Java awt headlessexception no x11 display variable was set but this program

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«Нет переменной X11 DISPLAY» — что это значит?
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No X11 DISPLAY variable was set, but this program performed an operation which requires it #21383
No X11 DISPLAY variable was set, but this program performed an operation which requires it #21383
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Summary

«Нет переменной X11 DISPLAY» — что это значит?

Я пытаюсь установить программу (приложение Java) на моем компьютере Linux (я использую Slackware). Я получил следующую ошибку, и я ее не понимаю. Не могли бы вы посоветовать мне, как подойти к проблеме? Я не уверен, что это вопрос, который я мог бы задать здесь, потому что это не совсем вопрос программирования, но я был бы признателен, если бы вы ответили. Спасибо. Вот что я получаю: (я вижу, что нужно установить некоторую переменную X11 DISPLAY, но какое значение я должен ей дать и как?)

~$ java -jar gate-5.0-beta1-build3048-installer.jar - ERROR - java.awt.HeadlessException: No X11 DISPLAY variable was set, but this program performed an operation which requires it. java.awt.HeadlessException: No X11 DISPLAY variable was set, but this program performed an operation which requires it. at java.awt.GraphicsEnvironment.checkHeadless(Graphic sEnvironment.java:159) at java.awt.Window.(Window.java:407) at java.awt.Frame.(Frame.java:402) at net.sourceforge.mlf.metouia.borders.MetouiaDotsBuf fer.(MetouiaDotsBuffer.java:105) at net.sourceforge.mlf.metouia.borders.MetouiaDots.(MetouiaDots.java:66) at net.sourceforge.mlf.metouia.borders.MetouiaToolBar Border.(MetouiaToolBarBorder.java:49) at net.sourceforge.mlf.metouia.MetouiaLookAndFeel.ini tComponentDefaults(MetouiaLookAndFeel.java:241) at javax.swing.plaf.basic.BasicLookAndFeel.getDefault s(BasicLookAndFeel.java:130) at javax.swing.plaf.metal.MetalLookAndFeel.getDefault s(MetalLookAndFeel.java:1591) at javax.swing.UIManager.setLookAndFeel(UIManager.jav a:537) at javax.swing.UIManager.setLookAndFeel(UIManager.jav a:581) at com.izforge.izpack.installer.GUIInstaller.loadLook AndFeel(GUIInstaller.java:373) at com.izforge.izpack.installer.GUIInstaller.(G UIInstaller.java:116) at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInsta nce(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newI nstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Construc tor.java:513) at java.lang.Class.newInstance0(Class.java:355) at java.lang.Class.newInstance(Class.java:30 at com.izforge.izpack.installer.Installer.main(Instal ler.java:62)

У меня та же проблема, он отлично работает на консоли, но когда я использую eclipse, он выдает то же исключение, что я даже помещаю строки этого кода: Process proc_exporting = Runtime.getRuntime (). exec («sudo export DISPLAY =: 0.0») ; все еще не работает

Ни один из ответов не дает информацию, необходимую для решения этой проблемы при удаленном подключении к консоли через PuTTY. Любой ответ, касающийся SSH, на самом деле не объясняет, как заставить его работать. Кто-нибудь знает вопрос, который касается этого?

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No X11 DISPLAY variable was set, but this program performed an operation which requires it #21383

Comments

Summary

i’m using below devfile.yaml . i have specified is a javacontainer and selenium novnc-container

schemaVersion: 2.1.0 metadata: name: cbfsel-repo projects: - name: cbfsel-project git: checkoutFrom: revision: master remotes: origin: https://gitlab.myorganization/repository.git components: - container: image: 'quay.io/devfile/universal-developer-image:ubi8-0e189d9' memoryLimit: 2G endpoints: - exposure: none name: debug protocol: tcp targetPort: 5005 - exposure: public name: 8080-http protocol: http targetPort: 8080 volumeMounts: - name: m2volume path: /home/user/.m2 name: javacontainer - container: image: 'mycustomdockerregistry/standalone-chrome:4.1.2-20220217' memoryLimit: 2G endpoints: - exposure: public name: 4444-tcp protocol: tcp targetPort: 4444 - exposure: public name: 5900-tcp protocol: tcp targetPort: 5900 - exposure: public name: 7900-http protocol: http targetPort: 7900 secure: true volumeMounts: - name: seleniumvolume path: /home/user/.m2 name: seleniumcontainer - name: m2volume volume: size: 2G - name: seleniumvolume volume: size: 2G commands: - exec: commandLine: mvn clean package -DskipTests component: javacontainer group: isDefault: true kind: build label: 'build project using maven' workingDir: '$' id: mvnpackage

