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Unhandled Eventloop Exception (MacOS 14.3.1)

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#975 4 commentaires 0 réactions 0 personnes assignées Voir sur GitHub

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Évaluation

Difficulté
4/5
Temps estimé
3-5 jours
Accessibilité débutants
30/100
Type d'issue
Bug
Clarté
Plutôt claire
Activité
À l'abandon
Stack technique
java
Domaine
desktop, devtools

Piste de recherche

Reproduisez l’échec en ouvrant l’onglet WindowBuilder Design de la fenêtre Choordinates, puis inspectez FretPanel.java à la ligne 273 et comparez le comportement avant et après le commit lié. Suivez la valeur null signalée par la stack trace de drawString et déterminez pourquoi le nouveau constructeur ToneChord la déclenche. C’est terminé lorsque l’onglet de conception s’affiche sans l’exception non gérée.

Rédigé par le modèle d'indexation à partir du texte de l'issue.

Description

Windowbuilder was working with this window until the last batch of changes I made to it. I get no warnings or compile errors in my project, the Windowbuilder Design tap just show up empty.

My project is opensource and after doing some digging, the error appears in this (small) commit:
https://github.com/obscurestar/choordinates/commit/10c3ec90987c35c822aa5a1f17a3f8c548a0cc9e#diff-24bc5d99104ec827f095ecd47ae668ae04b178c150fd5750a9c31aa8502f89e9L136

and appears to be related to the creation of a new public constructor in the unrelated 'ToneChord' class. (Even with the removal of 'foo' object)

Below is the stack trace from the General Error log stack trace when I click the design tab for the 'Choordinates' window in my project.

java.lang.NullPointerException: String is null
at java.desktop/sun.java2d.SunGraphics2D.drawString(SunGraphics2D.java:2925)
at choordinates.FretPanel.paintComponent(FretPanel.java:273)
at java.desktop/javax.swing.JComponent.printComponent(JComponent.java:1292)
at java.desktop/javax.swing.JComponent.paint(JComponent.java:1132)
at java.desktop/javax.swing.JComponent.print(JComponent.java:1274)
at java.desktop/javax.swing.JComponent.paintChildren(JComponent.java:965)
at java.desktop/javax.swing.JComponent.printChildren(JComponent.java:1305)
at java.desktop/javax.swing.JComponent.paint(JComponent.java:1140)
at java.desktop/javax.swing.JComponent.print(JComponent.java:1274)
at java.desktop/javax.swing.JComponent.paintChildren(JComponent.java:965)
at java.desktop/javax.swing.JComponent.printChildren(JComponent.java:1305)
at java.desktop/javax.swing.JComponent.paint(JComponent.java:1140)
at java.desktop/javax.swing.JLayeredPane.paint(JLayeredPane.java:586)
at java.desktop/javax.swing.JComponent.print(JComponent.java:1274)
at java.desktop/javax.swing.JComponent.paintChildren(JComponent.java:965)
at java.desktop/javax.swing.JComponent.printChildren(JComponent.java:1305)
at java.desktop/javax.swing.JComponent.paint(JComponent.java:1140)
at java.desktop/javax.swing.JComponent.print(JComponent.java:1274)
at java.desktop/java.awt.GraphicsCallback$PrintCallback.run(GraphicsCallback.java:50)
at java.desktop/sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:75)
at java.desktop/sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:112)
at java.desktop/java.awt.Container.print(Container.java:2060)
at java.desktop/sun.lwawt.LWComponentPeer.print(LWComponentPeer.java:807)
at java.desktop/sun.lwawt.LWContainerPeer.print(LWContainerPeer.java:276)
at java.desktop/java.awt.GraphicsCallback$PeerPrintCallback.run(GraphicsCallback.java:103)
at java.desktop/sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:75)
at java.desktop/java.awt.Component.printAll(Component.java:3534)
at org.eclipse.wb.internal.swing.utils.SwingScreenshotMaker.makeShots(SwingScreenshotMaker.java:146)
at org.eclipse.wb.internal.swing.model.component.ComponentInfo.refresh_fetch(ComponentInfo.java:156)
at org.eclipse.wb.internal.swing.model.component.ComponentInfo.refresh_fetch(ComponentInfo.java:140)
at org.eclipse.wb.internal.swing.model.component.ContainerInfo.refresh_fetch(ContainerInfo.java:258)
at org.eclipse.wb.core.model.ObjectInfo.lambda$6(ObjectInfo.java:481)
at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.runDesignTime(ExecutionUtils.java:147)
at org.eclipse.wb.core.model.ObjectInfo.lambda$5(ObjectInfo.java:480)
at org.eclipse.wb.internal.swing.utils.SwingUtils$2.run(SwingUtils.java:78)
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)

Langage dominant
Java
Étoiles
97
Forks
34
Merge moyen
21 h 21 min
PR mergées (30 j)
39

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