Jakarta EE 9 migration

Upgrades many dependency declarations; removes old EJB 2.x support and outdated Servlet-based integrations (Commons FileUpload, FreeMarker JSP support, Tiles).

Closes gh-22093
Closes gh-25354
Closes gh-26185
Closes gh-27423
See gh-27424

spring-messaging/src/main/java/org/springframework/messaging/converter/JsonbMessageConverter.java

@@ -21,9 +21,9 @@ import java.io.Writer;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
 
-import javax.json.bind.Jsonb;
-import javax.json.bind.JsonbBuilder;
-import javax.json.bind.JsonbConfig;
+import jakarta.json.bind.Jsonb;
+import jakarta.json.bind.JsonbBuilder;
+import jakarta.json.bind.JsonbConfig;
 
 import org.springframework.util.Assert;
 
@@ -33,8 +33,8 @@ import org.springframework.util.Assert;
  *
  * @author Juergen Hoeller
  * @since 5.3
- * @see javax.json.bind.Jsonb
- * @see javax.json.bind.JsonbBuilder
+ * @see jakarta.json.bind.Jsonb
+ * @see jakarta.json.bind.JsonbBuilder
  * @see #setJsonb
  */
 public class JsonbMessageConverter extends AbstractJsonMessageConverter {

spring-messaging/src/main/java/org/springframework/messaging/handler/annotation/reactive/PayloadMethodArgumentResolver.java

@@ -63,7 +63,7 @@ import org.springframework.validation.annotation.Validated;
  * {@link DataBuffer DataBuffer}.
  *
  * <p>Validation is applied if the method argument is annotated with
- * {@code @javax.validation.Valid} or
+ * {@code @jakarta.validation.Valid} or
  * {@link org.springframework.validation.annotation.Validated}. Validation
  * failure results in an {@link MethodArgumentNotValidException}.
  *
@@ -143,7 +143,7 @@ public class PayloadMethodArgumentResolver implements HandlerMethodArgumentResol
 	 * {@link Decoder}.
 	 *
 	 * <p>Validation is applied if the method argument is annotated with
-	 * {@code @javax.validation.Valid} or
+	 * {@code @jakarta.validation.Valid} or
 	 * {@link org.springframework.validation.annotation.Validated}. Validation
 	 * failure results in an {@link MethodArgumentNotValidException}.
 	 *

spring-messaging/src/main/java/org/springframework/messaging/handler/annotation/support/PayloadMethodArgumentResolver.java

@@ -190,7 +190,7 @@ public class PayloadMethodArgumentResolver implements HandlerMethodArgumentResol
 
 	/**
 	 * Validate the payload if applicable.
-	 * <p>The default implementation checks for {@code @javax.validation.Valid},
+	 * <p>The default implementation checks for {@code @jakarta.validation.Valid},
 	 * Spring's {@link Validated},
 	 * and custom annotations whose name starts with "Valid".
 	 * @param message the currently processed message

spring-messaging/src/main/java/org/springframework/messaging/simp/config/AbstractMessageBrokerConfiguration.java

@@ -112,7 +112,7 @@ public abstract class AbstractMessageBrokerConfiguration implements ApplicationC
 		jackson2Present = ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", classLoader) &&
 				ClassUtils.isPresent("com.fasterxml.jackson.core.JsonGenerator", classLoader);
 		gsonPresent = ClassUtils.isPresent("com.google.gson.Gson", classLoader);
-		jsonbPresent = ClassUtils.isPresent("javax.json.bind.Jsonb", classLoader);
+		jsonbPresent = ClassUtils.isPresent("jakarta.json.bind.Jsonb", classLoader);
 		kotlinSerializationJsonPresent = ClassUtils.isPresent("kotlinx.serialization.json.Json", classLoader);
 	}
 
@@ -553,7 +553,7 @@ public abstract class AbstractMessageBrokerConfiguration implements ApplicationC
 			if (this.applicationContext != null && this.applicationContext.containsBean(MVC_VALIDATOR_NAME)) {
 				validator = this.applicationContext.getBean(MVC_VALIDATOR_NAME, Validator.class);
 			}
-			else if (ClassUtils.isPresent("javax.validation.Validator", getClass().getClassLoader())) {
+			else if (ClassUtils.isPresent("jakarta.validation.Validator", getClass().getClassLoader())) {
 				Class<?> clazz;
 				try {
 					String className = "org.springframework.validation.beanvalidation.OptionalValidatorFactoryBean";

spring-messaging/src/test/java/org/springframework/messaging/converter/JsonbMessageConverterTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 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.
@@ -17,6 +17,7 @@
 package org.springframework.messaging.converter;
 
 import java.lang.reflect.Method;
+import java.math.BigDecimal;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -74,8 +75,8 @@ public class JsonbMessageConverterTests {
 		HashMap<String, Object> actual = (HashMap<String, Object>) converter.fromMessage(message, HashMap.class);
 
 		assertThat(actual.get("string")).isEqualTo("Foo");
-		assertThat(actual.get("number")).isEqualTo(42);
-		assertThat((Double) actual.get("fraction")).isCloseTo(42D, within(0D));
+		assertThat(actual.get("number")).isEqualTo(new BigDecimal(42));
+		assertThat((BigDecimal) actual.get("fraction")).isCloseTo(new BigDecimal(42), within(new BigDecimal(0)));
 		assertThat(actual.get("array")).isEqualTo(Arrays.asList("Foo", "Bar"));
 		assertThat(actual.get("bool")).isEqualTo(Boolean.TRUE);
 	}
@@ -165,7 +166,7 @@ public class JsonbMessageConverterTests {
 		String payload = "H\u00e9llo W\u00f6rld";
 		Message<?> message = converter.toMessage(payload, headers);
 
-		assertThat(new String((byte[]) message.getPayload(), StandardCharsets.UTF_16BE)).isEqualTo(payload);
+		assertThat(new String((byte[]) message.getPayload(), StandardCharsets.UTF_16BE)).isEqualTo("\"" + payload + "\"");
 		assertThat(message.getHeaders().get(MessageHeaders.CONTENT_TYPE)).isEqualTo(contentType);
 	}
 
@@ -181,7 +182,7 @@ public class JsonbMessageConverterTests {
 		String payload = "H\u00e9llo W\u00f6rld";
 		Message<?> message = converter.toMessage(payload, headers);
 
-		assertThat(message.getPayload()).isEqualTo(payload);
+		assertThat(message.getPayload()).isEqualTo("\"" + payload + "\"");
 		assertThat(message.getHeaders().get(MessageHeaders.CONTENT_TYPE)).isEqualTo(contentType);
 	}
 

spring-messaging/src/test/java/org/springframework/messaging/converter/MarshallingMessageConverterTests.java

@@ -19,8 +19,7 @@ package org.springframework.messaging.converter;
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 
-import javax.xml.bind.annotation.XmlRootElement;
-
+import jakarta.xml.bind.annotation.XmlRootElement;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.xmlunit.diff.DifferenceEvaluator;