Avoid throwing of plain RuntimeException

spring-test/src/main/java/org/springframework/test/web/servlet/setup/AbstractMockMvcBuilder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2025 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -191,7 +191,7 @@ public abstract class AbstractMockMvcBuilder<B extends AbstractMockMvcBuilder<B>
 					filterDecorator.initIfRequired(servletContext);
 				}
 				catch (ServletException ex) {
-					throw new RuntimeException("Failed to initialize Filter " + filter, ex);
+					throw new IllegalStateException("Failed to initialize Filter " + filter, ex);
 				}
 			}
 		}