Deployment: Java Web Start not working?

steve · September 14, 2012 11:52AM

There is a known problem with launching Omniscope Online (Web Start) if your system has Java 7 installed.

You will see "Java(TM) Web Start Launcher has stopped working". Expanding "Problem details" and looking for "Exception Code" matching "c0000417" will confirm this issue.

The problem is caused by a bug in Java 7. You should revert to Java 6, until this issue is resolved.

Alternatively, edit the JNLP file (e.g. in notepad) and remove the "codebase" attribute of the "jnlp" tag. If you are launching from our website, you will need to download and edit the JNLP file. If you are hosting your own JNLP file, you should edit the file on the webserver. This workaround may have side-effects, such as inefficient JAR caching. See attached file, which will need to be renamed to have a "jnlp" extension.

steve · September 14, 2012 11:56AM

Please note that this is a bug with Java 7, not Omniscope, and is filed with Oracle here:

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7192904

October 19, 2012 7:29AM

Hi Steve - Any news regarding this topic? Our clients are asking questions.

Thanks

tjbate · October 19, 2012 12:22PM

Alex - Oracle still have not fixed the bug in Java, but we are trying to implement a workaround that avoids it...we will post here when it is working....

steve · October 23, 2012 4:19AM

We hope to have a fix in place in the next 2 days and will post back here.

mustafa · October 24, 2012 7:31AM

We have put in a fix for the Java 7 bug. The dynamically generated JNLP files that our servers produce have a workaround for the underlying bug with Java 7.

If you use our servers to dynamically create a JNLP file, e.g. by clicking Launch, or by building a custom link (beginning "http://tc.visokio.com"), you will benefit from this fix immediately.

If instead you host your own copies of JNLP files, you will need updated JNLP files. Download a fresh copy from our servers, and ensure your copies have the changed href attribute with encoded ?/& characters.

If you continue to get problems let us know.

Welcome!

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