Fixed possible NullPointer

Author: CDerksen

eclipseProjects/org.agentgui/bundles/org.agentgui.core/src/agentgui/simulationService/time/TimeModelDateBased.java

@@ -120,7 +120,7 @@ public ZoneId getZoneId() {
 	 * @param newZoneId the new zone id
 	 */
 	public void setZoneId(ZoneId newZoneId) {
-		if (newZoneId.equals(ZoneId.systemDefault())==true) {
+		if (newZoneId!=null && newZoneId.equals(ZoneId.systemDefault())==true) {
 			this.zoneId = null;
 		} else {
 			this.zoneId = newZoneId;

eclipseProjects/org.agentgui/bundles/org.awb.env.networkModel/doc/uml/GraphUIMessage.png

@@ -40,7 +40,7 @@
  */
 public class UIMessagingController {
 
-	private boolean debug = true;
+	private boolean debug = false;
 
 	private GraphEnvironmentController graphController;
 	private MessagingJInternalFrame messagingFrame;