GH-2422 - Move to shared instance of DefaultParameterNameDiscoverer.

Author: odrotbohm

src/main/java/org/springframework/hateoas/server/core/MethodParameters.java

@@ -42,7 +42,7 @@
  */
 public class MethodParameters {
 
-	private static ParameterNameDiscoverer DISCOVERER = new DefaultParameterNameDiscoverer();
+	private static ParameterNameDiscoverer DISCOVERER = DefaultParameterNameDiscoverer.getSharedInstance();
 	private static final Map<Method, MethodParameters> CACHE = new ConcurrentReferenceHashMap<>();
 
 	private final List<MethodParameter> parameters;