java.lang.NullPointerException: Failed to download map listing from: http://raw.githubusercontent.com/triplea-maps/Project/master/production_config/triplea_maps.yaml?raw=true

GitHub | panther2 | 6 months ago
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    java.lang.NullPointerException: Failed to download map listing from: http://raw.githubusercontent.com/triplea-maps/Project/master/production_config/triplea_maps.yaml?raw=true
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Root Cause Analysis

  1. java.lang.NullPointerException

    Failed to download map listing from: http://raw.githubusercontent.com/triplea-maps/Project/master/production_config/triplea_maps.yaml?raw=true

    at com.google.common.base.Preconditions.checkNotNull()
  2. Guava
    Preconditions.checkNotNull
    1. com.google.common.base.Preconditions.checkNotNull(Preconditions.java:228)
    1 frame
  3. games.strategy.engine
    GameSelectorPanel.lambda$layoutComponents$166
    1. games.strategy.engine.framework.map.download.DownloadMapsWindow.showDownloadMapsWindow(DownloadMapsWindow.java:81)
    2. games.strategy.engine.framework.map.download.DownloadMapsWindow.showDownloadMapsWindow(DownloadMapsWindow.java:72)
    3. games.strategy.engine.framework.startup.ui.GameSelectorPanel.lambda$layoutComponents$166(GameSelectorPanel.java:180)
    3 frames
  4. games.strategy.ui
    SwingAction$2.actionPerformed
    1. games.strategy.ui.SwingComponents.lambda$newJButton$550(SwingComponents.java:165)
    2. games.strategy.ui.SwingAction$2.actionPerformed(SwingAction.java:53)
    2 frames
  5. Java RT
    BasicButtonListener.mouseReleased
    1. javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
    2. javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
    3. javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
    4. javax.swing.DefaultButtonModel.setPressed(Unknown Source)
    5. javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
    5 frames
  6. org.pushingpixels.substance
    RolloverButtonListener.mouseReleased
    1. org.pushingpixels.substance.internal.utils.RolloverButtonListener.mouseReleased(RolloverButtonListener.java:124)
    1 frame
  7. Java RT
    EventQueue.dispatchEvent
    1. java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
    2. java.awt.Component.processMouseEvent(Unknown Source)
    3. javax.swing.JComponent.processMouseEvent(Unknown Source)
    4. java.awt.Component.processEvent(Unknown Source)
    5. java.awt.Container.processEvent(Unknown Source)
    6. java.awt.Component.dispatchEventImpl(Unknown Source)
    7. java.awt.Container.dispatchEventImpl(Unknown Source)
    8. java.awt.Component.dispatchEvent(Unknown Source)
    9. java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
    10. java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
    11. java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
    12. java.awt.Container.dispatchEventImpl(Unknown Source)
    13. java.awt.Window.dispatchEventImpl(Unknown Source)
    14. java.awt.Component.dispatchEvent(Unknown Source)
    15. java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    16. java.awt.EventQueue.access$500(Unknown Source)
    17. java.awt.EventQueue$3.run(Unknown Source)
    18. java.awt.EventQueue$3.run(Unknown Source)
    19. java.security.AccessController.doPrivileged(Native Method)
    20. java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    21. java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    22. java.awt.EventQueue$4.run(Unknown Source)
    23. java.awt.EventQueue$4.run(Unknown Source)
    24. java.security.AccessController.doPrivileged(Native Method)
    25. java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    26. java.awt.EventQueue.dispatchEvent(Unknown Source)
    26 frames
  8. games.strategy.engine
    GameRunner$1.dispatchEvent
    1. games.strategy.engine.framework.GameRunner$1.dispatchEvent(GameRunner.java:156)
    1 frame
  9. Java RT
    EventDispatchThread.run
    1. java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    2. java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    3. java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    4. java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    5. java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    6. java.awt.EventDispatchThread.run(Unknown Source)
    6 frames