The javaprogram in the workspace will make use of the selenium-novnc container to run tests on webpages.
when i execute the javaprogram, the first page of my test appears in the selenium-novnc website, but then it fails with below error(i understand below stacktrace shows some of my classnames, but its fine).

vTAPRegression.moduledrivers.DuckduckgoDriver@41200e0c|Error: Failed in executing component |vTap_duck_Operation| |java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at cbf.engine.BaseModuleDriver.invokeMethod(BaseModuleDriver.java:103) at cbf.engine.BaseModuleDriver.eval(BaseModuleDriver.java:56) at cbf.engine.BaseModuleDriver.perform(BaseModuleDriver.java:50) at cbf.engine.BaseAppDriver.perform(BaseAppDriver.java:61) at cbf.engine.TestCaseRunner.performComponent(TestCaseRunner.java:260) at cbf.engine.TestCaseRunner.access$400(TestCaseRunner.java:41) at cbf.engine.TestCaseRunner$4.run(TestCaseRunner.java:234) at cbf.engine.TestResultTracker.track(TestResultTracker.java:135) at cbf.engine.TestCaseRunner.runComponent(TestCaseRunner.java:229) at cbf.engine.TestCaseRunner$3.run(TestCaseRunner.java:168) at cbf.engine.TestResultTracker.track(TestResultTracker.java:135) at cbf.engine.TestCaseRunner.runStep(TestCaseRunner.java:160) at cbf.engine.TestCaseRunner$2.run(TestCaseRunner.java:139) at cbf.engine.TestResultTracker.track(TestResultTracker.java:135) at cbf.engine.TestCaseRunner.runIteration(TestCaseRunner.java:132) at cbf.engine.TestCaseRunner.access$200(TestCaseRunner.java:41) at cbf.engine.TestCaseRunner$1.run(TestCaseRunner.java:113) at cbf.engine.TestResultTracker.track(TestResultTracker.java:135) at cbf.engine.TestCaseRunner.runTestCase(TestCaseRunner.java:89) at cbf.engine.Engine.runTestCase(Engine.java:48) at cbf.engine.TestSetRunner$4.run(TestSetRunner.java:146) at cbf.engine.TestResultTracker.track(TestResultTracker.java:135) at cbf.engine.TestSetRunner.runTestInstance(TestSetRunner.java:130) at cbf.engine.TestSetRunner$3.run(TestSetRunner.java:107) at cbf.engine.TestResultTracker.track(TestResultTracker.java:135) at cbf.engine.TestSetRunner.runTestsetRerun(TestSetRunner.java:98) at cbf.engine.TestSetRunner$1.run(TestSetRunner.java:65) at cbf.engine.TestResultTracker.track(TestResultTracker.java:135) at cbf.engine.TestSetRunner.runTestSet(TestSetRunner.java:60) at cbf.engine.Engine.runTestSet(Engine.java:42) at cbf.engine.TestSetRunner.runTestSetInstance(TestSetRunner.java:183) at cbf.runner.MainRunner.(MainRunner.java:61) at cbf.runner.MainRunner.main(MainRunner.java:53) Caused by: java.awt.HeadlessException: No X11 DISPLAY variable was set, but this program performed an operation which requires it. at java.desktop/sun.awt.HeadlessToolkit.getScreenSize(HeadlessToolkit.java:186) at cbf.reporting.ScreenDumpManager.dumpScreen(ScreenDumpManager.java:154) at cbf.reporting.ScreenDumpManager.log(ScreenDumpManager.java:122) at cbf.engine.TestResultTracker.log(TestResultTracker.java:177) at cbf.engine.TestResultLogger.log(TestResultLogger.java:159) at cbf.engine.TestResultLogger.passed(TestResultLogger.java:86) at vTAPRegression.moduledrivers.DuckduckgoDriver.vTap_duck_Operation(DuckduckgoDriver.java:42) . 37 more

i noticed this error Caused by: java.awt.HeadlessException: No X11 DISPLAY variable was set, but this program performed an operation which requires it. . i’m not sure how to fix this.