Merge branch '6.1.x'

# Conflicts:
#	spring-beans/src/main/java/org/springframework/beans/factory/aot/DefaultBeanRegistrationCodeFragments.java

framework-docs/modules/ROOT/pages/data-access/jdbc/advanced.adoc

@@ -211,19 +211,28 @@ the JDBC driver. If the count is not available, the JDBC driver returns a value
 ====
 In such a scenario, with automatic setting of values on an underlying `PreparedStatement`,
 the corresponding JDBC type for each value needs to be derived from the given Java type.
-While this usually works well, there is a potential for issues (for example, with Map-contained
-`null` values). Spring, by default, calls `ParameterMetaData.getParameterType` in such a
-case, which can be expensive with your JDBC driver. You should use a recent driver
+While this usually works well, there is a potential for issues (for example, with
+Map-contained `null` values). Spring, by default, calls `ParameterMetaData.getParameterType`
+in such a case, which can be expensive with your JDBC driver. You should use a recent driver
 version and consider setting the `spring.jdbc.getParameterType.ignore` property to `true`
 (as a JVM system property or via the
-xref:appendix.adoc#appendix-spring-properties[`SpringProperties`] mechanism) if you encounter
-a performance issue (as reported on Oracle 12c, JBoss, and PostgreSQL).
-
-Alternatively, you might consider specifying the corresponding JDBC types explicitly,
-either through a `BatchPreparedStatementSetter` (as shown earlier), through an explicit type
-array given to a `List<Object[]>` based call, through `registerSqlType` calls on a
-custom `MapSqlParameterSource` instance, or through a `BeanPropertySqlParameterSource`
-that derives the SQL type from the Java-declared property type even for a null value.
+xref:appendix.adoc#appendix-spring-properties[`SpringProperties`] mechanism)
+if you encounter a specific performance issue for your application.
+
+As of 6.1.2, Spring bypasses the default `getParameterType` resolution on PostgreSQL and
+MS SQL Server. This is a common optimization to avoid further roundtrips to the DBMS just
+for parameter type resolution which is known to make a very significant difference on
+PostgreSQL and MS SQL Server specifically, in particular for batch operations. If you
+happen to see a side effect e.g. when setting a byte array to null without specific type
+indication, you may explicitly set the `spring.jdbc.getParameterType.ignore=false` flag
+as a system property (see above) to restore full `getParameterType` resolution.
+
+Alternatively, you could consider specifying the corresponding JDBC types explicitly,
+either through a `BatchPreparedStatementSetter` (as shown earlier), through an explicit
+type array given to a `List<Object[]>` based call, through `registerSqlType` calls on a
+custom `MapSqlParameterSource` instance, through a `BeanPropertySqlParameterSource`
+that derives the SQL type from the Java-declared property type even for a null value, or
+through providing individual `SqlParameterValue` instances instead of plain null values.
 ====
 
 

spring-aop/src/main/java/org/springframework/aop/scope/ScopedProxyBeanRegistrationAotProcessor.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -80,8 +80,8 @@ class ScopedProxyBeanRegistrationAotProcessor implements BeanRegistrationAotProc
 	}
 
 	@Nullable
-	private BeanDefinition getTargetBeanDefinition(ConfigurableBeanFactory beanFactory,
-			@Nullable String targetBeanName) {
+	private BeanDefinition getTargetBeanDefinition(
+			ConfigurableBeanFactory beanFactory, @Nullable String targetBeanName) {
 
 		if (targetBeanName != null && beanFactory.containsBean(targetBeanName)) {
 			return beanFactory.getMergedBeanDefinition(targetBeanName);
@@ -124,16 +124,12 @@ class ScopedProxyBeanRegistrationAotProcessor implements BeanRegistrationAotProc
 
 		@Override
 		public CodeBlock generateSetBeanDefinitionPropertiesCode(
-				GenerationContext generationContext,
-				BeanRegistrationCode beanRegistrationCode,
+				GenerationContext generationContext, BeanRegistrationCode beanRegistrationCode,
 				RootBeanDefinition beanDefinition, Predicate<String> attributeFilter) {
 
-			RootBeanDefinition processedBeanDefinition = new RootBeanDefinition(
-					beanDefinition);
-			processedBeanDefinition
-					.setTargetType(this.targetBeanDefinition.getResolvableType());
-			processedBeanDefinition.getPropertyValues()
-					.removePropertyValue("targetBeanName");
+			RootBeanDefinition processedBeanDefinition = new RootBeanDefinition(beanDefinition);
+			processedBeanDefinition.setTargetType(this.targetBeanDefinition.getResolvableType());
+			processedBeanDefinition.getPropertyValues().removePropertyValue("targetBeanName");
 			return super.generateSetBeanDefinitionPropertiesCode(generationContext,
 					beanRegistrationCode, processedBeanDefinition, attributeFilter);
 		}
@@ -144,20 +140,15 @@ class ScopedProxyBeanRegistrationAotProcessor implements BeanRegistrationAotProc
 
