[Error] Add another catch for other exceptions

Battleship/src/main/java/com/utclo23/ihmtable/controller/InGameGUIController.java

@@ -17,6 +17,8 @@ import com.utclo23.data.structure.ShipType;
 import com.utclo23.ihmtable.structure.CoordinatesGenerator;
 import com.utclo23.ihmtable.structure.InGameStats;
 import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringWriter;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import java.util.ArrayList;
@@ -40,6 +42,7 @@ import javafx.scene.control.Alert.AlertType;
 import javafx.scene.control.Button;
 import javafx.scene.control.ButtonType;
 import javafx.scene.control.Label;
+import javafx.scene.control.TextArea;
 import javafx.scene.image.ImageView;
 import javafx.scene.input.MouseEvent;
 import javafx.scene.layout.AnchorPane;
@@ -730,6 +733,45 @@ public class InGameGUIController {
         // Display it.
         alert.showAndWait();        
     }
+    
+    /**
+     * Display a popup when there is an unknown error.
+     * @param ex : the exception that occured
+     */
+    private void displayErrorPopup(Exception ex) {
+        // Create the popup.
+        Alert alert = new Alert(AlertType.ERROR);
+        alert.setTitle("Error");
+        alert.setHeaderText("An error occurred");
+        alert.setContentText(ex.getMessage());
+
+        // Create expandable Exception.
+        StringWriter sw = new StringWriter();
+        PrintWriter pw = new PrintWriter(sw);
+        ex.printStackTrace(pw);
+        String exceptionText = sw.toString();
+
+        Label label = new Label("The exception stacktrace was:");
+
+        TextArea textArea = new TextArea(exceptionText);
+        textArea.setEditable(false);
+        textArea.setWrapText(true);
+
+        textArea.setMaxWidth(Double.MAX_VALUE);
+        textArea.setMaxHeight(Double.MAX_VALUE);
+        GridPane.setVgrow(textArea, Priority.ALWAYS);
+        GridPane.setHgrow(textArea, Priority.ALWAYS);
+
+        GridPane expContent = new GridPane();
+        expContent.setMaxWidth(Double.MAX_VALUE);
+        expContent.add(label, 0, 0);
+        expContent.add(textArea, 0, 1);
+
+        // Set expandable Exception into the dialog pane.
+        alert.getDialogPane().setExpandableContent(expContent);
+
+        alert.showAndWait();       
+    }
 
     private class AttackEvent implements EventHandler {
 
@@ -1113,6 +1155,12 @@ public class InGameGUIController {
                                     // Wrong coordinates -> reset.
                                     ship.getListCoord().clear();
                                     
+                                } catch (Exception e) {
+                                    Logger.getLogger(InGameGUIController.class.getName()).log(Level.SEVERE, null, e);
+                                    // Display the error.
+                                    displayErrorPopup(e);
+                                    // Wrong coordinates -> reset.
+                                    ship.getListCoord().clear();
                                 } finally {
                                     // The ship was found, no need to continue the loop.
                                     break;