Release 2.1.0.M3

See gh-1111

Jenkinsfile

@@ -22,7 +22,7 @@ try {
 						throw e
 					}
 					finally {
-						junit '**/build/*-results/*.xml'
+						junit '**/build/test-results/*/*.xml'
 					}
 				}
 			}

build.gradle

@@ -1,6 +1,6 @@
 buildscript {
 	dependencies {
-		classpath 'io.spring.gradle:spring-build-conventions:0.0.17.RELEASE'
+		classpath 'io.spring.gradle:spring-build-conventions:0.0.18.RELEASE'
 		classpath "org.springframework.boot:spring-boot-gradle-plugin:$springBootVersion"
 	}
 	repositories {

etc/checkstyle/checkstyle.xml

@@ -4,7 +4,7 @@
 <module name="Checker">
 	<!-- Supressions -->
 	<module name="SuppressionFilter">
-		<property name="file" value="${configDir}/suppressions.xml"/>
+		<property name="file" value="${config_loc}/suppressions.xml"/>
 	</module>
 
 	<!-- Root Checks -->

etc/checkstyle/header.txt

@@ -1,16 +0,0 @@
-^\Q/*\E$
-^\Q * Copyright 2014-\E20\d\d\Q the original author or authors.\E$
-^\Q *\E$
-^\Q * Licensed under the Apache License, Version 2.0 (the "License");\E$
-^\Q * you may not use this file except in compliance with the License.\E$
-^\Q * You may obtain a copy of the License at\E$
-^\Q *\E$
-^\Q *      http://www.apache.org/licenses/LICENSE-2.0\E$
-^\Q *\E$
-^\Q * Unless required by applicable law or agreed to in writing, software\E$
-^\Q * distributed under the License is distributed on an "AS IS" BASIS,\E$
-^\Q * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\E$
-^\Q * See the License for the specific language governing permissions and\E$
-^\Q * limitations under the License.\E$
-^\Q */\E$
-^.*$

etc/checkstyle/suppressions.xml

@@ -7,7 +7,6 @@
 
 	<!-- docs -->
 	<suppress files="[\\/]docs[\\/]" checks="Javadoc*"/>
-	<suppress files="[\\/]docs[\\/]" checks="AvoidStaticImport"/>
 	<suppress files="[\\/]docs[\\/]" checks="InnerTypeLast"/>
 
 	<!-- samples -->

gradle.properties

@@ -1,2 +1,2 @@
-springBootVersion=2.1.0.M1
-version=2.1.0.M2
+springBootVersion=2.1.0.M2
+version=2.1.0.M3

gradle/dependency-management.gradle

@@ -1,10 +1,10 @@
 dependencyManagement {
 	imports {
 		mavenBom 'com.fasterxml.jackson:jackson-bom:2.9.6'
-		mavenBom 'io.projectreactor:reactor-bom:Californium-M2'
-		mavenBom 'org.springframework:spring-framework-bom:5.1.0.RC2'
+		mavenBom 'io.projectreactor:reactor-bom:Californium-RC1'
+		mavenBom 'org.springframework:spring-framework-bom:5.1.0.RC3'
 		mavenBom 'org.springframework.data:spring-data-releasetrain:Lovelace-RC2'
-		mavenBom 'org.springframework.security:spring-security-bom:5.1.0.RC1'
+		mavenBom 'org.springframework.security:spring-security-bom:5.1.0.RC2'
 		mavenBom 'org.testcontainers:testcontainers-bom:1.8.3'
 	}
 
@@ -17,16 +17,16 @@ dependencyManagement {
 		dependency 'com.h2database:h2:1.4.197'
 		dependency 'com.microsoft.sqlserver:mssql-jdbc:7.0.0.jre8'
 		dependency 'edu.umd.cs.mtc:multithreadedtc:1.01'
-		dependency 'io.lettuce:lettuce-core:5.1.0.M1'
+		dependency 'io.lettuce:lettuce-core:5.1.0.RC1'
 		dependency 'javax.annotation:javax.annotation-api:1.3.2'
 		dependency 'javax.servlet:javax.servlet-api:4.0.1'
 		dependency 'junit:junit:4.12'
 		dependency 'mysql:mysql-connector-java:8.0.12'
 		dependency 'org.apache.derby:derby:10.14.2.0'
-		dependency 'org.assertj:assertj-core:3.11.0'
+		dependency 'org.assertj:assertj-core:3.11.1'
 		dependency 'org.hsqldb:hsqldb:2.4.1'
-		dependency 'org.mariadb.jdbc:mariadb-java-client:2.2.6'
-		dependency 'org.mockito:mockito-core:2.21.0'
-		dependency 'org.postgresql:postgresql:42.2.4'
+		dependency 'org.mariadb.jdbc:mariadb-java-client:2.3.0'
+		dependency 'org.mockito:mockito-core:2.22.0'
+		dependency 'org.postgresql:postgresql:42.2.5'
 	}
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

