I am using the same live connect method to communicate between the applet and Javascript. I came across many different warning screens throughout the past few years from JRE6u45 until the current JRE8u131. It depends on which warning screen you are now facing. Did you use Firefox every time? Firefox does not support the Java … Read more
Sure, just extract the two jar files and recreate a new one $ mkdir tmp $ (cd tmp; unzip -uo ../jar1.jar) $ (cd tmp; unzip -uo ../jar2.jar) $ jar -cvf combined.jar -C tmp . The stuff with tmp ensures that the two existing jars are extracted into a clean directory and then the new one … Read more
3 easy steps keytool -genkey -keystore myKeyStore -alias me keytool -selfcert -keystore myKeyStore -alias me jarsigner -keystore myKeyStore jarfile.jar me
I had a similar problem with another Java app today. I think you may need to add your app to the “Allow the apps below …” list in this dialog (System Prefs -> Security & Privacy -> Accessibility):
The Java 7 release provides a (courtesy?) warning about something which has been in place for a decade… Trusted Timestamping was introducing in Java 5 (2004). The motivation was so that developers would not be forced “to re-sign deployed JAR files annually” when the certificates expired. → http://docs.oracle.com/javase/1.5.0/docs/guide/security/time-of-signing.html A URL-based Time Stamp Authority (TSA) is … Read more
A .class file is a compiled .java file. .java is all text and is human readable. .class is binary (usually). You compile a java file into a class file by going to the command line, navigating to the .java file, and running javac “c:\the\path\to\your\file\yourFileName.java” You must have a java SDK installed on your computer (get … Read more
I think Java applets were overshadowed by Flash and ActionScript (pun unintended), being much easier to use for what Java Applets were being used at the time (animations + stateful applications). Flash’s success in this respect in turn owes to its much smaller file sizes, as well as benefiting from the Sun vs. Microsoft suit … Read more
Aside from the obvious use of the Java console and the applet viewer, starting from Java 6 update 7, you can use the VisualVM that comes with the JDK (JDK_HOME/bin/visualvm). It allows you to view the stack traces of each thread and even view all object instances. AppletViewer is very handy, you can do a … Read more
You may corrupt the file during copy/transfer. Are you using maven? If you are copying keystore file with “filter=true”, you may corrupt the file. Please check the file size.
After reading Java 7 Update 21 Security Improvements in Detail mention.. With the introduced changes it is most likely that no end-user is able to run your application when they are either self-signed or unsigned. ..I was wondering how this would go for loose class files – the ‘simplest’ applets of all. Local file system … Read more