I am migrating Java 1.6 applets to Java 1.7. One of our applets periodically hits an URL to retrieve a dynamic status value: https://host/myapp/path/to/status And then it updates according to th...

I'd like to embed one ore more JavaFX applications on a webpage. How do you do that? There are several bits and pieces on the Oracle website, but there's no complete example. There's the Deployme...

Background Complete fresh installation of Oracle Java SDK (32-bit) on Linux. The installation is correct, the plugin is correctly installed. Problem The following error ("Application Blocked by ...

I'm trying to run a Java Applet (html file), but the browser keeps saying: "Your security settings have blocked a local application from running" I have tried using Chrome and Firefox but i g...

I have already asked this and was heavily downvoted. Unfortunately, I still can't solve it. I don't know what I do, but sooner or later I loose an ability to run java applets and java web start app...

I'm going to deploy my Java game to show it to my friends and whatnot, but I'm having trouble deciding between Java Web Start and applets. Under what conditions is one preferable over another and ...

My java applet stopped working once JRE was updated to 7u21. Short summary: The Exceptions I get are: netscape.javascript.JSException and java.lang.NoClassDefFoundError. the applet worked fine u...

I am using IText library to facilitate pdf export in an applet. During the export call it fails with following error: java.lang.NoSuchMethodError: com.lowagie.text.pdf.PdfPTable.completeRow()V I...

I like old Java applets. But because I really like the way JFX works, I want write some games using it (or even game making system, who knows?), but I'd like to be able to post them on my website. ...

I'm trying to debug an applet for 2 days now and I've gone over every solution posted on this site, but i can't find my mistake. At my Java Runtime Environment Settings i set up all my JREs with t...

The question is, How to solve "The certificate is not valid and cannot be used to verify the identity of this website" error?. Here are the details: I have a signed applet that has been working f...

This applies to subclasses of Applet, Servlet, Midlet, etc. Why do they not need a main()? If I wanted to create a Craplet class that starts at init() or something similar, is it bad design, or ho...

I'm getting message Target applet or JVM process exited abruptly sometimes and its not coming continuously so I can't trace the log before Java Console closes. I tried to increase heap size using ...

I'm trying to sign an applet so that the publisher does not appear as "UNKNOWN" : I work for an organisation and we have our own certification authority, certificate chain is the following : ORG...

Having had our application stop working when customers installed the 7u45 update, we're wondering what more we can do in the future to be ready for these updates up-front and avoid release-day supp...

I am having trouble embedding my applet into a webpage. I don't think I'm doing it correctly. * I have my html file in the same directory as my .class files My main method is in CardApp class Th...

I can not launch my java application as a web applet in HTML (I am using HTML 4.01, I know it doesn't work in html5). The error message it returns is: java : Unsupported major.minor versio...

Unfortunately, the workaround given by Oracle and others here (Java applet manifest - Allow all Caller-Allowable-Codebase) for getting around the 7 update 45 problem does NOT work if your app needs...

I'm the author of Wordle, one of the few surviving Java applets in the wild. Recently, I received user reports of warnings that my (signed) applet would soon be blackballed by the JRE because it d...

Last night a new Java 7 update has been released: 7u65. I have a web application where a service applet is loaded, and after the update, my tests on different PCs did not show issues nor wrong beha...

I am displaying applet using JNLP. I have written all the necessary files. The jars are signed. Even applet is loading fine. I am getting lots of messages in Java console which are contributing to ...

My question is regarding chrome announcement of Not supporting the NPAPI plugins post December, 2014. Firefox is also following the same. I have a NPAPI based plugin in one of my legacy application...

I would like to marshall Java objects into XML and vice-versa from within an Unsigned Applet and I can't change any of the security permission/policy files, or sign the application. I seem to get...

I have a couple of input methods for writing (Traditional Chinese) Taiwanese that come with the Windows 7. Also, all of the input methods have an option to switch the character width (single byte/d...

I want to be able to insert a Java applet into a web page dynamically using a Javascript function that is called when a button is pressed. (Loading the applet on page load slows things down too muc...