Move Spring dependencies to SNAPSHOTs

* Use a `DefaultParameterNameDiscoverer` instead of deprecated `LocalVariableTableParameterNameDiscoverer`
* Fix assertion error message for `@Header` without `name` and with no `-parameters` compiler flag.
* Remove redundant repos for Gradle plugins

Related to: https://stackoverflow.com/questions/74600681/warning-printed-after-migrating-to-spring-boot-3-0-spring-integration-6-0

spring-integration-core/src/main/java/org/springframework/integration/aop/MessagePublishingInterceptor.java

@@ -27,7 +27,7 @@ import org.springframework.aop.support.AopUtils;
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.BeanFactoryAware;
-import org.springframework.core.LocalVariableTableParameterNameDiscoverer;
+import org.springframework.core.DefaultParameterNameDiscoverer;
 import org.springframework.core.ParameterNameDiscoverer;
 import org.springframework.expression.Expression;
 import org.springframework.expression.spel.support.StandardEvaluationContext;
@@ -60,7 +60,7 @@ public class MessagePublishingInterceptor implements MethodInterceptor, BeanFact
 
 	private final MessagingTemplate messagingTemplate = new MessagingTemplate();
 
-	private final ParameterNameDiscoverer parameterNameDiscoverer = new LocalVariableTableParameterNameDiscoverer();
+	private final ParameterNameDiscoverer parameterNameDiscoverer = new DefaultParameterNameDiscoverer();
 
 	private final PublisherMetadataSource metadataSource;
 
@@ -113,7 +113,7 @@ public class MessagePublishingInterceptor implements MethodInterceptor, BeanFact
 		initMessagingTemplateIfAny();
 		StandardEvaluationContext context = ExpressionUtils.createStandardEvaluationContext(this.beanFactory);
 		Class<?> targetClass = AopUtils.getTargetClass(invocation.getThis());
-		final Method method = AopUtils.getMostSpecificMethod(invocation.getMethod(), targetClass);
+		Method method = AopUtils.getMostSpecificMethod(invocation.getMethod(), targetClass);
 		String[] argumentNames = resolveArgumentNames(method);
 		context.setVariable(PublisherMetadataSource.METHOD_NAME_VARIABLE_NAME, method.getName());
 		if (invocation.getArguments().length > 0 && argumentNames != null) {

spring-integration-core/src/main/java/org/springframework/integration/aop/MethodAnnotationPublisherMetadataSource.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2022 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.
@@ -25,7 +25,7 @@ import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
-import org.springframework.core.LocalVariableTableParameterNameDiscoverer;
+import org.springframework.core.DefaultParameterNameDiscoverer;
 import org.springframework.core.ParameterNameDiscoverer;
 import org.springframework.core.annotation.MergedAnnotation;
 import org.springframework.core.annotation.MergedAnnotations;
@@ -52,7 +52,7 @@ import org.springframework.util.StringUtils;
  */
 public class MethodAnnotationPublisherMetadataSource implements PublisherMetadataSource {
 
-	private final ParameterNameDiscoverer parameterNameDiscoverer = new LocalVariableTableParameterNameDiscoverer();
+	private final ParameterNameDiscoverer parameterNameDiscoverer = new DefaultParameterNameDiscoverer();
 
 	private final Map<Method, String> channels = new ConcurrentHashMap<>();
 

spring-integration-core/src/main/java/org/springframework/integration/gateway/GatewayMethodInboundMessageMapper.java

@@ -30,7 +30,7 @@ import org.apache.commons.logging.LogFactory;
 
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.BeanFactoryAware;
-import org.springframework.core.LocalVariableTableParameterNameDiscoverer;
+import org.springframework.core.DefaultParameterNameDiscoverer;
 import org.springframework.core.MethodParameter;
 import org.springframework.core.ParameterNameDiscoverer;
 import org.springframework.core.annotation.AnnotationUtils;
@@ -89,6 +89,8 @@ class GatewayMethodInboundMessageMapper implements InboundMessageMapper<Object[]
 
 	private static final SpelExpressionParser PARSER = new SpelExpressionParser();
 