samples/gradle/dependency-management.gradle

@@ -1,5 +1,3 @@
-ext['spring.version'] = '5.1.0.RC2'
-
 dependencyManagement {
 	dependencies {
 		dependency 'ch.qos.logback:logback-classic:1.2.3'

settings.gradle

@@ -10,7 +10,7 @@ String rootDirPath = rootDir.absolutePath + File.separator
 buildFiles.each { File buildFile ->
 	if (buildFile.name == 'build.gradle') {
 		String buildFilePath = buildFile.parentFile.absolutePath
-		String projectPath = buildFilePath.replace(rootDirPath, '').replaceAll(File.separator, ':')
+		String projectPath = buildFilePath.replace(rootDirPath, '').replace(File.separator, ':')
 		include projectPath
 	}
 	else {

spring-session-core/src/main/java/org/springframework/session/Session.java

@@ -81,7 +81,7 @@ public interface Session {
 	@SuppressWarnings("unchecked")
 	default <T> T getAttributeOrDefault(String name, T defaultValue) {
 		T result = getAttribute(name);
-		return (result != null ? result : defaultValue);
+		return (result != null) ? result : defaultValue;
 	}
 
 	/**

spring-session-core/src/main/java/org/springframework/session/config/annotation/web/http/SpringHttpSessionConfiguration.java

@@ -110,8 +110,9 @@ public class SpringHttpSessionConfiguration implements ApplicationContextAware {
 
 	@PostConstruct
 	public void init() {
-		CookieSerializer cookieSerializer = (this.cookieSerializer != null
-				? this.cookieSerializer : createDefaultCookieSerializer());
+		CookieSerializer cookieSerializer = (this.cookieSerializer != null)
+				? this.cookieSerializer
+				: createDefaultCookieSerializer();
 		this.defaultHttpSessionIdResolver.setCookieSerializer(cookieSerializer);
 	}
 

spring-session-core/src/main/java/org/springframework/session/web/http/DefaultCookieSerializer.java

@@ -135,9 +135,9 @@ public class DefaultCookieSerializer implements CookieSerializer {
 		int maxAge = getMaxAge(cookieValue);
 		if (maxAge > -1) {
 			sb.append("; Max-Age=").append(cookieValue.getCookieMaxAge());
-			OffsetDateTime expires = (maxAge != 0
+			OffsetDateTime expires = (maxAge != 0)
 					? OffsetDateTime.now().plusSeconds(maxAge)
-					: Instant.EPOCH.atOffset(ZoneOffset.UTC));
+					: Instant.EPOCH.atOffset(ZoneOffset.UTC);
 			sb.append("; Expires=")
 					.append(expires.format(DateTimeFormatter.RFC_1123_DATE_TIME));
 		}

spring-session-core/src/main/java/org/springframework/session/web/http/HeaderHttpSessionIdResolver.java

@@ -98,8 +98,8 @@ public class HeaderHttpSessionIdResolver implements HttpSessionIdResolver {
 	@Override
 	public List<String> resolveSessionIds(HttpServletRequest request) {
 		String headerValue = request.getHeader(this.headerName);
-		return (headerValue != null ? Collections.singletonList(headerValue)
-				: Collections.emptyList());
+		return (headerValue != null) ? Collections.singletonList(headerValue)
+				: Collections.emptyList();
 	}
 
 	@Override

spring-session-core/src/main/java/org/springframework/session/web/http/OnCommittedResponseWrapper.java

