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tankangliang / pe

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NullPointerException when clicking flash cards #2

Open tankangliang opened 3 years ago

tankangliang commented 3 years ago

The following is obtained in the console when quiz topics are clicked

Exception in thread "JavaFX Application Thread" java.lang.NullPointerException
        at com.sun.javafx.scene.control.behavior.ListViewBehavior.mousePressed(ListViewBehavior.java:358)
        at com.sun.javafx.scene.control.inputmap.InputMap.handle(InputMap.java:274)
        at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
        at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
        at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
        at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
        at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
        at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
        at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
        at javafx.event.Event.fireEvent(Event.java:198)
        at javafx.scene.Scene$MouseHandler.process(Scene.java:3851)
        at javafx.scene.Scene$MouseHandler.access$1200(Scene.java:3579)
        at javafx.scene.Scene.processMouseEvent(Scene.java:1849)
        at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2588)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:397)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$2(GlassViewEventHandler.java:434)
        at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:390)
        at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:433)
        at com.sun.glass.ui.View.handleMouseEvent(View.java:556)
        at com.sun.glass.ui.View.notifyMouse(View.java:942)
        at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
        at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
        at java.base/java.lang.Thread.run(Thread.java:834)

Steps to reproduce:

  1. Go to "QUIZ"
  2. Click as shown in picture

image.png

Clicking will obtain the following in logs

image.png

nus-pe-bot commented 3 years ago

Team's Response

Thanks for the report. We changed the severity to VeryLow because it does not affect the user experience of the app and only shows on the command line.

Items for the Tester to Verify

:question: Issue severity

Team chose [severity.VeryLow] Originally [severity.Medium]

Reason for disagreement: [replace this with your explanation]