Consistent documentation references to Jakarta WebSocket (2.1)

Closes gh-29581

spring-websocket/src/main/java/org/springframework/web/socket/adapter/standard/package-info.java

@@ -1,5 +1,5 @@
 /**
- * Adapter classes for the standard Java WebSocket API.
+ * Adapter classes for the standard Jakarta WebSocket API.
  */
 @NonNullApi
 @NonNullFields

spring-websocket/src/main/java/org/springframework/web/socket/client/standard/StandardWebSocketClient.java

@@ -51,7 +51,7 @@ import org.springframework.web.socket.adapter.standard.WebSocketToStandardExtens
 import org.springframework.web.socket.client.AbstractWebSocketClient;
 
 /**
- * A WebSocketClient based on standard Java WebSocket API.
+ * A WebSocketClient based on the standard Jakarta WebSocket API.
  *
  * @author Rossen Stoyanchev
  * @since 4.0
@@ -88,7 +88,7 @@ public class StandardWebSocketClient extends AbstractWebSocketClient {
 
 
 	/**
-	 * The standard Java WebSocket API allows passing "user properties" to the
+	 * The standard Jakarta WebSocket API allows passing "user properties" to the
 	 * server via {@link ClientEndpointConfig#getUserProperties() userProperties}.
 	 * Use this property to configure one or more properties to be passed on
 	 * every handshake.

spring-websocket/src/main/java/org/springframework/web/socket/client/standard/package-info.java

@@ -1,5 +1,5 @@
 /**
- * Client-side classes for use with standard Java WebSocket endpoints.
+ * Client-side classes for use with standard Jakarta WebSocket endpoints.
  */
 @NonNullApi
 @NonNullFields

spring-websocket/src/main/java/org/springframework/web/socket/server/RequestUpgradeStrategy.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 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.
@@ -31,6 +31,7 @@ import org.springframework.web.socket.WebSocketHandler;
  *
  * @author Rossen Stoyanchev
  * @since 4.0
+ * @see org.springframework.web.socket.server.standard.StandardWebSocketUpgradeStrategy
  */
 public interface RequestUpgradeStrategy {
 

spring-websocket/src/main/java/org/springframework/web/socket/server/standard/ServerEndpointExporter.java

@@ -37,7 +37,7 @@ import org.springframework.web.context.support.WebApplicationObjectSupport;
 
 /**
  * Detects beans of type {@link jakarta.websocket.server.ServerEndpointConfig} and registers
- * with the standard Java WebSocket runtime. Also detects beans annotated with
+ * with the standard Jakarta WebSocket runtime. Also detects beans annotated with
  * {@link ServerEndpoint} and registers them as well. Although not required, it is likely
  * annotated endpoints should have their {@code configurator} property set to
  * {@link SpringConfigurator}.

spring-websocket/src/main/java/org/springframework/web/socket/server/standard/ServerEndpointRegistration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 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.
@@ -38,7 +38,7 @@ import org.springframework.web.socket.handler.BeanCreatingHandlerProvider;
 /**
  * An implementation of {@link jakarta.websocket.server.ServerEndpointConfig} for use in
  * Spring-based applications. A {@link ServerEndpointRegistration} bean is detected by
- * {@link ServerEndpointExporter} and registered with a Java WebSocket runtime at startup.
+ * {@link ServerEndpointExporter} and registered with a Jakarta WebSocket runtime at startup.
  *
  * <p>Class constructors accept a singleton {@link jakarta.websocket.Endpoint} instance
  * or an Endpoint specified by type {@link Class}. When specified by type, the endpoint