@@ -174,11 +174,11 @@ abstract class OnCommittedResponseWrapper extends HttpServletResponseWrapper {
 	}
 
 	private void trackContentLength(byte[] content) {
-		checkContentLength(content != null ? content.length : 0);
+		checkContentLength((content != null) ? content.length : 0);
 	}
 
 	private void trackContentLength(char[] content) {
-		checkContentLength(content != null ? content.length : 0);
+		checkContentLength((content != null) ? content.length : 0);
 	}
 
 	private void trackContentLength(int content) {
@@ -257,13 +257,13 @@ abstract class OnCommittedResponseWrapper extends HttpServletResponseWrapper {
 		}
 
 		@Override
-		public int hashCode() {
-			return this.delegate.hashCode();
+		public boolean equals(Object obj) {
+			return this.delegate.equals(obj);
 		}
 
 		@Override
-		public boolean equals(Object obj) {
-			return this.delegate.equals(obj);
+		public int hashCode() {
+			return this.delegate.hashCode();
 		}
 
 		@Override
@@ -502,13 +502,13 @@ abstract class OnCommittedResponseWrapper extends HttpServletResponseWrapper {
 		}
 
 		@Override
-		public int hashCode() {
-			return this.delegate.hashCode();
+		public boolean equals(Object obj) {
+			return this.delegate.equals(obj);
 		}
 
 		@Override
-		public boolean equals(Object obj) {
-			return this.delegate.equals(obj);
+		public int hashCode() {
+			return this.delegate.hashCode();
 		}
 
 		@Override

spring-session-core/src/main/java/org/springframework/session/web/http/SessionRepositoryFilter.java

@@ -352,7 +352,7 @@ public class SessionRepositoryFilter<S extends Session> extends OncePerRequestFi
 		@Override
 		public String getRequestedSessionId() {
 			S requestedSession = getRequestedSession();
-			return (requestedSession != null ? requestedSession.getId() : null);
+			return (requestedSession != null) ? requestedSession.getId() : null;
 		}
 
 		private S getRequestedSession() {

spring-session-core/src/main/java/org/springframework/session/web/socket/handler/WebSocketRegistryListener.java

@@ -71,9 +71,9 @@ public final class WebSocketRegistryListener
 			SessionDisconnectEvent e = (SessionDisconnectEvent) event;
 			Map<String, Object> sessionAttributes = SimpMessageHeaderAccessor
 					.getSessionAttributes(e.getMessage().getHeaders());
-			String httpSessionId = (sessionAttributes != null
+			String httpSessionId = (sessionAttributes != null)
 					? SessionRepositoryMessageInterceptor.getSessionId(sessionAttributes)
-					: null);
+					: null;
 			afterConnectionClosed(httpSessionId, e.getSessionId());
 		}
 	}

spring-session-core/src/main/java/org/springframework/session/web/socket/server/SessionRepositoryMessageInterceptor.java

@@ -117,8 +117,9 @@ public final class SessionRepositoryMessageInterceptor<S extends Session>
 		}
 		Map<String, Object> sessionHeaders = SimpMessageHeaderAccessor
 				.getSessionAttributes(message.getHeaders());
-		String sessionId = (sessionHeaders != null
-				? (String) sessionHeaders.get(SPRING_SESSION_ID_ATTR_NAME) : null);
+		String sessionId = (sessionHeaders != null)
+				? (String) sessionHeaders.get(SPRING_SESSION_ID_ATTR_NAME)
+				: null;
 		if (sessionId != null) {
 			S session = this.sessionRepository.findById(sessionId);
 			if (session != null) {

spring-session-data-redis/src/integration-test/java/org/springframework/session/data/redis/ReactiveRedisOperationsSessionRepositoryITests.java

@@ -16,6 +16,8 @@
 
 package org.springframework.session.data.redis;
 
+import java.time.Instant;
+
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
@@ -191,6 +193,28 @@ public class ReactiveRedisOperationsSessionRepositoryITests extends AbstractRedi
 		assertThat(this.repository.findById(originalId).block()).isNull();
 	}
 
