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[Launchpad Bug Tracker <1788250@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package openjdk-lts -
10.0.2+13-1ubuntu0.18.04.2

---------------
openjdk-lts (10.0.2+13-1ubuntu0.18.04.2) bionic-security; urgency=medium

  * debian/rules: by default leave atk disabled, move accessibility bridge to
    recommends. LP: #1788250. LP: #1788267.
  * debian/control.in, debian/control: move accessibility bridge to
    recommends.

 -- Tiago Stürmer Daitx <tiago.daitx@xxxxxxxxxx>  Fri, 24 Aug 2018
17:36:24 +0000

** Changed in: openjdk-lts (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1788250

Title:
  AWT applications fail with  java.awt.AWTError: Assistive Technology
  not found: org.GNOME.Accessibility.AtkWrapper

Status in jEdit:
  New
Status in JOSM:
  Unknown
Status in java-atk-wrapper package in Ubuntu:
  Invalid
Status in openjdk-8 package in Ubuntu:
  Confirmed
Status in openjdk-lts package in Ubuntu:
  Fix Released

Bug description:
  After recently upgrading to 10.0.2+13-1ubuntu0.18.04.1 in bionic, all
  AWT applications have started failing with this exception: (using
  jedit as an example, but it happens for lots of apps):

   ~  jedit
  18:12:48 [main] [error] main: Exception in thread "main"
  18:12:48 [main] [error] main: java.awt.AWTError: Assistive Technology not found: org.GNOME.Accessibility.AtkWrapper
  18:12:48 [main] [error] main:  at java.desktop/java.awt.Toolkit.newAWTError(Toolkit.java:472)
  18:12:48 [main] [error] main:  at java.desktop/java.awt.Toolkit.fallbackToLoadClassForAT(Toolkit.java:488)
  18:12:48 [main] [error] main:  at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
  18:12:48 [main] [error] main:  at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
  18:12:48 [main] [error] main:  at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1608)
  18:12:48 [main] [error] main:  at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
  18:12:48 [main] [error] main:  at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
  18:12:48 [main] [error] main:  at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
  18:12:48 [main] [error] main:  at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
  18:12:48 [main] [error] main:  at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
  18:12:48 [main] [error] main:  at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
  18:12:48 [main] [error] main:  at java.desktop/java.awt.Toolkit.loadAssistiveTechnologies(Toolkit.java:532)
  18:12:48 [main] [error] main:  at java.desktop/java.awt.Toolkit.getDefaultToolkit(Toolkit.java:613)
  18:12:48 [main] [error] main:  at java.desktop/java.awt.EventQueue.invokeAndWait(EventQueue.java:1342)
  18:12:48 [main] [error] main:  at java.desktop/javax.swing.SwingUtilities.invokeAndWait(SwingUtilities.java:1480)
  18:12:48 [main] [error] main:  at org.gjt.sp.jedit.GUIUtilities.showSplashScreen(GUIUtilities.java:1957)
  18:12:48 [main] [error] main:  at org.gjt.sp.jedit.jEdit.main(jEdit.java:389)
  18:12:48 [main] [error] main: Caused by: java.lang.ClassNotFoundException: org.GNOME.Accessibility.AtkWrapper
  18:12:48 [main] [error] main:  at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
  18:12:48 [main] [error] main:  at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:190)
  18:12:48 [main] [error] main:  at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
  18:12:48 [main] [error] main:  at java.base/java.lang.Class.forName0(Native Method)
  18:12:48 [main] [error] main:  at java.base/java.lang.Class.forName(Class.java:374)
  18:12:48 [main] [error] main:  at java.desktop/java.awt.Toolkit.fallbackToLoadClassForAT(Toolkit.java:485)
  18:12:48 [main] [error] main:  ... 15 more

  Downgrading to 10.0.1+10-3ubuntu1 fixes the bug.

  Work Around
  -----------
  Comment out line with 'assistive_technologies=org.GNOME.Accessibility.AtkWrapper'
  in /etc/java-11-openjdk/accessibility.properties

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