Attempt properties binding after constructor

Prior to this commit, the `GraphQlArgumentBinder` would choose between
two strategies:
* if there is a constructor with arguments, instantiate the target and
  bind it using the constructor
* otherwise, use the default constructor and use bean properties binding

This commit extends the first case and attempts to further bind bean
properties after constructor instantiation.

Closes gh-1163

spring-graphql/src/main/java/org/springframework/graphql/data/GraphQlArgumentBinder.java

@@ -292,7 +292,12 @@ public class GraphQlArgumentBinder {
 		}
 
 		try {
-			return BeanUtils.instantiateClass(constructor, constructorArguments);
+			Object target = BeanUtils.instantiateClass(constructor, constructorArguments);
+			// only attempt further properties binding if there were no errors
+			if (!bindingResult.hasErrors()) {
+				bindProperties(rawMap, ownerType, bindingResult, target);
+			}
+			return target;
 		}
 		catch (BeanInstantiationException ex) {
 			// Ignore, if we had binding errors to begin with
@@ -308,6 +313,11 @@ public class GraphQlArgumentBinder {
 			ArgumentsBindingResult bindingResult) {
 
 		Object target = BeanUtils.instantiateClass(constructor);
+		bindProperties(rawMap, ownerType, bindingResult, target);
+		return target;
+	}
+
+	private void bindProperties(Map<String, Object> rawMap, ResolvableType ownerType, ArgumentsBindingResult bindingResult, Object target) {
 		BeanWrapper beanWrapper = (this.fallBackOnDirectFieldAccess ?
 				new DirectFieldAccessFallbackBeanWrapper(target) : PropertyAccessorFactory.forBeanPropertyAccess(target));
 
@@ -343,10 +353,9 @@ public class GraphQlArgumentBinder {
 				bindingResult.rejectArgumentValue(key, value, "invalidPropertyValue", "Failed to set property value");
 			}
 		}
-
-		return target;
 	}
 
+
 	@SuppressWarnings("unchecked")
 	@Nullable
 	private <T> T convertValue(

spring-graphql/src/test/java/org/springframework/graphql/data/GraphQlArgumentBinderTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020-2023 the original author or authors.
+ * Copyright 2020-2025 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.
@@ -195,6 +195,16 @@ class GraphQlArgumentBinderTests {
 		assertThat(result).hasFieldOrPropertyWithValue("name", "test");
 	}
 
+	@Test
+	void mixedConstructorProperties() throws Exception {
+
+		Object result = bind("{\"name\":\"test\", \"age\":30}", ResolvableType.forClass(MixedConstructorPropertiesBean.class));
+
+		assertThat(result).isNotNull().isInstanceOf(MixedConstructorPropertiesBean.class);
+		assertThat(result).hasFieldOrPropertyWithValue("name", "test")
+				.hasFieldOrPropertyWithValue("age", 30);
+	}
+
 	@Test
 	void primaryConstructorWithBeanArgument() throws Exception {
 
@@ -457,6 +467,29 @@ class GraphQlArgumentBinderTests {
 		}
 	}
 
+	static class MixedConstructorPropertiesBean {
+
+		private final String name;
+
+		private int age;
+
+		public MixedConstructorPropertiesBean(String name) {
+			this.name = name;
+		}
+
+		public String getName() {
+			return this.name;
+		}
+
+		public int getAge() {
+			return this.age;
+		}
+
+		public void setAge(int age) {
+			this.age = age;
+		}
+	}
+
 
 	static class PrimaryConstructorItemBean {