+	private static final ParameterNameDiscoverer PARAMETER_NAME_DISCOVERER = new DefaultParameterNameDiscoverer();
+
 	private final Map<String, Expression> parameterPayloadExpressions = new HashMap<>();
 
 	private final Method method;
@@ -242,17 +244,16 @@ class GatewayMethodInboundMessageMapper implements InboundMessageMapper<Object[]
 	static String determineHeaderName(Annotation headerAnnotation, MethodParameter methodParameter) {
 		String valueAttribute = (String) AnnotationUtils.getValue(headerAnnotation);
 		String headerName = StringUtils.hasText(valueAttribute) ? valueAttribute : methodParameter.getParameterName();
-		Assert.notNull(headerName, "Cannot determine header name. Possible reasons: -debug is " +
+		Assert.notNull(headerName, "Cannot determine header name. Possible reasons: the -parameters compiler flag is " +
 				"disabled or header name is not explicitly provided via @Header annotation.");
 		return headerName;
 	}
 
 	static List<MethodParameter> getMethodParameterList(Method method) {
 		List<MethodParameter> parameterList = new LinkedList<>();
-		ParameterNameDiscoverer parameterNameDiscoverer = new LocalVariableTableParameterNameDiscoverer();
 		for (int i = 0; i < method.getParameterCount(); i++) {
 			MethodParameter methodParameter = new SynthesizingMethodParameter(method, i);
-			methodParameter.initParameterNameDiscovery(parameterNameDiscoverer);
+			methodParameter.initParameterNameDiscovery(PARAMETER_NAME_DISCOVERER);
 			parameterList.add(methodParameter);
 		}
 		return parameterList;

spring-integration-core/src/main/java/org/springframework/integration/handler/support/MessagingMethodInvokerHelper.java

@@ -49,8 +49,8 @@ import org.springframework.beans.factory.config.ConfigurableBeanFactory;
 import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
 import org.springframework.context.Lifecycle;
 import org.springframework.context.expression.StandardBeanExpressionResolver;
+import org.springframework.core.DefaultParameterNameDiscoverer;
 import org.springframework.core.KotlinDetector;
-import org.springframework.core.LocalVariableTableParameterNameDiscoverer;
 import org.springframework.core.MethodParameter;
 import org.springframework.core.ParameterNameDiscoverer;
 import org.springframework.core.annotation.AnnotatedElementUtils;
@@ -143,8 +143,7 @@ public class MessagingMethodInvokerHelper extends AbstractExpressionEvaluator im
 	private static final ExpressionParser EXPRESSION_PARSER_MIXED =
 			new SpelExpressionParser(new SpelParserConfiguration(SpelCompilerMode.MIXED, null));
 
-	private static final ParameterNameDiscoverer PARAMETER_NAME_DISCOVERER =
-			new LocalVariableTableParameterNameDiscoverer();
+	private static final ParameterNameDiscoverer PARAMETER_NAME_DISCOVERER = new DefaultParameterNameDiscoverer();
 
 	private static final Map<SpelCompilerMode, ExpressionParser> SPEL_COMPILERS = new HashMap<>();
 
@@ -1285,8 +1284,8 @@ public class MessagingMethodInvokerHelper extends AbstractExpressionEvaluator im
 				}
 			}
 
-			Assert.notNull(headerName, "Cannot determine header name. Possible reasons: -debug is "
-					+ "disabled or header name is not explicitly provided via @Header annotation.");
+			Assert.notNull(headerName, "Cannot determine header name. Possible reasons: the -parameters compiler flag "
+					+ "is disabled or header name is not explicitly provided via @Header annotation.");
 			String headerRetrievalExpression = "headers['" + headerName + "']";
 			String fullHeaderExpression = headerRetrievalExpression + relativeExpression;
 			if (annotationAttributes.getBoolean("required")