Re: JavaFX and Swing on same Thread

I haven't used this, but how can SwingUtilities.isEventDispatchThread()
return false and still be on the EDT?

You can probably make a small self-contained app and verify if this truly
works.

Another possibility is that org.netbeans.core.TimableEventQueue is getting
in the way of JavaFX.


--emi

On Fri, Mar 3, 2017 at 9:08 PM, Lusito <[email protected]> wrote:

> On the book "JavaFX- Rich Client Programming on the NetBeans Platform",
> the authors mentioned the experimental feature to run javafx on the same
> thread as swing.
>
> I was wondering if anyone got this working.
> I tried enabling it with this option in the app.conf:
>
> Code:
>  -J-Djavafx.embed.singleThread=true
>
>
> But I get an exception on startup:
>
>
> >       at org.netbeans.core.windows.WindowManagerImpl.warnIfNotInEDT(
> WindowManagerImpl.java:1770)
> >       at org.netbeans.core.windows.ModeImpl.setBounds(ModeImpl.java:180)
> >       at org.netbeans.core.windows.PersistenceHandler.
> initModeFromConfig(PersistenceHandler.java:465)
> >       at org.netbeans.core.windows.PersistenceHandler.load(
> PersistenceHandler.java:204)
> >       at org.netbeans.core.windows.WindowSystemImpl.load(
> WindowSystemImpl.java:81)
> >       at org.netbeans.core.GuiRunLevel$InitWinSys.run(GuiRunLevel.
> java:229)
> >       at java.awt.event.InvocationEvent.dispatch(
> InvocationEvent.java:311)
> >       at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
> >       at java.awt.EventQueue.access$500(EventQueue.java:97)
> >       at java.awt.EventQueue$3.run(EventQueue.java:709)
> >       at java.awt.EventQueue$3.run(EventQueue.java:703)
> >       at java.security.AccessController.doPrivileged(Native Method)
> >       at java.security.ProtectionDomain$JavaSecurityAccessImpl.
> doIntersectionPrivilege(ProtectionDomain.java:76)
> >       at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
> >       at org.netbeans.core.TimableEventQueue.dispatchEvent(
> TimableEventQueue.java:159)
> >       at java.awt.EventDispatchThread.pumpOneEventForFilters(
> EventDispatchThread.java:201)
> >       at java.awt.EventDispatchThread.pumpEventsForFilter(
> EventDispatchThread.java:116)
> >       at java.awt.EventDispatchThread.pumpEventsForHierarchy(
> EventDispatchThread.java:105)
> >       at java.awt.EventDispatchThread.pumpEvents(
> EventDispatchThread.java:101)
> >       at java.awt.EventDispatchThread.pumpEvents(
> EventDispatchThread.java:93)
> >       at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
> > SEVERE [global]
> > java.lang.AssertionError: Window System API is required to be called
> from AWT thread only, see http://core.netbeans.org/proposals/threading/
> >       at org.netbeans.core.windows.WindowManagerImpl.
> assertEventDispatchThread(WindowManagerImpl.java:1734)
> >       at org.netbeans.core.windows.ModeImpl.getSelectedTopComponent(
> ModeImpl.java:312)
> >       at org.netbeans.core.windows.PersistenceHandler.load(
> PersistenceHandler.java:236)
> >       at org.netbeans.core.windows.WindowSystemImpl.load(
> WindowSystemImpl.java:81)
> >       at org.netbeans.core.GuiRunLevel$InitWinSys.run(GuiRunLevel.
> java:229)
> >       at java.awt.event.InvocationEvent.dispatch(
> InvocationEvent.java:311)
> >       at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
> >       at java.awt.EventQueue.access$500(EventQueue.java:97)
> >       at java.awt.EventQueue$3.run(EventQueue.java:709)
> >       at java.awt.EventQueue$3.run(EventQueue.java:703)
> >       at java.security.AccessController.doPrivileged(Native Method)
> >       at java.security.ProtectionDomain$JavaSecurityAccessImpl.
> doIntersectionPrivilege(ProtectionDomain.java:76)
> >       at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
> >       at org.netbeans.core.TimableEventQueue.dispatchEvent(
> TimableEventQueue.java:159)
> > [catch] at java.awt.EventDispatchThread.pumpOneEventForFilters(
> EventDispatchThread.java:201)
> >       at java.awt.EventDispatchThread.pumpEventsForFilter(
> EventDispatchThread.java:116)
> >       at java.awt.EventDispatchThread.pumpEventsForHierarchy(
> EventDispatchThread.java:105)
> >       at java.awt.EventDispatchThread.pumpEvents(
> EventDispatchThread.java:101)
> >       at java.awt.EventDispatchThread.pumpEvents(
> EventDispatchThread.java:93)
> >       at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
> >
>
>
> Looking at the code, it seems SwingUtilities.isEventDispatchThread() is
> returning false at that point. That's weird, since the stacktrace shows it
> is on the EDT.
>
> I know this is marked experimental, but why mention it in the book, if
> it's preventing a netbeans platform app from running? So I'm guessing there
> must be some way to get this running.
>
>
>
>
>