Go Back   DisplayLink Forum > DisplayLink Graphics Technology > Mac Software

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-09-2018, 09:29 AM   #1
tjgrant
Junior Member
 
Join Date: Apr 2017
Posts: 4
Default 4.3 Beta 3: Java Apps crash on launch if connected to external DisplayLink device

Hi there,

4.3 beta 3 looks good so far, except I noticed some Java apps I normally use failed to launch. I even figured it was Java itself and re-installed it many times with the same issues.

As it turns out, when the DisplayLink device is not connected, the Java apps will launch correctly.

How to reproduce:

1. Connect first monitor as normal
2. Connect second monitor via Diamond BVU 195
3. Ensure DisplayLink 4.3 beta 3 software driver is installed
4. Properly set up as "Using separate display" in AirPlay
5. Go to "System Preferences" app
6. Open "Java" preference pane
* Notice Java Control Panel should open, but doesn't
7. Click "Reopen the Java Control Panel" button
* Again notice Java Control Panel does not open
8. Try with other AWT-based Java apps (one example below with crash log)
9. Disconnect DisplayLink device
10. Click "Reopen the Java Control Panel" button
* Notice now this opens without issues

Example output from command line attempt to run yEd graph editor from: https://www.yworks.com/products/yed/download

Code:
xxx-MacBook-Pro:Applications xxx$ ./yEd.app/Contents/MacOS/yEd 
Exception in thread "main" java.lang.NullPointerException
	at java.awt.Window.init(Window.java:497)
	at java.awt.Window.<init>(Window.java:537)
	at java.awt.Frame.<init>(Frame.java:420)
	at java.awt.Frame.<init>(Frame.java:385)
	at com.yworks.A.P.R.<init>(Unknown Source)
	at com.yworks.A.D.ć(Unknown Source)
	at com.yworks.A.D.Ă(Unknown Source)
	at com.yworks.A.D.ā(Unknown Source)
	at com.yworks.A.yEd.ā(Unknown Source)
	at com.yworks.A.yEd.main(Unknown Source)
2018-05-09 02:15:57.135 yEd[14949:336028] yEd:Failed to launch JVM
So again-- this seems to be an issue relevant to the new DisplayLink driver, and not related either to Java itself nor the Java apps I'm trying to run.

If you could provide a solution, I would appreciate it. Thank you.

Last edited by tjgrant; 05-09-2018 at 09:32 AM.
tjgrant is offline   Reply With Quote
Old 07-09-2018, 05:04 PM   #2
Jjk
Junior Member
 
Join Date: Jul 2018
Posts: 2
Default Having same issue here

Having the same issue.

Whenever I try to launch Java GUI apps (java 1.8) while connected to DisplayLink it crashes.
java.lang.NullPointerException
at java.awt.Window.init(Window.java:497)
at java.awt.Window.<init>(Window.java:537)
at java.awt.Frame.<init>(Frame.java:420)
at java.awt.Frame.<init>(Frame.java:385)
at javax.swing.SwingUtilities$SharedOwnerFrame.<init> (SwingUtilities.java:1758)
at javax.swing.SwingUtilities.getSharedOwnerFrame(Swi ngUtilities.java:1833)


./bin/java -version
java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)

If I unplug the DisplayLink then start, the app comes up without any issue and will continue to run even after I plug DisplayLink back in.

Display Link Version:
Version: 4.3 (124)
Last Modified: 6/18/18, 9:29 AM
Bundle ID: com.displaylink.driver.DisplayLinkDriver
Loaded: Yes
Get Info String: DisplayLink Driver 4.3.124 - Copyright 2003 - 2018 DisplayLink (UK) Ltd. All rights reserved.
Obtained from: Identified Developer
Kind: Intel
Architectures: x86_64
64-Bit (Intel): Yes
Location: /Library/Extensions/DisplayLinkDriver.kext
Kext Version: 4.3 (124)
Load Address: 18446743521820100000
Loadable: Yes
Dependencies: Satisfied
Signed by: Developer ID Application: DisplayLink Corp (73YQY62QM3), Developer ID Certification Authority, Apple Root CA


MacOS version:
System Version: macOS 10.13.5 (17F77)
Kernel Version: Darwin 17.6.0
Jjk is offline   Reply With Quote
Old 07-19-2018, 09:56 PM   #3
Gudd
Junior Member
 
Join Date: Jul 2018
Posts: 10
Default

Quote:
Originally Posted by tjgrant View Post
4.3 beta 3 looks good so far, except I noticed some Java apps I normally use failed to launch. I even figured it was Java itself and re-installed it many times with the same issues.

As it turns out, when the DisplayLink device is not connected, the Java apps will launch correctly.
Thank you so much for highlighting this! I use a bunch of JetBrains applications for work to develop JavaEE stuff all on a DisplayLink dock. Sounds like I need to avoid the new driver like the plague for now!!
Gudd is offline   Reply With Quote
Old 03-17-2019, 04:54 PM   #4
phs
Junior Member
 
Join Date: Mar 2019
Posts: 3
Default

Same issue here.

macOS: 10.14.3
DisplayLink Driver: 5.1
Java: 1.8.0_201-b09

Reproduce via terminal:

Code:
jvisualvm -J-Dnetbeans.logger.console=true
Output is:

Code:
java.lang.NullPointerException
	at java.awt.Window.init(Window.java:497)
	at java.awt.Window.<init>(Window.java:537)
	at java.awt.Frame.<init>(Frame.java:420)
	at org.netbeans.core.startup.Splash.setRunning(Splash.java:119)
	at org.netbeans.core.startup.Main.start(Main.java:257)
	at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:84)
	at java.lang.Thread.run(Thread.java:748)
Workaround is to start app from macBook screen (configured as main screen).
phs is offline   Reply With Quote
Old 04-02-2019, 10:43 PM   #5
Jjk
Junior Member
 
Join Date: Jul 2018
Posts: 2
Default Somewhat of a workaround - for anyone still experiencing this

If I make my macbook monitor the primary display then Java AWT applications can start without the error.

Still a bit of an annoyance as I don't use the laptop monitor much while docked (and now apps want to default to that screen) but at least I can open java apps with this configuration.
System Preferences > Displays > Arrangement tab > drag the title bar to your laptop display.

Hope that might be useful as a workaround for folks that are still seeing this issue, and perhaps a clue to DL team on where the problem might be.
Jjk is offline   Reply With Quote
Old 04-11-2019, 03:50 PM   #6
xicilihox
Junior Member
 
Join Date: Apr 2019
Posts: 3
Default Working fine with update

Hi buddy, did you try upgrading as doing so is working fine for me as of now.
__________________
Sincerely,
Xici Lihox
xicilihox is offline   Reply With Quote
Old 04-19-2019, 05:20 PM   #7
paperboy
Junior Member
 
Join Date: Apr 2019
Posts: 1
Default Re: Working fine with update

Which update are you referring to that works? I have 5.1.32 and I'm still unable to open Java apps on my DisplayLink screens. If I move to the actual laptop screen and open, it works fine.
paperboy is offline   Reply With Quote
Reply

Tags
beta, crashing, displaylink, java

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 09:24 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.