Fix NullPointerException on IDE startup in NotificationPopup

app/src/cc/arduino/contributions/ContributionsSelfCheck.java

@@ -125,6 +125,9 @@ public void run() {
 
     SwingUtilities.invokeLater(() -> {
       Editor ed = base.getActiveEditor();
+      if (ed == null) {
+        return;
+      }
       boolean accessibleIde = PreferencesData.getBoolean("ide.accessible");
       if (accessibleIde) {
         notificationPopup = new NotificationPopup(ed, hyperlinkListener, text, false, this, button1Name, button2Name);

app/src/cc/arduino/view/NotificationPopup.java

@@ -220,27 +220,32 @@ public void mouseClicked(MouseEvent e) {
     pack();
 
     updateLocation(parent);
-    ComponentAdapter parentMovedListener = new ComponentAdapter() {
-      @Override
-      public void componentMoved(ComponentEvent e) {
-        updateLocation(parent);
-      }
+    if (parent != null) {
+      ComponentAdapter parentMovedListener = new ComponentAdapter() {
+        @Override
+        public void componentMoved(ComponentEvent e) {
+          updateLocation(parent);
+        }
 
-      @Override
-      public void componentResized(ComponentEvent e) {
-        updateLocation(parent);
-      }
-    };
-    parent.addComponentListener(parentMovedListener);
-    addWindowListener(new WindowAdapter() {
-      @Override
-      public void windowClosed(WindowEvent e) {
-        parent.removeComponentListener(parentMovedListener);
-      }
-    });
+        @Override
+        public void componentResized(ComponentEvent e) {
+          updateLocation(parent);
+        }
+      };
+      parent.addComponentListener(parentMovedListener);
+      addWindowListener(new WindowAdapter() {
+        @Override
+        public void windowClosed(WindowEvent e) {
+          parent.removeComponentListener(parentMovedListener);
+        }
+      });
+    }
   }
 
   private void updateLocation(Frame parent) {
+    if (parent == null) {
+      return;
+    }
     Point parentLocation = parent.getLocation();
 
     int parentX = Double.valueOf(parentLocation.getX()).intValue();

app/src/processing/app/NewBoardListener.java

@@ -73,9 +73,11 @@ public void checkForNewBoardAttached() {
     }
 
     SwingUtilities.invokeLater(() -> {
-
       ed = base.getActiveEditor();
-      NotificationPopup notificationPopup = new NotificationPopup(ed, 
+      if (ed == null) {
+        return;
+      }
+      NotificationPopup notificationPopup = new NotificationPopup(ed,
                  new UpdatableBoardsLibsFakeURLsHandler(base), 
                  newBoardManagerLink, false);
       if (ed.isFocused()) {