+	// gh-1111
+	@Test
+	public void changeSessionSaveOldSessionInstance() {
+		ReactiveRedisOperationsSessionRepository.RedisSession toSave = this.repository
+				.createSession().block();
+		String sessionId = toSave.getId();
+
+		this.repository.save(toSave).block();
+
+		ReactiveRedisOperationsSessionRepository.RedisSession session = this.repository
+				.findById(sessionId).block();
+		session.changeSessionId();
+		session.setLastAccessedTime(Instant.now());
+		this.repository.save(session).block();
+
+		toSave.setLastAccessedTime(Instant.now());
+		this.repository.save(toSave).block();
+
+		assertThat(this.repository.findById(sessionId).block()).isNull();
+		assertThat(this.repository.findById(session.getId()).block()).isNotNull();
+	}
+
 	@Configuration
 	@EnableRedisWebSession
 	static class Config extends BaseConfig {

spring-session-data-redis/src/integration-test/java/org/springframework/session/data/redis/RedisOperationsSessionRepositoryITests.java

@@ -581,6 +581,22 @@ public class RedisOperationsSessionRepositoryITests extends AbstractRedisITests
 		assertThat(this.repository.findById(originalId)).isNull();
 	}
 
+	// gh-1137
+	@Test
+	public void changeSessionIdWhenSessionIsDeleted() {
+		RedisSession toSave = this.repository.createSession();
+		String sessionId = toSave.getId();
+		this.repository.save(toSave);
+
+		this.repository.deleteById(sessionId);
+
+		toSave.changeSessionId();
+		this.repository.save(toSave);
+
+		assertThat(this.repository.findById(toSave.getId())).isNull();
+		assertThat(this.repository.findById(sessionId)).isNull();
+	}
+
 	private String getSecurityName() {
 		return this.context.getAuthentication().getName();
 	}

spring-session-data-redis/src/integration-test/java/org/springframework/session/data/redis/taskexecutor/RedisListenerContainerTaskExecutorITests.java

@@ -95,7 +95,7 @@ public class RedisListenerContainerTaskExecutorITests extends AbstractRedisITest
 			synchronized (this.lock) {
 				this.lock.wait(TimeUnit.SECONDS.toMillis(1));
 			}
-			return (this.taskDispatched != null ? this.taskDispatched : Boolean.FALSE);
+			return (this.taskDispatched != null) ? this.taskDispatched : Boolean.FALSE;
 		}
 	}
 

spring-session-data-redis/src/main/java/org/springframework/session/data/redis/ReactiveRedisOperationsSessionRepository.java

@@ -118,6 +118,11 @@ public class ReactiveRedisOperationsSessionRepository implements
 		this.redisFlushMode = redisFlushMode;
 	}
 
+	/**
+	 * Returns the {@link ReactiveRedisOperations} used for sessions.
+	 * @return the {@link ReactiveRedisOperations} used for sessions
+	 * @since 2.1.0
+	 */
 	public ReactiveRedisOperations<String, Object> getSessionRedisOperations() {
 		return this.sessionRedisOperations;
 	}
@@ -138,24 +143,36 @@ public class ReactiveRedisOperationsSessionRepository implements
 
 	@Override
 	public Mono<Void> save(RedisSession session) {
-		return session.saveDelta().and((s) -> {
-			if (session.isNew) {
-				session.setNew(false);
-			}
-
-			s.onComplete();
-		});
+		Mono<Void> result = session.saveChangeSessionId().and(session.saveDelta())
+				.and((s) -> {
+					session.isNew = false;
+					s.onComplete();
+				});
+		if (session.isNew) {
+			return result;
+		}
+		else {
+			String sessionKey = getSessionKey(
+					session.hasChangedSessionId() ? session.originalSessionId
+							: session.getId());
+			return this.sessionRedisOperations.hasKey(sessionKey)
+					.flatMap((exists) -> exists ? result : Mono.empty());
+		}
 	}
 
 	@Override
 	public Mono<RedisSession> findById(String id) {
 		String sessionKey = getSessionKey(id);
 
+		// @formatter:off
 		return this.sessionRedisOperations.opsForHash().entries(sessionKey)
 				.collectMap((e) -> e.getKey().toString(), Map.Entry::getValue)
-				.filter((map) -> !map.isEmpty()).map(new SessionMapper(id))
-				.filter((session) -> !session.isExpired()).map(RedisSession::new)
+				.filter((map) -> !map.isEmpty())
+				.map(new SessionMapper(id))
+				.filter((session) -> !session.isExpired())
+				.map(RedisSession::new)
 				.switchIfEmpty(Mono.defer(() -> deleteById(id).then(Mono.empty())));
+		// @formatter:on
 	}
 
