Hi Lior, Could you share a simplified test application with the html content or web content which leads to “webview frame comes up empty” so that I can test and debug at my end.
Thanks, Guru > On 11-Feb-2020, at 8:51 PM, Lior Yaffe <lior.ya...@jelurida.com> wrote: > > Test results: > OpenJFX 11 never hangs > OpenJFX 13 always hangs > OpenJFX 15ea the webview frame comes up empty but the runtime never hangs > > The Java version has no effect. > The hang seems to occur in native code since there is no way to take a thread > dump using jstack and the only possible action is to kill the process. > Is there any other logging or diagnostic you can suggest? > > > February 10, 2020 7:24:54 PM CET Kevin Rushforth <kevin.rushfo...@oracle.com> > wrote: Can you also try JDK 11 with OpenJFX 13? I suspect it will not make > a difference (i.e., it will still hang), but it would be good to > confirm. And even more interesting will be the results of JavaFX 15-ea. > > Thanks. > > -- Kevin > > On 2/10/2020 10:17 AM, Lior Yaffe wrote: > > The problem does not reproduce when using JavaFX 11 regardless of the > version of Java being used. > I will try with Java 15ea > > On Mon, Feb 10, 2020, 17:01 Kevin Rushforth > <kevin.rushfo...@oracle.com> wrote: > > And one last thing to try: can you run it with the JavaFX > 15-ea+1 build > and see if that makes a difference? > > -- Kevin > > On 2/10/2020 6:59 AM, Kevin Rushforth wrote: >> Seems I missed your comment about it being hung to the point you >> can't >> run jstack. >> >> If you are using JDK 12 or later, you might try with JDK 11 and see >> if >> that makes a difference. It will help narrow it down to a change in >> the JDK versus a change in JavaFX (although I suspect it's a change >> in >> JavaFX). >> >> -- Kevin >> >> On 2/10/2020 6:40 AM, Kevin Rushforth wrote: >>> A thread stack dump using "jstack" might be helpful. >>> >>> Also, what version of the JDK are you running? >>> >>> -- Kevin >>> >>> >>> On 2/9/2020 4:07 AM, Lior Yaffe wrote: >>>> My application is a Java application running a Javascript/Html >>>> website >>>> inside a JavaFX WebView. It was working stable for several years >>>> with >>>> various versions of Java and JavaFX. >>>> As far as I can tell it is following best coding practices such >>>> as >>>> running >>>> all UI code in the JavaFX thread and as such. >>>> >>>> Since upgrading to JavaFX 13 my application hangs sporadically. >>>> When it >>>> happens the website running inside the webview becomes >>>> unresponsive and >>>> displays an hourglass icon. >>>> When the app hangs I cannot take a thread dump using jstack or >>>> close >>>> the >>>> application. I have to kill it. >>>> >>>> The problem is reproduced on multiple Windows workstations. It >>>> was >>>> never >>>> reported or reproduced on Linux or Mac so there is a chance it is >>>> Windows >>>> specific. >>>> When the app hangs the CPU is ideal so this is not a busy loop. >>>> Which diagnostic information can I obtain to better understand >>>> this >>>> problem? >>> >>
