In "ProjectView", display a more meaningful error message when an exception...

In "ProjectView", display a more meaningful error message when an exception occurs during simulation run.

For this, use the text from the inner (causing) exception instead of the outer exception.

VadereGui/resources/messages.properties

@@ -182,8 +182,8 @@ Wizard.btnFinish.text=Finish
 
 ProjectView.addScenarioDialog.text=New scenario name
 ProjectView.addScenarioDialog.defaultValue=New_scenario
-ProjectView.simulationRunErrorDialog.text=There was an unexpected exception in the scenario run of
-ProjectView.simulationRunErrorDialog.title=Unexpected exception in scenario run
+ProjectView.simulationRunErrorDialog.text=Unexpected error in scenario run
+ProjectView.simulationRunErrorDialog.title=Unexpected error
 ProjectView.testTable.test.text=Scenario
 ProjectView.testTable.state.text=Status
 

VadereGui/resources/messages_de_DE.properties

@@ -184,8 +184,8 @@ Wizard.btnFinish.text=Fertig
 
 ProjectView.addScenarioDialog.text=Name des neuen Szenarios
 ProjectView.addScenarioDialog.defaultValue=Neues_Szenario
-ProjectView.simulationRunErrorDialog.text=Es kam zu einer unerwarteten Ausnahme im Simulationslauf des Szenarios
-ProjectView.simulationRunErrorDialog.title=Unerwartet Ausnahme im Simulationslauf
+ProjectView.simulationRunErrorDialog.text=Unerwarteter Fehler im Simulationslauf
+ProjectView.simulationRunErrorDialog.title=Unerwarteter Fehler
 ProjectView.testTable.test.text=Szenario
 ProjectView.testTable.state.text=Status
 

VadereGui/src/org/vadere/gui/projectview/view/ProjectView.java

@@ -191,8 +191,15 @@ public class ProjectView extends JFrame implements ProjectFinishedListener, Sing
 			replace(scenario, VadereState.INTERRUPTED);
 			new Thread(
 					() -> {
-						IOUtils.errorBox(Messages.getString("ProjectView.simulationRunErrorDialog.text") + " " + scenario
-								+ ": " + throwable, Messages.getString("ProjectView.simulationRunErrorDialog.title"));
+						// Use the causing exception (if available) to get a more meaningful error message.
+						Throwable causingException = (throwable.getCause() == null) ? throwable : throwable.getCause();
+
+						String errorTextTemplate = "%s: %s\n\n%s";
+						String errorText = String.format(errorTextTemplate,
+								Messages.getString("ProjectView.simulationRunErrorDialog.text"),
+								scenario,
+								causingException);
+						IOUtils.errorBox(errorText, Messages.getString("ProjectView.simulationRunErrorDialog.title"));
 					}).start();
 		});
 	}

VadereUtils/src/org/vadere/util/io/IOUtils.java

@@ -278,19 +278,19 @@ public class IOUtils {
 
 	/** Shows an error box with given message and title. */
 	public static void errorBox(String infoMessage, String title) {
-		JOptionPane.showMessageDialog(null, infoMessage, "InfoBox: " + title,
+		JOptionPane.showMessageDialog(null, infoMessage, title,
 				JOptionPane.ERROR_MESSAGE);
 	}
 
 	/** Shows an warn box with given message and title. */
 	public static void warnBox(String infoMessage, String title) {
-		JOptionPane.showMessageDialog(null, infoMessage, "InfoBox: " + title,
+		JOptionPane.showMessageDialog(null, infoMessage, title,
 				JOptionPane.WARNING_MESSAGE);
 	}
 
 	/** Shows an info box with given message and title. */
 	public static void infoBox(String infoMessage, String title) {
-		JOptionPane.showMessageDialog(null, infoMessage, "InfoBox: " + title,
+		JOptionPane.showMessageDialog(null, infoMessage, title,
 				JOptionPane.INFORMATION_MESSAGE);
 	}