 			GeneratedMethod generatedMethod = beanRegistrationCode.getMethods()
 					.add("getScopedProxyInstance", method -> {
-						method.addJavadoc(
-								"Create the scoped proxy bean instance for '$L'.",
+						method.addJavadoc("Create the scoped proxy bean instance for '$L'.",
 								this.registeredBean.getBeanName());
 						method.addModifiers(Modifier.PRIVATE, Modifier.STATIC);
 						method.returns(ScopedProxyFactoryBean.class);
-						method.addParameter(RegisteredBean.class,
-								REGISTERED_BEAN_PARAMETER_NAME);
+						method.addParameter(RegisteredBean.class, REGISTERED_BEAN_PARAMETER_NAME);
 						method.addStatement("$T factory = new $T()",
-								ScopedProxyFactoryBean.class,
-								ScopedProxyFactoryBean.class);
-						method.addStatement("factory.setTargetBeanName($S)",
-								this.targetBeanName);
-						method.addStatement(
-								"factory.setBeanFactory($L.getBeanFactory())",
+								ScopedProxyFactoryBean.class, ScopedProxyFactoryBean.class);
+						method.addStatement("factory.setTargetBeanName($S)", this.targetBeanName);
+						method.addStatement("factory.setBeanFactory($L.getBeanFactory())",
 								REGISTERED_BEAN_PARAMETER_NAME);
 						method.addStatement("return factory");
 					});

spring-beans/src/main/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessor.java

@@ -1098,7 +1098,6 @@ public class AutowiredAnnotationBeanPostProcessor implements SmartInstantiationA
 				}
 			}
 		}
-
 	}
 
 }

spring-beans/src/main/java/org/springframework/beans/factory/aot/BeanRegistrationCodeFragmentsDecorator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -58,39 +58,39 @@ public class BeanRegistrationCodeFragmentsDecorator implements BeanRegistrationC
 	public CodeBlock generateNewBeanDefinitionCode(GenerationContext generationContext,
 			ResolvableType beanType, BeanRegistrationCode beanRegistrationCode) {
 
-		return this.delegate.generateNewBeanDefinitionCode(generationContext,
-				beanType, beanRegistrationCode);
+		return this.delegate.generateNewBeanDefinitionCode(generationContext, beanType, beanRegistrationCode);
 	}
 
 	@Override
-	public CodeBlock generateSetBeanDefinitionPropertiesCode(GenerationContext generationContext,
-			BeanRegistrationCode beanRegistrationCode, RootBeanDefinition beanDefinition,
-			Predicate<String> attributeFilter) {
+	public CodeBlock generateSetBeanDefinitionPropertiesCode(
+			GenerationContext generationContext, BeanRegistrationCode beanRegistrationCode,
+			RootBeanDefinition beanDefinition, Predicate<String> attributeFilter) {
 
 		return this.delegate.generateSetBeanDefinitionPropertiesCode(
 				generationContext, beanRegistrationCode, beanDefinition, attributeFilter);
 	}
 
 	@Override
-	public CodeBlock generateSetBeanInstanceSupplierCode(GenerationContext generationContext,
-			BeanRegistrationCode beanRegistrationCode, CodeBlock instanceSupplierCode,
-			List<MethodReference> postProcessors) {
+	public CodeBlock generateSetBeanInstanceSupplierCode(
+			GenerationContext generationContext, BeanRegistrationCode beanRegistrationCode,
+			CodeBlock instanceSupplierCode, List<MethodReference> postProcessors) {
 
 		return this.delegate.generateSetBeanInstanceSupplierCode(generationContext,
 				beanRegistrationCode, instanceSupplierCode, postProcessors);
 	}
 
 	@Override
-	public CodeBlock generateInstanceSupplierCode(GenerationContext generationContext,
-			BeanRegistrationCode beanRegistrationCode, boolean allowDirectSupplierShortcut) {
+	public CodeBlock generateInstanceSupplierCode(
+			GenerationContext generationContext, BeanRegistrationCode beanRegistrationCode,
+			boolean allowDirectSupplierShortcut) {
 
 		return this.delegate.generateInstanceSupplierCode(generationContext,
 				beanRegistrationCode, allowDirectSupplierShortcut);
 	}
 
