Improve exception handling when application fails to start

Prevent the usage of the logger when the application has not started
regardless of the cause since it's most likely not configured yet.

Closes quarkusio#42084

core/runtime/src/main/java/io/quarkus/runtime/ApplicationLifecycleManager.java

@@ -24,11 +24,8 @@
 
 import io.quarkus.bootstrap.logging.InitialConfigurator;
 import io.quarkus.bootstrap.runner.RunnerClassLoader;
-import io.quarkus.runtime.configuration.ConfigurationException;
 import io.quarkus.runtime.graal.DiagnosticPrinter;
 import io.quarkus.runtime.util.ExceptionUtil;
-import io.quarkus.runtime.util.StringUtil;
-import io.smallrye.config.ConfigValidationException;
 import sun.misc.Signal;
 import sun.misc.SignalHandler;
 
@@ -188,11 +185,9 @@ public static void run(Application application, Class<? extends QuarkusApplicati
                         }
                         applicationLogger.warn("You can try to kill it with 'kill -9 <pid>'.");
                     }
-                } else if (rootCause instanceof ConfigurationException || rootCause instanceof ConfigValidationException) {
-                    System.err.println(rootCause.getMessage());
-                } else if (rootCause instanceof PreventFurtherStepsException
-                        && !StringUtil.isNullOrEmpty(rootCause.getMessage())) {
-                    System.err.println(rootCause.getMessage());
+                } else if (!currentApplication.isStarted()) {
+                    System.err.println("Failed to start application");
+                    e.printStackTrace();
                 } else {
                     applicationLogger.errorv(e, "Failed to start application");
                     ensureConsoleLogsDrained();