Avoid unnecessary boxing where primitives can be used

Closes gh-23267

spring-aop/src/main/java/org/springframework/aop/config/ScopedProxyBeanDefinitionDecorator.java

@@ -45,7 +45,7 @@ class ScopedProxyBeanDefinitionDecorator implements BeanDefinitionDecorator {
 		if (node instanceof Element) {
 			Element ele = (Element) node;
 			if (ele.hasAttribute(PROXY_TARGET_CLASS)) {
-				proxyTargetClass = Boolean.valueOf(ele.getAttribute(PROXY_TARGET_CLASS));
+				proxyTargetClass = Boolean.parseBoolean(ele.getAttribute(PROXY_TARGET_CLASS));
 			}
 		}
 

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

@@ -183,7 +183,7 @@ public class RequiredAnnotationBeanPostProcessor extends InstantiationAwareBeanP
 			return true;
 		}
 		Object value = beanDefinition.getAttribute(SKIP_REQUIRED_CHECK_ATTRIBUTE);
-		return (value != null && (Boolean.TRUE.equals(value) || Boolean.valueOf(value.toString())));
+		return (value != null && (Boolean.TRUE.equals(value) || Boolean.parseBoolean(value.toString())));
 	}
 
 	/**

spring-context/src/main/java/org/springframework/cache/config/CacheAdviceParser.java

@@ -111,7 +111,7 @@ class CacheAdviceParser extends AbstractSingleBeanDefinitionParser {
 			CacheableOperation.Builder builder = prop.merge(opElement,
 					parserContext.getReaderContext(), new CacheableOperation.Builder());
 			builder.setUnless(getAttributeValue(opElement, "unless", ""));
-			builder.setSync(Boolean.valueOf(getAttributeValue(opElement, "sync", "false")));
+			builder.setSync(Boolean.parseBoolean(getAttributeValue(opElement, "sync", "false")));
 
 			Collection<CacheOperation> col = cacheOpMap.get(nameHolder);
 			if (col == null) {
@@ -132,12 +132,12 @@ class CacheAdviceParser extends AbstractSingleBeanDefinitionParser {
 
 			String wide = opElement.getAttribute("all-entries");
 			if (StringUtils.hasText(wide)) {
-				builder.setCacheWide(Boolean.valueOf(wide.trim()));
+				builder.setCacheWide(Boolean.parseBoolean(wide.trim()));
 			}
 
 			String after = opElement.getAttribute("before-invocation");
 			if (StringUtils.hasText(after)) {
-				builder.setBeforeInvocation(Boolean.valueOf(after.trim()));
+				builder.setBeforeInvocation(Boolean.parseBoolean(after.trim()));
 			}
 
 			Collection<CacheOperation> col = cacheOpMap.get(nameHolder);

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

@@ -96,7 +96,7 @@ public class ComponentScanBeanDefinitionParser implements BeanDefinitionParser {
 	protected ClassPathBeanDefinitionScanner configureScanner(ParserContext parserContext, Element element) {
 		boolean useDefaultFilters = true;
 		if (element.hasAttribute(USE_DEFAULT_FILTERS_ATTRIBUTE)) {
-			useDefaultFilters = Boolean.valueOf(element.getAttribute(USE_DEFAULT_FILTERS_ATTRIBUTE));
+			useDefaultFilters = Boolean.parseBoolean(element.getAttribute(USE_DEFAULT_FILTERS_ATTRIBUTE));
 		}
 
 		// Delegate bean definition registration to scanner class.
@@ -145,7 +145,7 @@ public class ComponentScanBeanDefinitionParser implements BeanDefinitionParser {
 		// Register annotation config processors, if necessary.
 		boolean annotationConfig = true;
 		if (element.hasAttribute(ANNOTATION_CONFIG_ATTRIBUTE)) {
-			annotationConfig = Boolean.valueOf(element.getAttribute(ANNOTATION_CONFIG_ATTRIBUTE));
+			annotationConfig = Boolean.parseBoolean(element.getAttribute(ANNOTATION_CONFIG_ATTRIBUTE));
 		}
 		if (annotationConfig) {
 			Set<BeanDefinitionHolder> processorDefinitions =

spring-context/src/main/java/org/springframework/scheduling/config/AnnotationDrivenBeanDefinitionParser.java

@@ -81,7 +81,7 @@ public class AnnotationDrivenBeanDefinitionParser implements BeanDefinitionParse
 				if (StringUtils.hasText(exceptionHandler)) {
 					builder.addPropertyReference("exceptionHandler", exceptionHandler);
 				}
-				if (Boolean.valueOf(element.getAttribute(AopNamespaceUtils.PROXY_TARGET_CLASS_ATTRIBUTE))) {
+				if (Boolean.parseBoolean(element.getAttribute(AopNamespaceUtils.PROXY_TARGET_CLASS_ATTRIBUTE))) {
 					builder.addPropertyValue("proxyTargetClass", true);
 				}
 				registerPostProcessor(parserContext, builder, TaskManagementConfigUtils.ASYNC_ANNOTATION_PROCESSOR_BEAN_NAME);

spring-context/src/main/java/org/springframework/scheduling/config/TaskExecutorFactoryBean.java