 	@Override
@@ -280,12 +297,8 @@ public class ReactiveRedisOperationsSessionRepository implements
 			return this.cached.isExpired();
 		}
 
-		public void setNew(boolean isNew) {
-			this.isNew = isNew;
-		}
-
-		public boolean isNew() {
-			return this.isNew;
+		private boolean hasChangedSessionId() {
+			return !getId().equals(this.originalSessionId);
 		}
 
 		private void flushImmediateIfNecessary() {
@@ -300,38 +313,35 @@ public class ReactiveRedisOperationsSessionRepository implements
 		}
 
 		private Mono<Void> saveDelta() {
-			String sessionId = getId();
-			Mono<Void> changeSessionId = saveChangeSessionId(sessionId);
-
 			if (this.delta.isEmpty()) {
-				return changeSessionId.and(Mono.empty());
+				return Mono.empty();
 			}
 
-			String sessionKey = getSessionKey(sessionId);
-
+			String sessionKey = getSessionKey(getId());
 			Mono<Boolean> update = ReactiveRedisOperationsSessionRepository.this.sessionRedisOperations
 					.opsForHash().putAll(sessionKey, this.delta);
-
 			Mono<Boolean> setTtl = ReactiveRedisOperationsSessionRepository.this.sessionRedisOperations
 					.expire(sessionKey, getMaxInactiveInterval());
 
-			return changeSessionId.and(update).and(setTtl).and((s) -> {
+			return update.and(setTtl).and((s) -> {
 				this.delta.clear();
 				s.onComplete();
 			}).then();
 		}
 
-		private Mono<Void> saveChangeSessionId(String sessionId) {
-			if (sessionId.equals(this.originalSessionId)) {
+		private Mono<Void> saveChangeSessionId() {
+			if (!hasChangedSessionId()) {
 				return Mono.empty();
 			}
 
+			String sessionId = getId();
+
 			Publisher<Void> replaceSessionId = (s) -> {
 				this.originalSessionId = sessionId;
 				s.onComplete();
 			};
 
-			if (isNew()) {
+			if (this.isNew) {
 				return Mono.from(replaceSessionId);
 			}
 			else {

spring-session-data-redis/src/main/java/org/springframework/session/data/redis/RedisOperationsSessionRepository.java

@@ -28,6 +28,8 @@ import org.apache.commons.logging.LogFactory;
 
 import org.springframework.context.ApplicationEvent;
 import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.core.NestedExceptionUtils;
+import org.springframework.dao.NonTransientDataAccessException;
 import org.springframework.data.redis.connection.Message;
 import org.springframework.data.redis.connection.MessageListener;
 import org.springframework.data.redis.core.BoundHashOperations;
@@ -375,6 +377,11 @@ public class RedisOperationsSessionRepository implements
 		this.redisFlushMode = redisFlushMode;
 	}
 
+	/**
+	 * Returns the {@link RedisOperations} used for sessions.
+	 * @return the {@link RedisOperations} used for sessions
+	 * @since 2.0.0
+	 */
 	public RedisOperations<Object, Object> getSessionRedisOperations() {
 		return this.sessionRedisOperations;
 	}
@@ -797,9 +804,10 @@ public class RedisOperationsSessionRepository implements
 
 			this.delta = new HashMap<>(this.delta.size());
 
-			Long originalExpiration = (this.originalLastAccessTime != null
-					? this.originalLastAccessTime.plus(getMaxInactiveInterval()).toEpochMilli()
-					: null);
+			Long originalExpiration = (this.originalLastAccessTime != null)
+					? this.originalLastAccessTime.plus(getMaxInactiveInterval())
+							.toEpochMilli()
+					: null;
 			RedisOperationsSessionRepository.this.expirationPolicy
 					.onExpirationUpdated(originalExpiration, this);
 		}
@@ -813,8 +821,16 @@ public class RedisOperationsSessionRepository implements
 							originalSessionIdKey, sessionIdKey);
 					String originalExpiredKey = getExpiredKey(this.originalSessionId);
 					String expiredKey = getExpiredKey(sessionId);
-					RedisOperationsSessionRepository.this.sessionRedisOperations.rename(
-							originalExpiredKey, expiredKey);
+					try {
+						RedisOperationsSessionRepository.this.sessionRedisOperations.rename(
+								originalExpiredKey, expiredKey);
+					}
+					catch (NonTransientDataAccessException ex) {
+						if (!"ERR no such key".equals(NestedExceptionUtils
+								.getMostSpecificCause(ex).getMessage())) {
+							throw ex;
+						}
+					}
 				}
 				this.originalSessionId = sessionId;
 			}

