the VM (-Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,server=n,suspend=y,address=12345 ) and then connect to the given port. In Java webstart 6.0 this can be done with the -J option, in earlier version via environment variable JAVAWS_VM_ARGS. … Read more