The first thing you should try is to make sure that you have the latest Java. Get a head start on your coding by leveraging Docker images to efficiently develop your own unique applications on Windows and Mac. Java security settings are set too high. Currently Sun does not have a Java Plug-in for Macs, but Mac OS X ships with a sufficiently recent version of Java.You are using outdated Java (below Oracle's security baseline).If a web page with Java Uploader or Downloader displays correctly, but does not upload or download chosen files, this may mean two things:
On Macintosh Google Chrome is incompatible with most Java web applications and web pages that use a Java applet, due to the fact that the Java plugin is 64-bit and Google Chrome is 32-bit. In addition, solving bugs in Eclipse for Mac OS X is relative slow as compared to other platform. Enable java plugin in your web browser After installing or upgrading Java, completely quit, then relaunch the web browser. There is a need to come out with a simple and systematical trouble-shooting to isolate the cause of failure in activation for newbie in Java development. If you click the Allow now button, you will encounter this problem again when visiting other web pages that use Java. Very often, it worked on the first installation and failed on the subsequent activation. When you click Allow and Remember Firefox adds the current webpage to an internal whitelist, whereby the Java applet will run automatically in the future without further intervention.
