Update HttpMethodArgumentResolver

Boolean return value indicates if the value was resolved or not.

See gh-28386

Author: rstoyanchev

spring-web/src/main/java/org/springframework/web/service/invoker/HttpMethodArgumentResolver.java

@@ -37,18 +37,18 @@ public class HttpMethodArgumentResolver implements HttpServiceArgumentResolver {
 
 
 	@Override
-	public void resolve(
+	public boolean resolve(
 			@Nullable Object argument, MethodParameter parameter, HttpRequestValues.Builder requestValues) {
 
-		if (argument == null) {
-			return;
-		}
 		if (argument instanceof HttpMethod httpMethod) {
 			if (logger.isTraceEnabled()) {
 				logger.trace("Resolved HTTP method to: " + httpMethod.name());
 			}
 			requestValues.setHttpMethod(httpMethod);
+			return true;
 		}
+
+		return false;
 	}
 
 }

spring-web/src/main/java/org/springframework/web/service/invoker/HttpServiceArgumentResolver.java

@@ -35,7 +35,8 @@ public interface HttpServiceArgumentResolver {
 	 * @param argument the argument value
 	 * @param parameter the method parameter for the argument
 	 * @param requestValues builder to add HTTP request values to
+	 * @return {@code true} if the argument was resolved, {@code false} otherwise
 	 */
-	void resolve(@Nullable Object argument, MethodParameter parameter, HttpRequestValues.Builder requestValues);
+	boolean resolve(@Nullable Object argument, MethodParameter parameter, HttpRequestValues.Builder requestValues);
 
 }

spring-web/src/main/java/org/springframework/web/service/invoker/HttpServiceMethod.java

@@ -30,7 +30,6 @@
 
 import org.springframework.core.DefaultParameterNameDiscoverer;
 import org.springframework.core.MethodParameter;
-import org.springframework.core.ParameterNameDiscoverer;
 import org.springframework.core.ParameterizedTypeReference;
 import org.springframework.core.ReactiveAdapter;
 import org.springframework.core.ReactiveAdapterRegistry;
@@ -81,9 +80,14 @@ final class HttpServiceMethod {
 
 	private static MethodParameter[] initMethodParameters(Method method) {
 		int count = method.getParameterCount();
+		if (count == 0) {
+			return new MethodParameter[0];
+		}
+		DefaultParameterNameDiscoverer nameDiscoverer = new DefaultParameterNameDiscoverer();
 		MethodParameter[] parameters = new MethodParameter[count];
 		for (int i = 0; i < count; i++) {
 			parameters[i] = new MethodParameter(method, i);
+			parameters[i].initParameterNameDiscovery(nameDiscoverer);
 		}
 		return parameters;
 	}
@@ -103,12 +107,12 @@ public Object invoke(Object[] arguments) {
 
 	private void applyArguments(HttpRequestValues.Builder requestValues, Object[] arguments) {
 		Assert.isTrue(arguments.length == this.parameters.length, "Method argument mismatch");
-		for (int i = 0; i < this.parameters.length; i++) {
-			Object argumentValue = arguments[i];
-			ParameterNameDiscoverer nameDiscoverer = new DefaultParameterNameDiscoverer();
-			this.parameters[i].initParameterNameDiscovery(nameDiscoverer);
+		for (int i = 0; i < arguments.length; i++) {
+			Object value = arguments[i];
 			for (HttpServiceArgumentResolver resolver : this.argumentResolvers) {
-				resolver.resolve(argumentValue, this.parameters[i], requestValues);
+				if (resolver.resolve(value, this.parameters[i], requestValues)) {
+					break;
+				}
 			}
 		}
 	}

spring-web/src/main/java/org/springframework/web/service/invoker/PathVariableArgumentResolver.java

@@ -55,12 +55,12 @@ public PathVariableArgumentResolver(ConversionService conversionService) {
 
 	@SuppressWarnings("unchecked")
 	@Override
-	public void resolve(
+	public boolean resolve(
 			@Nullable Object argument, MethodParameter parameter, HttpRequestValues.Builder requestValues) {
 
 		PathVariable annotation = parameter.getParameterAnnotation(PathVariable.class);
 		if (annotation == null) {
-			return;
+			return false;
 		}
 
 		if (Map.class.isAssignableFrom(parameter.getParameterType())) {
@@ -76,6 +76,8 @@ public void resolve(
 			Assert.notNull(name, "Failed to determine path variable name for parameter: " + parameter);
 			addUriParameter(name, argument, annotation.required(), requestValues);
 		}
+
+		return true;
 	}
 
 	private void addUriParameter(