Migrate to Jakarta EE 9

Closes gh-1949

spring-session-docs/modules/ROOT/examples/java/docs/security/RememberMeSecurityConfigurationTests.java

@@ -19,7 +19,7 @@ package docs.security;
 import java.time.Duration;
 import java.util.Base64;
 
-import javax.servlet.http.Cookie;
+import jakarta.servlet.http.Cookie;
 
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;

spring-session-docs/modules/ROOT/examples/java/docs/security/RememberMeSecurityConfigurationXmlTests.java

@@ -19,7 +19,7 @@ package docs.security;
 import java.time.Duration;
 import java.util.Base64;
 
-import javax.servlet.http.Cookie;
+import jakarta.servlet.http.Cookie;
 
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;

spring-session-docs/spring-session-docs.gradle

@@ -22,7 +22,8 @@ dependencies {
 	testImplementation 'org.assertj:assertj-core'
 	testImplementation 'com.hazelcast:hazelcast'
 	testImplementation 'io.lettuce:lettuce-core'
-	testImplementation 'javax.servlet:javax.servlet-api'
+    testImplementation 'jakarta.annotation:jakarta.annotation-api'
+	testImplementation 'jakarta.servlet:jakarta.servlet-api'
 	testImplementation 'org.junit.jupiter:junit-jupiter-api'
 	testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine'
 }

spring-session-docs/src/test/java/docs/security/RememberMeSecurityConfigurationTests.java

@@ -19,7 +19,7 @@ package docs.security;
 import java.time.Duration;
 import java.util.Base64;
 
-import javax.servlet.http.Cookie;
+import jakarta.servlet.http.Cookie;
 
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;

spring-session-docs/src/test/java/docs/security/RememberMeSecurityConfigurationXmlTests.java

@@ -19,7 +19,7 @@ package docs.security;
 import java.time.Duration;
 import java.util.Base64;
 
-import javax.servlet.http.Cookie;
+import jakarta.servlet.http.Cookie;
 
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;