mediathekview doesn't start, gives java.awt.AWTError

[Ulf Mehlig]

mediathekview doesn't start. On the commandline, the following messages appear:

$ mediathekview
. Proxy Authentication: not configured
Exception in thread "main" java.awt.AWTError: Assistive Technology not found: org.GNOME.Accessibility.AtkWrapper
 at java.desktop/java.awt.Toolkit.newAWTError(Toolkit.java:472)
 at java.desktop/java.awt.Toolkit.fallbackToLoadClassForAT(Toolkit.java:488)
 at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
 at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
 at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1608)
 at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
 at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
 at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
 at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
 at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
 at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
 at java.desktop/java.awt.Toolkit.loadAssistiveTechnologies(Toolkit.java:532)
 at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:613)
 at java.desktop/java.awt.Toolkit.getEventQueue(Toolkit.java:1494)
 at java.desktop/java.awt.EventQueue.invokeLater(EventQueue.java:1312)
 at mediathek.Main.startGuiMode(Main.java:153)
 at mediathek.Main.startUI(Main.java:145)
 at mediathek.Main.start(Main.java:129)
 at mediathek.Main.main(Main.java:116)
Caused by: java.lang.ClassNotFoundException: org.GNOME.Accessibility.AtkWrapper
 at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
 at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:190)
 at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
 at java.base/java.lang.Class.forName0(Native Method)
 at java.base/java.lang.Class.forName(Class.java:374)
 at java.desktop/java.awt.Toolkit.fallbackToLoadClassForAT(Toolkit.java:485)
 ... 17 more

This might be also a Java bug; there are various bug reports with java.awt.AWTError. However, the corresponding solutions like editing java properties or re-installing the JRE have not worked for me.

Cheers, Ulf

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: mediathekview 13.0.6-1
ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18
Uname: Linux 4.15.0-32-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: GNOME
Date: Thu Aug 30 07:50:08 2018
InstallationDate: Installed on 2016-07-03 (787 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: mediathekview
UpgradeStatus: Upgraded to bionic on 2018-04-28 (124 days ago)

[Ulf Mehlig (umehlig)]

Addedum: The described problem appears when using the Ubuntu default java (openjdk 10.0.2). When using the older 1.8.0_181, everything works as expected.

[Hans Joachim Desserud (hjd)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1788250, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.