improve IOException handling slightly

VadereSimulator/src/org/vadere/simulator/projects/io/IOOutput.java

@@ -189,7 +189,7 @@ public abstract class IOOutput {
 		try {
 			final Path pathToSnapshot = getPathToOutputFile(project, directory.getName(), IOUtils.SCENARIO_FILE_EXTENSION);
 			return Optional.of(IOVadere.fromJson(IOUtils.readTextFile(pathToSnapshot.toString())));
-		} catch (IOException | VadereClassNotFoundException e) {
+		} catch (IOException | VadereClassNotFoundException | IllegalArgumentException e ) {
 			logger.error("Error in output file " + directory.getName());
 			return Optional.empty();
 		}

VadereSimulator/src/org/vadere/simulator/projects/io/IOVadere.java

@@ -25,7 +25,7 @@ public class IOVadere {
 
 	private static Logger logger = LogManager.getLogger(IOVadere.class);
 
-	public static Scenario fromJson(final String json) throws IOException {
+	public static Scenario fromJson(final String json) throws IOException, IllegalArgumentException {
 		return JsonConverter.deserializeScenarioRunManager(json);
 	}
 

VadereSimulator/src/org/vadere/simulator/projects/io/JsonConverter.java

@@ -19,11 +19,11 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
 
 public class JsonConverter {
 	
-	public static Scenario deserializeScenarioRunManager(String json) throws IOException {
+	public static Scenario deserializeScenarioRunManager(String json) throws IOException, IllegalArgumentException {
 		return deserializeScenarioRunManagerFromNode(StateJsonConverter.readTree(json));
 	}
 	
-	public static Scenario deserializeScenarioRunManagerFromNode(JsonNode node) throws IOException {
+	public static Scenario deserializeScenarioRunManagerFromNode(JsonNode node) throws IOException, IllegalArgumentException {
 		JsonNode rootNode = node;
 		String name = rootNode.get("name").asText();
 		JsonNode scenarioNode = rootNode.get(StateJsonConverter.SCENARIO_KEY);

VadereState/src/org/vadere/state/util/StateJsonConverter.java

@@ -119,7 +119,7 @@ public abstract class StateJsonConverter {
 		return deserializeTopographyFromNode(mapper.readTree(json));
 	}
 
-	public static Topography deserializeTopographyFromNode(JsonNode node) {
+	public static Topography deserializeTopographyFromNode(JsonNode node) throws IllegalArgumentException {
 		TopographyStore store = mapper.convertValue(node, TopographyStore.class);
 		Topography topography = new Topography(store.attributes, store.attributesPedestrian, store.attributesCar);
 		store.obstacles.forEach(obstacle -> topography.addObstacle(new Obstacle(obstacle)));