RFR 8004547: Extend JavaFX launcher support...

[Mandy Chung]

Hi David,

On 12/20/2012 7:17 PM, David DeHaven wrote:
> Request for review for extending the launcher support to allow the JavaFX runtime to fully support all of it's launch features, including preloaders, classpath, etc..
>
> Webrev:
> http://cr.openjdk.java.net/~ddehaven/8004547/webrev.1/

FXHelper.canLauncherFXAppJar launches a JAR with 
JavaFX-Application-Class.  In the current version (before this fix), a 
FX JAR whose manifest can have a Main-Class entry that specifies the 
JavaFX application class that extends javafx.application.Application.  
Is that case no longer supported?  Other than that, looks good.

Minor comment: FXHelper.canLaunchFXAppJarand canLaunchFXAppClass - when 
they are called, we don't know if it's a FX class but I interpreted the 
canLaunchFXAppxxx method name that the given class is known to be an FX 
app but checking if it's launchable.  Would it be better to rename to 
isFXAppxxx?  Perhaps it's appropriate to call
    if (FXHelper.isFxAppJar(..)) {
        FXHelper.loadJavaFXLauncher();
        return FXHelper.class;
    }

Mandy