Remove validation starter from web starters

This commit removes the validation starter from the web and
webflux starters - we've reconsidered that choice since many were
not using this feature as part of their default web experience.

Thit commit also changes the default EL implementation for the
Jakarta implementation, aligning all servers on it and simplifying
dependency management (especially exclusions that were required
previously).

Closes gh-19550

Author: bclozel

Diff for: spring-boot-project/spring-boot-starters/spring-boot-starter-jetty/build.gradle

@@ -21,5 +21,5 @@ dependencies {
 		exclude group: 'javax.websocket', module: 'javax.websocket-api'
 		exclude group: 'javax.websocket', module: 'javax.websocket-client-api'
 	}
-	api 'org.mortbay.jasper:apache-el'
+	api 'org.glassfish:jakarta.el'
 }

Diff for: spring-boot-project/spring-boot-starters/spring-boot-starter-tomcat/build.gradle

@@ -10,7 +10,7 @@ dependencies {
 	api ('org.apache.tomcat.embed:tomcat-embed-core') {
 		exclude group: 'org.apache.tomcat', module: 'tomcat-annotations-api'
 	}
-	api 'org.apache.tomcat.embed:tomcat-embed-el'
+	api 'org.glassfish:jakarta.el'
 	api ('org.apache.tomcat.embed:tomcat-embed-websocket') {
 		exclude group: 'org.apache.tomcat', module: 'tomcat-annotations-api'
 	}

Diff for: spring-boot-project/spring-boot-starters/spring-boot-starter-validation/build.gradle

@@ -7,6 +7,6 @@ description = "Starter for using Java Bean Validation with Hibernate Validator"
 dependencies {
 	api enforcedPlatform(project(':spring-boot-project:spring-boot-dependencies'))
 	api project(':spring-boot-project:spring-boot-starters:spring-boot-starter')
-	api 'org.apache.tomcat.embed:tomcat-embed-el'
+	api 'org.glassfish:jakarta.el'
 	api 'org.hibernate.validator:hibernate-validator'
 }

Diff for: spring-boot-project/spring-boot-starters/spring-boot-starter-web/build.gradle

@@ -9,8 +9,6 @@ dependencies {
 	api project(':spring-boot-project:spring-boot-starters:spring-boot-starter')
 	api project(':spring-boot-project:spring-boot-starters:spring-boot-starter-json')
 	api project(':spring-boot-project:spring-boot-starters:spring-boot-starter-tomcat')
-	api project(':spring-boot-project:spring-boot-starters:spring-boot-starter-validation')
-	api 'org.hibernate.validator:hibernate-validator'
 	api 'org.springframework:spring-web'
 	api 'org.springframework:spring-webmvc'
 }

Diff for: spring-boot-project/spring-boot-starters/spring-boot-starter-webflux/build.gradle

@@ -9,7 +9,6 @@ dependencies {
 	api project(':spring-boot-project:spring-boot-starters:spring-boot-starter')
 	api project(':spring-boot-project:spring-boot-starters:spring-boot-starter-json')
 	api project(':spring-boot-project:spring-boot-starters:spring-boot-starter-reactor-netty')
-	api 'org.hibernate.validator:hibernate-validator'
 	api 'org.springframework:spring-web'
 	api 'org.springframework:spring-webflux'
 	api 'org.synchronoss.cloud:nio-multipart-parser'

Diff for: spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-actuator/build.gradle

@@ -10,6 +10,7 @@ dependencies {
 	implementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-jdbc')
 	implementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-security')
 	implementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-web')
+	implementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-validation')
 	runtimeOnly 'com.h2database:h2'
 
 	testImplementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-test')

Diff for: spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-web-groovy-templates/build.gradle

@@ -7,6 +7,7 @@ description = 'Spring Boot web Groovy Templates smoke test'
 
 dependencies {	
 	implementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-groovy-templates')
+	implementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-validation')
 	if (JavaVersion.current().java9Compatible) {
 		implementation 'jakarta.xml.bind:jakarta.xml.bind-api'
 	}

Diff for: spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-web-ui/build.gradle

@@ -8,6 +8,7 @@ description = 'Spring Boot web UI smoke test'
 dependencies {	
 	implementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-thymeleaf')
 	implementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-web')
+	implementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-validation')
 
 	testImplementation project(':spring-boot-project:spring-boot-starters:spring-boot-starter-test')
 }