@@ -106,8 +106,8 @@ public class TaskExecutorFactoryBean implements
 				int maxPoolSize;
 				int separatorIndex = this.poolSize.indexOf('-');
 				if (separatorIndex != -1) {
-					corePoolSize = Integer.valueOf(this.poolSize.substring(0, separatorIndex));
+					corePoolSize = Integer.parseInt(this.poolSize.substring(0, separatorIndex));
-					maxPoolSize = Integer.valueOf(this.poolSize.substring(separatorIndex + 1, this.poolSize.length()));
+					maxPoolSize = Integer.parseInt(this.poolSize.substring(separatorIndex + 1, this.poolSize.length()));
 					if (corePoolSize > maxPoolSize) {
 						throw new IllegalArgumentException(
 								"Lower bound of pool-size range must not exceed the upper bound");

spring-context/src/main/java/org/springframework/scheduling/support/CronSequenceGenerator.java

@@ -372,7 +372,7 @@ public class CronSequenceGenerator {
 			return result;
 		}
 		if (!field.contains("-")) {
-			result[0] = result[1] = Integer.valueOf(field);
+			result[0] = result[1] = Integer.parseInt(field);
 		}
 		else {
 			String[] split = StringUtils.delimitedListToStringArray(field, "-");
@@ -380,8 +380,8 @@ public class CronSequenceGenerator {
 				throw new IllegalArgumentException("Range has more than two fields: '" +
 						field + "' in expression \"" + this.expression + "\"");
 			}
-			result[0] = Integer.valueOf(split[0]);
+			result[0] = Integer.parseInt(split[0]);
-			result[1] = Integer.valueOf(split[1]);
+			result[1] = Integer.parseInt(split[1]);
 		}
 		if (result[0] >= max || result[1] >= max) {
 			throw new IllegalArgumentException("Range exceeds maximum (" + max + "): '" +

spring-context/src/main/java/org/springframework/scripting/support/ScriptFactoryPostProcessor.java

@@ -426,7 +426,7 @@ public class ScriptFactoryPostProcessor extends InstantiationAwareBeanPostProces
 			proxyTargetClass = (Boolean) attributeValue;
 		}
 		else if (attributeValue instanceof String) {
-			proxyTargetClass = Boolean.valueOf((String) attributeValue);
+			proxyTargetClass = Boolean.parseBoolean((String) attributeValue);
 		}
 		else if (attributeValue != null) {
 			throw new BeanDefinitionStoreException("Invalid proxy target class attribute [" +

spring-messaging/src/main/java/org/springframework/messaging/simp/stomp/StompHeaderAccessor.java

@@ -243,7 +243,7 @@ public class StompHeaderAccessor extends SimpMessageHeaderAccessor {
 		if (rawValues == null) {
 			return Arrays.copyOf(DEFAULT_HEARTBEAT, 2);
 		}
-		return new long[] {Long.valueOf(rawValues[0]), Long.valueOf(rawValues[1])};
+		return new long[] {Long.parseLong(rawValues[0]), Long.parseLong(rawValues[1])};
 	}
 
 	public void setAcceptVersion(String acceptVersion) {

spring-messaging/src/main/java/org/springframework/messaging/simp/stomp/StompHeaders.java

@@ -282,7 +282,7 @@ public class StompHeaders implements MultiValueMap<String, String>, Serializable
 		if (rawValues == null) {
 			return null;
 		}
-		return new long[] {Long.valueOf(rawValues[0]), Long.valueOf(rawValues[1])};
+		return new long[] {Long.parseLong(rawValues[0]), Long.parseLong(rawValues[1])};
 	}
 
 	/**

spring-orm/src/main/java/org/springframework/orm/jpa/persistenceunit/PersistenceUnitReader.java

@@ -230,7 +230,7 @@ final class PersistenceUnitReader {
 		Element excludeUnlistedClasses = DomUtils.getChildElementByTagName(persistenceUnit, EXCLUDE_UNLISTED_CLASSES);
 		if (excludeUnlistedClasses != null) {
 			String excludeText = DomUtils.getTextValue(excludeUnlistedClasses);
-			unitInfo.setExcludeUnlistedClasses(!StringUtils.hasText(excludeText) || Boolean.valueOf(excludeText));
+			unitInfo.setExcludeUnlistedClasses(!StringUtils.hasText(excludeText) || Boolean.parseBoolean(excludeText));
 		}
 
