Fix compilation error

Closes gh-16476

Author: dreis2211

spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/endpoint/web/reactive/AbstractWebFluxEndpointHandlerMapping.java

@@ -22,6 +22,7 @@
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.Map;
+import java.util.Set;
 import java.util.function.Supplier;
 
 import org.reactivestreams.Publisher;
@@ -65,6 +66,7 @@
 import org.springframework.web.reactive.result.method.RequestMappingInfoHandlerMapping;
 import org.springframework.web.server.ResponseStatusException;
 import org.springframework.web.server.ServerWebExchange;
+import org.springframework.web.util.pattern.PathPattern;
 import org.springframework.web.util.pattern.PathPatternParser;
 
 /**
@@ -212,6 +214,11 @@ protected RequestMappingInfo getMappingForMethod(Method method,
 		return null;
 	}
 
+	@Override
+	protected Set<PathPattern> getMappingPathPatterns(RequestMappingInfo mapping) {
+		return mapping.getPatternsCondition().getPatterns();
+	}
+
 	/**
 	 * Return the Handler providing actuator links at the root endpoint.
 	 * @return the links handler