Introduce BasicPropertyDescriptor to KotlinBeanInfoFactory to bypass early property type validation.

Closes #3167

Author: mp911de

src/main/java/org/springframework/data/util/KotlinBeanInfoFactory.java

@@ -40,6 +40,7 @@
 import org.springframework.core.Ordered;
 import org.springframework.lang.Nullable;
 import org.springframework.util.ClassUtils;
+import org.springframework.util.ObjectUtils;
 import org.springframework.util.ReflectionUtils;
 import org.springframework.util.StringUtils;
 
@@ -112,8 +113,13 @@ public BeanInfo getBeanInfo(Class<?> beanClass) throws IntrospectionException {
 
 			for (PropertyDescriptor descriptor : javaPropertyDescriptors) {
 
-				descriptor = new PropertyDescriptor(descriptor.getName(), specialize(beanClass, descriptor.getReadMethod()),
-						specialize(beanClass, descriptor.getWriteMethod()));
+				Method getter = specialize(beanClass, descriptor.getReadMethod());
+				Method setter = specialize(beanClass, descriptor.getWriteMethod());
+
+				if (!ObjectUtils.nullSafeEquals(descriptor.getReadMethod(), getter)
+						|| !ObjectUtils.nullSafeEquals(descriptor.getWriteMethod(), setter)) {
+					descriptor = new BasicPropertyDescriptor(descriptor.getName(), getter, setter);
+				}
 				descriptors.put(descriptor.getName(), descriptor);
 			}
 		}
@@ -148,4 +154,44 @@ public int getOrder() {
 		return LOWEST_PRECEDENCE - 10; // leave some space for customizations.
 	}
 
+	/**
+	 * PropertyDescriptor for {@link KotlinBeanInfoFactory}, not performing any early type determination for
+	 * {@link #setReadMethod}/{@link #setWriteMethod}.
+	 *
+	 * @since 3.3.5
+	 */
+	private static class BasicPropertyDescriptor extends PropertyDescriptor {
+
+		private @Nullable Method readMethod;
+
+		private @Nullable Method writeMethod;
+
+		public BasicPropertyDescriptor(String propertyName, @Nullable Method readMethod, @Nullable Method writeMethod)
+				throws IntrospectionException {
+
+			super(propertyName, readMethod, writeMethod);
+		}
+
+		@Override
+		public void setReadMethod(@Nullable Method readMethod) {
+			this.readMethod = readMethod;
+		}
+
+		@Override
+		@Nullable
+		public Method getReadMethod() {
+			return this.readMethod;
+		}
+
+		@Override
+		public void setWriteMethod(@Nullable Method writeMethod) {
+			this.writeMethod = writeMethod;
+		}
+
+		@Override
+		@Nullable
+		public Method getWriteMethod() {
+			return this.writeMethod;
+		}
+	}
 }

src/test/java/org/springframework/data/util/AbstractAuditable.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2024 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.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.util;
+
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.Date;
+import java.util.Optional;
+
+import org.springframework.lang.Nullable;
+
+public abstract class AbstractAuditable {
+
+	private @Nullable Date createdDate;
+
+	public Optional<LocalDateTime> getCreatedDate() {
+		return null == createdDate ? Optional.empty() : Optional.of(LocalDateTime.now());
+	}
+
+	public void setCreatedDate(LocalDateTime createdDate) {
+		this.createdDate = Date.from(createdDate.atZone(ZoneId.systemDefault()).toInstant());
+	}
+
+}

src/test/kotlin/org/springframework/data/util/KotlinBeanInfoFactoryUnitTests.kt

@@ -130,6 +130,13 @@ class KotlinBeanInfoFactoryUnitTests {
 		)
 	}
 
+	@Test // GH-3167
+	internal fun supportsPropertiesWithDifferentAccessorTypes() {
+
+		val pds = BeanUtils.getPropertyDescriptors(User::class.java)
+		assertThat(pds).isNotEmpty
+	}
+
 	data class SimpleDataClass(val id: String, var name: String)
 
 	@JvmInline
@@ -189,4 +196,8 @@ class KotlinBeanInfoFactoryUnitTests {
 			return super.getName()
 		}
 	}
+
+	class User : AbstractAuditable() {
+		var name: String? = null
+	}
 }