[client] Print error message if no LookAndFeel can be loaded

1 files changed, 6 insertions, 2 deletions

diff --git a/dozentenmodul/src/main/java/org/openslx/dozmod/App.java b/dozentenmodul/src/main/java/org/openslx/dozmod/App.java
index 50c2add1..a6f4b580 100755
--- a/dozentenmodul/src/main/java/org/openslx/dozmod/App.java
+++ b/dozentenmodul/src/main/java/org/openslx/dozmod/App.java
@@ -200,7 +200,7 @@ public class App {
 				UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
 				Config.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
 			}
-		} catch (Exception e1) {
+		} catch (Throwable e1) {
 			try {
 				LOGGER.error("Something went wrong with the chosen 'LookAndFeel'. Falling back to default 'SystemLookAndFeel'");
 				UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
@@ -208,7 +208,11 @@ public class App {
 				if(Config.getLookAndFeel() == null) {
 					Config.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
 				}
-			} catch (Exception e) {
+			} catch (Throwable e) {
+				LOGGER.error("Cannot select system look and feel", e);
+				LOGGER.error("----------------------------------");
+				LOGGER.error("Cannot initialize GUI. Make sure you have the non-headless version of Java installed.");
+				System.exit(1);
 			}
 		}