Re: Problems with Java Web Start and Java for Mac OS X 10.5 Update 4

Subject: Re: Problems with Java Web Start and Java for Mac OS X 10.5 Update 4

From: Mike Swingler <email@hidden>

Date: Wed, 17 Jun 2009 13:59:06 -0700

Delivered-to: email@hidden

On Jun 17, 2009, at 1:27 AM, Jan Lunddal Larsen wrote:

Hi,

Java for Mac OS X 10.5 Update 4 made changes to Java Web Start that made many apps work again on 32bit Intel machines - including ours.

But I have a problem with the created desktop shortcut which I didn't have in the latest beta of the Java update.

Our jnlp file works fine but when making a dekstop shortcut from within Java Cache Viewer, the app won't launch giving the following error:

[LaunchRunner Error] The main class "com.sun.javaws.Main" could not be found.

What happened between the latest beta and the final release?

We have been able to reproduce this internally, and it was caused by the Web Start shortcut app still looking for javaws.jar and deploy.jar inside of the 1.5 JVM bundle instead of in the Deploy.bundle. This can only be truly resolved by a change to the JavaApplicationLauncher.framework, and an external workaround does not appear possible (there is an option, but it breaks applets in currently shipping versions of Firefox and other browsers that use the Java Embedding Plugin).

Thanks to all of you who filed a bug on this,

Mike Swingler

Java Runtime Engineer

Apple Inc.

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References:
	>Problems with Java Web Start and Java for Mac OS X 10.5 Update 4 (From: Jan Lunddal Larsen <email@hidden>)