 	@Override
-	public CodeBlock generateReturnCode(GenerationContext generationContext,
-			BeanRegistrationCode beanRegistrationCode) {
+	public CodeBlock generateReturnCode(
+			GenerationContext generationContext, BeanRegistrationCode beanRegistrationCode) {
 
 		return this.delegate.generateReturnCode(generationContext, beanRegistrationCode);
 	}

spring-beans/src/main/java/org/springframework/beans/factory/aot/DefaultBeanRegistrationCodeFragments.java

@@ -46,8 +46,7 @@ import org.springframework.util.ClassUtils;
 import org.springframework.util.function.SingletonSupplier;
 
 /**
- * Internal {@link BeanRegistrationCodeFragments} implementation used by
- * default.
+ * Internal {@link BeanRegistrationCodeFragments} implementation used by default.
  *
  * @author Phillip Webb
  * @author Stephane Nicoll
@@ -92,9 +91,8 @@ class DefaultBeanRegistrationCodeFragments implements BeanRegistrationCodeFragme
 
 	private Class<?> extractDeclaringClass(RegisteredBean registeredBean, InstantiationDescriptor instantiationDescriptor) {
 		Class<?> declaringClass = ClassUtils.getUserClass(instantiationDescriptor.targetClass());
-		if (instantiationDescriptor.executable() instanceof Constructor<?>
-				&& AccessControl.forMember(instantiationDescriptor.executable()).isPublic()
-				&& FactoryBean.class.isAssignableFrom(declaringClass)) {
+		if (instantiationDescriptor.executable() instanceof Constructor<?> ctor &&
+				AccessControl.forMember(ctor).isPublic() && FactoryBean.class.isAssignableFrom(declaringClass)) {
 			return extractTargetClassFromFactoryBean(declaringClass, registeredBean.getBeanType());
 		}
 		return declaringClass;
@@ -125,17 +123,15 @@ class DefaultBeanRegistrationCodeFragments implements BeanRegistrationCodeFragme
 			ResolvableType beanType, BeanRegistrationCode beanRegistrationCode) {
 
 		CodeBlock.Builder code = CodeBlock.builder();
-		RootBeanDefinition mergedBeanDefinition = this.registeredBean.getMergedBeanDefinition();
-		Class<?> beanClass = (mergedBeanDefinition.hasBeanClass()
-				? ClassUtils.getUserClass(mergedBeanDefinition.getBeanClass()) : null);
+		RootBeanDefinition mbd = this.registeredBean.getMergedBeanDefinition();
+		Class<?> beanClass = (mbd.hasBeanClass() ? ClassUtils.getUserClass(mbd.getBeanClass()) : null);
 		CodeBlock beanClassCode = generateBeanClassCode(
 				beanRegistrationCode.getClassName().packageName(),
 				(beanClass != null ? beanClass : beanType.toClass()));
 		code.addStatement("$T $L = new $T($L)", RootBeanDefinition.class,
 				BEAN_DEFINITION_VARIABLE, RootBeanDefinition.class, beanClassCode);
 		if (targetTypeNecessary(beanType, beanClass)) {
-			code.addStatement("$L.setTargetType($L)", BEAN_DEFINITION_VARIABLE,
-					generateBeanTypeCode(beanType));
+			code.addStatement("$L.setTargetType($L)", BEAN_DEFINITION_VARIABLE, generateBeanTypeCode(beanType));
 		}
 		return code.build();
 	}
@@ -160,8 +156,7 @@ class DefaultBeanRegistrationCodeFragments implements BeanRegistrationCodeFragme
 		if (beanType.hasGenerics()) {
 			return true;
 		}
-		if (beanClass != null
-				&& this.registeredBean.getMergedBeanDefinition().getFactoryMethodName() != null) {
+		if (beanClass != null && this.registeredBean.getMergedBeanDefinition().getFactoryMethodName() != null) {
 			return true;
 		}
 		return (beanClass != null && !beanType.toClass().equals(beanClass));
@@ -169,21 +164,19 @@ class DefaultBeanRegistrationCodeFragments implements BeanRegistrationCodeFragme
 
 	@Override
 	public CodeBlock generateSetBeanDefinitionPropertiesCode(
-			GenerationContext generationContext,
-			BeanRegistrationCode beanRegistrationCode, RootBeanDefinition beanDefinition,
-			Predicate<String> attributeFilter) {
+			GenerationContext generationContext, BeanRegistrationCode beanRegistrationCode,
+			RootBeanDefinition beanDefinition, Predicate<String> attributeFilter) {
+
 		Loader loader = AotServices.factories(this.registeredBean.getBeanFactory().getBeanClassLoader());
 		List<Delegate> additionalDelegates = loader.load(Delegate.class).asList();
 		return new BeanDefinitionPropertiesCodeGenerator(generationContext.getRuntimeHints(),
 				attributeFilter, beanRegistrationCode.getMethods(),
-				additionalDelegates, (name, value) -> generateValueCode(generationContext, name, value)
-		).generateCode(beanDefinition);
+				additionalDelegates, (name, value) -> generateValueCode(generationContext, name, value))
+				.generateCode(beanDefinition);
 	}
 
