Alexander Veit created TIKA-4378:
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Summary: Tika app throws java.awt.HeadlessException
Key: TIKA-4378
URL: https://issues.apache.org/jira/browse/TIKA-4378
Project: Tika
Issue Type: Bug
Components: app
Affects Versions: 3.1.0
Environment: {noformat}
Distributor ID: Debian
Description: Debian GNU/Linux 12 (bookworm)
Release: 12
Codename: bookworm
openjdk 21.0.6 2025-01-21 LTS
OpenJDK Runtime Environment Temurin-21.0.6+7 (build 21.0.6+7-LTS)
OpenJDK 64-Bit Server VM Temurin-21.0.6+7 (build 21.0.6+7-LTS, mixed mode,
sharing){noformat}
Reporter: Alexander Veit
When starting Tika App it throws a java.awt.HeadlessException.
The command should only enter GUI mode if invoked with the -g or --gui option.
{noformat}
java -jar tika-app-3.1.0.jar
Exception in thread "AWT-EventQueue-0" java.awt.HeadlessException:
No X11 DISPLAY variable was set,
or no headful library support was found,
but this program performed an operation which requires it, at
java.desktop/java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:164)
at java.desktop/java.awt.Window.<init>(Window.java:553)
at java.desktop/java.awt.Frame.<init>(Frame.java:428)
at java.desktop/javax.swing.JFrame.<init>(JFrame.java:224)
at org.apache.tika.gui.TikaGUI.<init>(TikaGUI.java:159)
at org.apache.tika.gui.TikaGUI.lambda$main$0(TikaGUI.java:203)
at
java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
at
java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
at
java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at
java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
at
java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at
java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at
java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at
java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at
java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at
java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90){noformat}
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