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Error publishing to Essential Viewer
Posted: 08 Feb 2016, 21:07
by jcwillard
I have successfully upgraded to EMM 505. I am running in multi-user mode, on Windows server 2012R2 with Tomcat 7.0.55 and MYSQL backend. On the server itself I can open the Protégé repository in server mode, edit, and publish to the viewer. On my client, I can connect to the remote repository, open it, edit and save them successfully. However when I try to publish to the repository from the client, it fails with the error "Exception in thread AWT-EventQueue-0" and sun.java2d.HeadlessGraphicsEnvironment cannot be cast to sun.awt.Win32GraphicsEnvironment."
Is this because of the difference in Java versions between the client and the server? On the server I am running Java 1.7.0_67 and on my client I am running 1.8.0_51. If this is the source of my problem, should I upgrade the entire server to 1.8 or should I downgrade my client to 1.7? I am hoping that the upgrade is the correct answer, since I hope to deploy the client to other workstations where I may not be able to control the Java version.
Thank you in advance for your reply.
Re: Error publishing to Essential Viewer
Posted: 10 Feb 2016, 10:23
by jonathan.carter
Hi,
Thanks for posting.
This could well be a Java version issue but I think it would be worth looking into the error message a bit more.
Could you post more details of the exception message / stack to see where this error is being thrown?
Getting the JVMs to a roughly compatible level makes a lot of sense, here. There can be some incompatibilities. Unless you have many existing users running on Java 7, it's probably worth getting the server upgraded to Java 8 in line with your workstation.
Either way, it would be great to get a detailed message from the exception to help us identify the issue.
Jonathan
Re: Error publishing to Essential Viewer
Posted: 10 Feb 2016, 19:16
by jcwillard
Code: Select all
Server: Adding Session(id=7, user=JohnWillard) on Mon Feb 08 14:28:43 EST 2016
Server: Opened project VDOT Test Repository for Session(id=7, user=JohnWillard)
on Mon Feb 08 14:28:43 EST 2016
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: sun.java2d.
HeadlessGraphicsEnvironment cannot be cast to sun.awt.Win32GraphicsEnvironment
at sun.awt.windows.WToolkit$5.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Sour
ce)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Server: Removing Session(id=7, user=JohnWillard) on Mon Feb 08 15:06:44 EST 2016
This repeats multiple times in the file as I attempt to publish the repository to the viewer. In copying this over I notice that it records a "Adding Session" event when I tried to begin publishing and then removes that session at the end when I have failed in publishing. I do not know if that is expected behavior or not.
Thank you.
Re: Error publishing to Essential Viewer
Posted: 10 Feb 2016, 21:31
by jcwillard
Sorry, I probably should have said that the previous trace was generated on the server. On the client, I get this:
Code: Select all
Caught the exception:
java.lang.NullPointerException
java.lang.NullPointerException
at com.enterprise_architecture.essential.xml.XMLRenderer.<init>(XMLRende
rer.java:138)
at com.enterprise_architecture.essential.widgets.EasReportTab.generateRe
port(EasReportTab.java:919)
at com.enterprise_architecture.essential.widgets.EasReportTab.actionPerf
ormed(EasReportTab.java:639)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Sour
ce)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
Source)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source
)
Hope that helps.
Re: Error publishing to Essential Viewer
Posted: 12 Feb 2016, 18:12
by jonathan.carter
Thanks, that's perfect.
We've identified a bug in the XML rendering package. A new version of the Essential software is now available for you to download.
The fix impacts:
- Viewer Tab in Protege
- Snapshot Tab in Protege
- Essential Import Utility
Unless you are installing to a fresh environment, you should download the Upgrade installer. This will upgrade your Protege plugins and deploy a new version of the Viewer and the Import Utility (importantly, without over-writing your existing Viewer and Import Utility).
As part of this release, we've also included some small updates to the Viewer.
Jonathan
Re: Error publishing to Essential Viewer
Posted: 16 Feb 2016, 22:08
by jcwillard
Jonathan:
Thank you. That resolved my problem.
Re: Error publishing to Essential Viewer
Posted: 22 Feb 2016, 18:03
by jonathan.carter
Great stuff - really pleased to hear that.
Thanks for confirming that the update fixed the issue.
Do keep us posted with how you get on with Version 5!
Jonathan