Gentlemen, Thank you for the informative replies.
My understanding with plugin2 and Swing back in Java 6 was that as long as the jvm parameters for each applet were the same, 2 applets on the same html page could share the jvm. I can see, however, that JavaFX running in the native GUI thread would make it really hard to support 2 applets (and therefore 2 javafx.application.Applications) in the same JVM. To Kevin's question, we were looking for 2 things from multiple applets in a shared JVM: 1) reduced resource consumption compared to separate JVMs 2) hopefully easier inter applet communication With a trivial Java 8 update 20 applet needing 141 Meg, if there are several, they can start to add up memory wise. As to #2, we can probably have the multiple applets communicate through javascript (since the javascript support seems to be pretty strong). Not as elegant, but it will probably work. Thanks, Neil From: Kevin Rushforth <kevin.rushfo...@oracle.com> To: Richard Bair <richard.b...@oracle.com>, Cc: Stephen F Northover <steve.x.northo...@oracle.com>, ngalarn...@abinitio.com, openjfx-dev@openjdk.java.net Date: 07/08/2014 03:48 PM Subject: Re: 2 JavaFX applets in the same JVM Hi Neil, What problem are you trying to solve? Running multiple applets in the same VM is a means to some end for you, so knowing what you are trying to do might lead to a discussion of another way to accomplish what you need. -- Kevin Richard Bair wrote: And to top it all off, supporting shared JVMs is extremely security challenging. On Jul 8, 2014, at 12:40 PM, Stephen F Northover <steve.x.northo...@oracle.com> wrote: This would imply that there was more than on distinguished GUI thread per process. JavaFX runs in the native GUI thread by design and more than one GUI thread is not supported in JavaFX and on some platforms (ie. Mac). Steve On 2014-07-08, 3:31 PM, Kevin Rushforth wrote: Is running 2 JavaFX applets in the same JVM supported? No, this is not supported. RT-29969 (and the non-public RT-32321) is about running multiple applets from the same web page, each in their own JVM. By design, JavaFX runs each applet in its own VM. It is very unlikely that we would ever add the ability to run more than JavaFX applet in the same VM. -- Kevin ngalarn...@abinitio.com wrote: Hello, What is the status of running 2 JavaFX applets in the same JVM (separate_jvm = false)? When we try to load 2 applets into the same JVM we get a runtime error (I think it was class loader related). When I searched in jira I found RT-29969 (the 2 applet test it refers to may or may not be in the same JVM) which points to RT-32321 which seems to be private (it gives me an error when I try to access it). Is running 2 JavaFX applets in the same JVM supported? If not, is that a bug or a feature? Thanks, Neil NOTICE from Ab Initio: This email (including any attachments) may contain information that is subject to confidentiality obligations or is legally privileged, and sender does not waive confidentiality or privilege. If received in error, please notify the sender, delete this email, and make no further use, disclosure, or distribution.
