java.lang.IllegalStateException: Not on FX application thread; currentThread = main

Google Groups | Ryan Gilera | 2 years ago
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    Google Groups | 2 years ago | Ryan Gilera
    java.lang.IllegalStateException: Not on FX application thread; currentThread = main
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    Stack Overflow | 2 years ago | user3487276
    java.lang.IllegalStateException: Not on FX application thread; currentThread = Thread-4
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    Stack Overflow | 2 years ago
    java.lang.IllegalStateException: Not on FX application thread; currentThread = Thread-4
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    Root Cause Analysis

    1. java.lang.IllegalStateException

      Not on FX application thread; currentThread = main

      at com.sun.javafx.tk.Toolkit.checkFxUserThread()
    2. com.sun.javafx
      QuantumToolkit.checkFxUserThread
      1. com.sun.javafx.tk.Toolkit.checkFxUserThread(Toolkit.java:204)
      2. com.sun.javafx.tk.quantum.QuantumToolkit.checkFxUserThread(QuantumToolkit.java:364)
      2 frames
    3. javafx.scene
      Node.snapshot
      1. javafx.scene.Node.snapshot(Node.java:1903)
      1 frame
    4. com.github.daytron
      UITest.generateMapThenSaveThenOpenTest
      1. com.github.daytron.flipit.map.creator.model.MapManager.saveFile(MapManager.java:86)
      2. com.github.daytron.flipit.map.creator.controller.ViewController.saveMap(ViewController.java:1046)
      3. com.github.daytron.flipit.map.creator.UITest.generateMapThenSaveThenOpenTest(UITest.java:506)
      3 frames