 		// set JPA 2.0 shared cache mode

spring-tx/src/main/java/org/springframework/transaction/config/TxAdviceBeanDefinitionParser.java

@@ -124,7 +124,7 @@ class TxAdviceBeanDefinitionParser extends AbstractSingleBeanDefinitionParser {
 				}
 			}
 			if (StringUtils.hasText(readOnly)) {
-				attribute.setReadOnly(Boolean.valueOf(methodEle.getAttribute(READ_ONLY_ATTRIBUTE)));
+				attribute.setReadOnly(Boolean.parseBoolean(methodEle.getAttribute(READ_ONLY_ATTRIBUTE)));
 			}
 
 			List<RollbackRuleAttribute> rollbackRules = new LinkedList<>();

spring-web/src/main/java/org/springframework/http/codec/ServerSentEventHttpMessageReader.java

@@ -130,7 +130,7 @@ public class ServerSentEventHttpMessageReader implements HttpMessageReader<Objec
 					sseBuilder.event(line.substring(6).trim());
 				}
 				else if (line.startsWith("retry:")) {
-					sseBuilder.retry(Duration.ofMillis(Long.valueOf(line.substring(6).trim())));
+					sseBuilder.retry(Duration.ofMillis(Long.parseLong(line.substring(6).trim())));
 				}
 				else if (line.startsWith(":")) {
 					comment = (comment != null ? comment : new StringBuilder());

spring-webmvc/src/main/java/org/springframework/web/servlet/config/AnnotationDrivenBeanDefinitionParser.java

@@ -569,7 +569,7 @@ class AnnotationDrivenBeanDefinitionParser implements BeanDefinitionParser {
 			}
 		}
 
-		if (convertersElement == null || Boolean.valueOf(convertersElement.getAttribute("register-defaults"))) {
+		if (convertersElement == null || Boolean.parseBoolean(convertersElement.getAttribute("register-defaults"))) {
 			messageConverters.setSource(source);
 			messageConverters.add(createConverterDefinition(ByteArrayHttpMessageConverter.class, source));
 

spring-websocket/src/main/java/org/springframework/web/socket/config/HandlersBeanDefinitionParser.java

@@ -64,7 +64,7 @@ class HandlersBeanDefinitionParser implements BeanDefinitionParser {
 		context.pushContainingComponent(compDefinition);
 
 		String orderAttribute = element.getAttribute("order");
-		int order = orderAttribute.isEmpty() ? DEFAULT_MAPPING_ORDER : Integer.valueOf(orderAttribute);
+		int order = orderAttribute.isEmpty() ? DEFAULT_MAPPING_ORDER : Integer.parseInt(orderAttribute);
 
 		RootBeanDefinition handlerMappingDef = new RootBeanDefinition(WebSocketHandlerMapping.class);
 		handlerMappingDef.setSource(source);

spring-websocket/src/main/java/org/springframework/web/socket/config/MessageBrokerBeanDefinitionParser.java

@@ -200,7 +200,7 @@ class MessageBrokerBeanDefinitionParser implements BeanDefinitionParser {
 		RootBeanDefinition handlerMappingDef = new RootBeanDefinition(WebSocketHandlerMapping.class);
 
 		String orderAttribute = element.getAttribute("order");
-		int order = orderAttribute.isEmpty() ? DEFAULT_MAPPING_ORDER : Integer.valueOf(orderAttribute);
+		int order = orderAttribute.isEmpty() ? DEFAULT_MAPPING_ORDER : Integer.parseInt(orderAttribute);
 		handlerMappingDef.getPropertyValues().add("order", order);
 
 		String pathHelper = element.getAttribute("path-helper");
@@ -485,7 +485,7 @@ class MessageBrokerBeanDefinitionParser implements BeanDefinitionParser {
 				converters.add(object);
 			}
 		}
-		if (convertersElement == null || Boolean.valueOf(convertersElement.getAttribute("register-defaults"))) {
+		if (convertersElement == null || Boolean.parseBoolean(convertersElement.getAttribute("register-defaults"))) {
 			converters.setSource(source);
 			converters.add(new RootBeanDefinition(StringMessageConverter.class));
 			converters.add(new RootBeanDefinition(ByteArrayMessageConverter.class));

spring-websocket/src/main/java/org/springframework/web/socket/sockjs/client/AbstractClientSockJsSession.java

@@ -307,7 +307,7 @@ public abstract class AbstractClientSockJsSession implements WebSocketSession {
 			if (frameData != null) {
 				String[] data = getMessageCodec().decode(frameData);
 				if (data != null && data.length == 2) {
-					closeStatus = new CloseStatus(Integer.valueOf(data[0]), data[1]);
+					closeStatus = new CloseStatus(Integer.parseInt(data[0]), data[1]);
 				}
 				if (logger.isDebugEnabled()) {
 					logger.debug("Processing SockJS close frame with " + closeStatus + " in " + this);