It’s no secret that there have been some issues within the last few years between the folks at Apple, and the folks at Oracle, who now own the rights to the Java language and software engines. Due to several security concerns, Apple, along with several other developers, have adjusted their approach to running Java apps and applets in order to protect consumers from potentially-dangerous code being run on their machines. On paper, this sounds like a good strategy to ensure the safety of user information.
But what if you legitimately have a need to run a Java app? There are so many different versions of Java Runtime Engines (also known as JRE, or the environment in which Java code is executed on an operating system) that finding the right combination can be tricky. Once you *do* find the correct version (or versions), security concerns such as the ones previously mentioned may still keep these apps from performing properly.
One way Java apps are distributed is called Java Web Start (see here for more information on this technology). These are small files that are downloaded and executed, as opposed to embedded code within a webpage. By default on several operating systems, including Apple’s OS X, these files are not executed automatically, which means they act as a regular download that must be double-clicked (or Command-O, for the keyboard fanatics out there like me) in order to run. While this isn’t a complete roadblock, it does diminish the convenience factor. Thankfully, there’s a way to get these programs to run automatically as they are downloaded, using Apples wonderful Automater tool. Here’s how:
Java3D 1.6 Web Start from Mac OS X to Multi OS. I have serious problems getting our applications on web start running. I am using J3D 1.6 rc11 successfully for a longer time already for our.
Note: The screenshots in this document are tailored towards Apples most-recent version of OS X, Yosemite. If you are on an older version of OS X, the pictures and steps may not match up perfectly.
Now, whenever a .jnlp file is downloaded or otherwise placed in your Downloads folder, Automater will run (you will see a spinning gear in the top right of the menu bar). Once the Jawa Web Start file is finished, the gear will go away.
Note: The script used in this example is specifically designed for opening .jnlp files, however it can be easily adjusted to perform roughly any task on any type of file. This, however, is outside of the scope of this post.
While you’re at it, check out some of these sites for more Automator workflow ideas.
(Please note, the following sites are not affiliated with Byteworks)
GalaxyAdmins
Meetups Future Surveys
The GalaxyAdmins group uses the University of Iowa's Blackboard Collaborate (Ellumiate Live!) web conference system for it's conference call meetups.
Blackboard Collaborate (Ellumiate Live!) Tips
You do not need any special client, just a web browser and Java installed (the client will run as a Java web start app).
If you are using a recently updated version of Mac OS X, you will need to take some extra steps to get Java Web Start to work.
If you have headphones they greatly improve your audio and a headset really helps when you are speaking.
A couple of things to mention, when you launch your session - you can tune your connection speed:
Talking works like a walkie-talkie .. you have to select 'Talk' (see capture below) to open up your audio line. There can only be 6 simultaneous talkers. Please only select the talk button when you need to actually talk to reduce background noise and to free up lines for others to participate.
Java Web Start on Mac OS X
If you are running any moderately recent version of OS X, you may need to take some additional steps. See this RacoonLab posting for details. Get cpu usage python.
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How do I know I have this problem?
These two situations are known to be fixed with this solution:
then
you probably have this problem.
How do I fix this problem?
Java Web Start Application Download
In the shell enter Best powerpoint remote app for mac.
sudo /usr/libexec/PlistBuddy -c 'Delete :JavaWebComponentVersionMinimum' /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/XProtect.meta.plist
Run Java On Mac
Command for mac app. You should then be able to launch the
meeting.jnlp by double clicking on it.
What Is Windows
You may also find that you receive a message indicating that the file cannot be opened because it was not downloaded from the Mac App Store. This can be worked around by right clicking the
meeting.jnlp file and clicking 'Open' in the menu that pops up. More details about this error can be found here.
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