 	@Nullable
-	protected CodeBlock generateValueCode(GenerationContext generationContext,
-			String name, Object value) {
-
+	protected CodeBlock generateValueCode(GenerationContext generationContext, String name, Object value) {
 		RegisteredBean innerRegisteredBean = getInnerRegisteredBean(value);
 		if (innerRegisteredBean != null) {
 			BeanDefinitionMethodGenerator methodGenerator = this.beanDefinitionMethodGeneratorFactory
@@ -209,9 +202,8 @@ class DefaultBeanRegistrationCodeFragments implements BeanRegistrationCodeFragme
 
 	@Override
 	public CodeBlock generateSetBeanInstanceSupplierCode(
-			GenerationContext generationContext,
-			BeanRegistrationCode beanRegistrationCode, CodeBlock instanceSupplierCode,
-			List<MethodReference> postProcessors) {
+			GenerationContext generationContext, BeanRegistrationCode beanRegistrationCode,
+			CodeBlock instanceSupplierCode, List<MethodReference> postProcessors) {
 
 		CodeBlock.Builder code = CodeBlock.builder();
 		if (postProcessors.isEmpty()) {
@@ -231,19 +223,21 @@ class DefaultBeanRegistrationCodeFragments implements BeanRegistrationCodeFragme
 	}
 
 	@Override
-	public CodeBlock generateInstanceSupplierCode(GenerationContext generationContext,
-			BeanRegistrationCode beanRegistrationCode, boolean allowDirectSupplierShortcut) {
+	public CodeBlock generateInstanceSupplierCode(
+			GenerationContext generationContext, BeanRegistrationCode beanRegistrationCode,
+			boolean allowDirectSupplierShortcut) {
+
 		if (hasInstanceSupplier()) {
 			throw new AotBeanProcessingException(this.registeredBean, "instance supplier is not supported");
 		}
 		return new InstanceSupplierCodeGenerator(generationContext, beanRegistrationCode.getClassName(),
-				beanRegistrationCode.getMethods(), allowDirectSupplierShortcut).generateCode(
-						this.registeredBean, this.instantiationDescriptor.get());
+				beanRegistrationCode.getMethods(), allowDirectSupplierShortcut)
+				.generateCode(this.registeredBean, this.instantiationDescriptor.get());
 	}
 
 	@Override
-	public CodeBlock generateReturnCode(GenerationContext generationContext,
-			BeanRegistrationCode beanRegistrationCode) {
+	public CodeBlock generateReturnCode(
+			GenerationContext generationContext, BeanRegistrationCode beanRegistrationCode) {
 
 		CodeBlock.Builder code = CodeBlock.builder();
 		code.addStatement("return $L", BEAN_DEFINITION_VARIABLE);

spring-context/src/main/java/org/springframework/context/annotation/ConfigurationClassPostProcessor.java

@@ -787,7 +787,8 @@ public class ConfigurationClassPostProcessor implements BeanDefinitionRegistryPo
 
 		@Override
 		public CodeBlock generateSetBeanDefinitionPropertiesCode(GenerationContext generationContext,
-				BeanRegistrationCode beanRegistrationCode, RootBeanDefinition beanDefinition, Predicate<String> attributeFilter) {
+				BeanRegistrationCode beanRegistrationCode, RootBeanDefinition beanDefinition,
+				Predicate<String> attributeFilter) {
 
 			CodeBlock.Builder code = CodeBlock.builder();
 			code.add(super.generateSetBeanDefinitionPropertiesCode(generationContext,
@@ -808,7 +809,9 @@ public class ConfigurationClassPostProcessor implements BeanDefinitionRegistryPo
 					.generateCode(this.registeredBean, instantiationDescriptor);
 		}
 
-		private InstantiationDescriptor proxyInstantiationDescriptor(RuntimeHints runtimeHints, InstantiationDescriptor instantiationDescriptor) {
+		private InstantiationDescriptor proxyInstantiationDescriptor(
+				RuntimeHints runtimeHints, InstantiationDescriptor instantiationDescriptor) {
+
 			Executable userExecutable = instantiationDescriptor.executable();
 			if (userExecutable instanceof Constructor<?> userConstructor) {
 				try {