spring-session-data-redis/src/main/java/org/springframework/session/data/redis/config/annotation/SpringSessionRedisOperations.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2014-2017 the original author or authors.
+ * Copyright 2014-2018 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.
@@ -23,14 +23,14 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 import org.springframework.beans.factory.annotation.Value;
-import org.springframework.data.redis.core.RedisOperations;
-import org.springframework.session.data.redis.RedisOperationsSessionRepository;
 
 /**
- * Annotation used to inject the {@link RedisOperations} instance used by Spring Session's
- * {@link RedisOperationsSessionRepository}.
+ * Annotation used to inject the Redis accessor used by Spring Session's Redis session
+ * repository.
  *
  * @author Vedran Pavic
+ * @see org.springframework.session.data.redis.RedisOperationsSessionRepository#getSessionRedisOperations()
+ * @see org.springframework.session.data.redis.ReactiveRedisOperationsSessionRepository#getSessionRedisOperations()
  * @since 2.0.0
  */
 @Target({ ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER,

spring-session-data-redis/src/main/java/org/springframework/session/data/redis/config/annotation/web/server/RedisWebSessionConfiguration.java

@@ -144,9 +144,9 @@ public class RedisWebSessionConfiguration extends SpringWebSessionConfiguration
 
 	private ReactiveRedisTemplate<String, Object> createReactiveRedisTemplate() {
 		RedisSerializer<String> keySerializer = new StringRedisSerializer();
-		RedisSerializer<Object> defaultSerializer = (this.defaultRedisSerializer != null
+		RedisSerializer<Object> defaultSerializer = (this.defaultRedisSerializer != null)
 				? this.defaultRedisSerializer
-				: new JdkSerializationRedisSerializer(this.classLoader));
+				: new JdkSerializationRedisSerializer(this.classLoader);
 		RedisSerializationContext<String, Object> serializationContext = RedisSerializationContext
 				.<String, Object>newSerializationContext(defaultSerializer)
 				.key(keySerializer).hashKey(keySerializer).build();

spring-session-data-redis/src/test/java/org/springframework/session/data/redis/ReactiveRedisOperationsSessionRepositoryTests.java

@@ -183,6 +183,7 @@ public class ReactiveRedisOperationsSessionRepositoryTests {
 
 	@Test
 	public void saveSessionNothingChanged() {
+		given(this.redisOperations.hasKey(anyString())).willReturn(Mono.just(true));
 		given(this.redisOperations.expire(anyString(), any()))
 				.willReturn(Mono.just(true));
 
@@ -191,12 +192,14 @@ public class ReactiveRedisOperationsSessionRepositoryTests {
 
 		StepVerifier.create(this.repository.save(session)).verifyComplete();
 
+		verify(this.redisOperations).hasKey(anyString());
 		verifyZeroInteractions(this.redisOperations);
 		verifyZeroInteractions(this.hashOperations);
 	}
 
 	@Test
 	public void saveLastAccessChanged() {
+		given(this.redisOperations.hasKey(anyString())).willReturn(Mono.just(true));
 		given(this.redisOperations.opsForHash()).willReturn(this.hashOperations);
 		given(this.hashOperations.putAll(anyString(), any())).willReturn(Mono.just(true));
 		given(this.redisOperations.expire(anyString(), any()))
@@ -206,6 +209,7 @@ public class ReactiveRedisOperationsSessionRepositoryTests {
 		session.setLastAccessedTime(Instant.ofEpochMilli(12345678L));
 		Mono.just(session).subscribe(this.repository::save);
 
+		verify(this.redisOperations).hasKey(anyString());
 		verify(this.redisOperations).opsForHash();
 		verify(this.hashOperations).putAll(anyString(), this.delta.capture());
 		verify(this.redisOperations).expire(anyString(), any());
@@ -219,6 +223,7 @@ public class ReactiveRedisOperationsSessionRepositoryTests {
 
 	@Test
 	public void saveSetAttribute() {
+		given(this.redisOperations.hasKey(anyString())).willReturn(Mono.just(true));
 		given(this.redisOperations.opsForHash()).willReturn(this.hashOperations);
 		given(this.hashOperations.putAll(anyString(), any())).willReturn(Mono.just(true));
 		given(this.redisOperations.expire(anyString(), any()))
@@ -229,6 +234,7 @@ public class ReactiveRedisOperationsSessionRepositoryTests {
 		session.setAttribute(attrName, "attrValue");
 		Mono.just(session).subscribe(this.repository::save);
 
+		verify(this.redisOperations).hasKey(anyString());
 		verify(this.redisOperations).opsForHash();
 		verify(this.hashOperations).putAll(anyString(), this.delta.capture());
 		verify(this.redisOperations).expire(anyString(), any());
@@ -242,6 +248,7 @@ public class ReactiveRedisOperationsSessionRepositoryTests {
 
 	@Test
 	public void saveRemoveAttribute() {
+		given(this.redisOperations.hasKey(anyString())).willReturn(Mono.just(true));
 		given(this.redisOperations.opsForHash()).willReturn(this.hashOperations);
 		given(this.hashOperations.putAll(anyString(), any())).willReturn(Mono.just(true));
 		given(this.redisOperations.expire(anyString(), any()))
@@ -252,6 +259,7 @@ public class ReactiveRedisOperationsSessionRepositoryTests {
 		session.removeAttribute(attrName);
 		Mono.just(session).subscribe(this.repository::save);
 
+		verify(this.redisOperations).hasKey(anyString());
 		verify(this.redisOperations).opsForHash();
 		verify(this.hashOperations).putAll(anyString(), this.delta.capture());
 		verify(this.redisOperations).expire(anyString(), any());

spring-session-hazelcast/src/integration-test/java/org/springframework/session/hazelcast/HazelcastClientRepositoryITests.java

@@ -48,7 +48,7 @@ import org.springframework.test.context.web.WebAppConfiguration;
 public class HazelcastClientRepositoryITests extends AbstractHazelcastRepositoryITests {
 
 	private static GenericContainer container = new GenericContainer<>(
-			"hazelcast/hazelcast:3.10.3")
+			"hazelcast/hazelcast:3.10.4")
 					.withExposedPorts(5701)
 					.withEnv("JAVA_OPTS",
 							"-Dhazelcast.config=/opt/hazelcast/config_ext/hazelcast.xml")

spring-session-jdbc/src/main/java/org/springframework/session/jdbc/JdbcOperationsSessionRepository.java

@@ -765,23 +765,23 @@ public class JdbcOperationsSessionRepository implements
 			}
 			if (attributeExists) {
 				if (attributeRemoved) {
-					this.delta.merge(attributeName, DeltaValue.REMOVED,
-							(oldDeltaValue, deltaValue) -> (oldDeltaValue == DeltaValue.ADDED
-									? null
-									: deltaValue));
+					this.delta.merge(attributeName, DeltaValue.REMOVED, (oldDeltaValue,
+							deltaValue) -> (oldDeltaValue == DeltaValue.ADDED) ? null
+									: deltaValue);
 				}
 				else {
 					this.delta.merge(attributeName, DeltaValue.UPDATED,
-							(oldDeltaValue, deltaValue) -> (oldDeltaValue == DeltaValue.ADDED
-									? oldDeltaValue
-									: deltaValue));
+							(oldDeltaValue,
+									deltaValue) -> (oldDeltaValue == DeltaValue.ADDED)
+											? oldDeltaValue
+											: deltaValue);
 				}
 			}
 			else {
 				this.delta.merge(attributeName, DeltaValue.ADDED,
-						(oldDeltaValue, deltaValue) -> (oldDeltaValue == DeltaValue.ADDED
+						(oldDeltaValue, deltaValue) -> (oldDeltaValue == DeltaValue.ADDED)
 								? oldDeltaValue
-								: DeltaValue.UPDATED));
+								: DeltaValue.UPDATED);
 			}
 			this.delegate.setAttribute(attributeName, attributeValue);
 			if (PRINCIPAL_NAME_INDEX_NAME.equals(attributeName) ||