refactor: replace Redis references with Valkey in tests and cache modules

Updated test cases in `ValkeyEventStoreTest` and cache implementation in `ValkeyDistributedCache` to fully transition from Redis to Valkey. Adjusted configurations, templates, connection handling, and exception management to reflect Valkey-specific behavior and APIs.

backend/infrastructure/cache/valkey-cache/build.gradle.kts

@@ -28,6 +28,13 @@ dependencies {
   // OPTIMIERUNG: Verwendung des `valkey-cache`-Bundles aus libs.versions.toml.
   // Dieses Bundle enthält Spring Data Valkey, Lettuce und Jackson-Module.
   implementation(libs.bundles.valkey.cache)
+  // Benötigt für Lettuce-basierten Valkey-Client (LettuceConnectionFactory)
+  implementation(libs.lettuce.core)
+  // Für Boot-Autoconfiguration-Annotations wie @ConfigurationProperties,
+  // @EnableConfigurationProperties und @ConditionalOnMissingBean
+  implementation("org.springframework.boot:spring-boot-autoconfigure")
+  // Optional, generiert Metadata f. @ConfigurationProperties (zur IDE-Unterstützung)
+  compileOnly("org.springframework.boot:spring-boot-configuration-processor")
   // Stellt alle Test-Abhängigkeiten gebündelt bereit.
   testImplementation(projects.platform.platformTesting)
   testImplementation(libs.bundles.testing.jvm)

backend/infrastructure/cache/valkey-cache/src/main/kotlin/at/mocode/infrastructure/cache/valkey/ValkeyConfiguration.kt

@@ -3,18 +3,18 @@ package at.mocode.infrastructure.cache.valkey
 import at.mocode.infrastructure.cache.api.CacheConfiguration
 import at.mocode.infrastructure.cache.api.CacheSerializer
 import at.mocode.infrastructure.cache.api.DefaultCacheConfiguration
+import io.valkey.springframework.data.valkey.connection.ValkeyConnectionFactory
+import io.valkey.springframework.data.valkey.connection.ValkeyPassword
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.ValkeyTemplate
+import io.valkey.springframework.data.valkey.serializer.StringValkeySerializer
 import org.springframework.beans.factory.annotation.Qualifier
-import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
 import org.springframework.boot.context.properties.ConfigurationProperties
 import org.springframework.boot.context.properties.EnableConfigurationProperties
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
-import org.springframework.data.redis.connection.RedisConnectionFactory
-import org.springframework.data.redis.connection.RedisPassword
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.RedisTemplate
-import org.springframework.data.redis.serializer.StringRedisSerializer
 
 /**
  * Valkey connection properties.
@@ -46,11 +46,11 @@ class ValkeyConfiguration {
      * @return Valkey connection factory
      */
     @Bean
-    fun valkeyConnectionFactory(properties: ValkeyProperties): RedisConnectionFactory {
+    fun valkeyConnectionFactory(properties: ValkeyProperties): ValkeyConnectionFactory {
-        val config = RedisStandaloneConfiguration().apply {
+        val config = ValkeyStandaloneConfiguration().apply {
             hostName = properties.host
             port = properties.port
-            properties.password?.let { password = RedisPassword.of(it) }
+            properties.password?.let { password = ValkeyPassword.of(it) }
             database = properties.database
         }
 
@@ -68,11 +68,11 @@ class ValkeyConfiguration {
      */
     @Bean
     fun valkeyTemplate(
-        @Qualifier("valkeyConnectionFactory") connectionFactory: RedisConnectionFactory
+        @Qualifier("valkeyConnectionFactory") connectionFactory: ValkeyConnectionFactory
-    ): RedisTemplate<String, ByteArray> {
+    ): ValkeyTemplate<String, ByteArray> {
-        return RedisTemplate<String, ByteArray>().apply {
+        return ValkeyTemplate<String, ByteArray>().apply {
             setConnectionFactory(connectionFactory)
-            keySerializer = StringRedisSerializer()
+            keySerializer = StringValkeySerializer()
             // Use default serializer for values (byte arrays)
             afterPropertiesSet()
         }

backend/infrastructure/cache/valkey-cache/src/main/kotlin/at/mocode/infrastructure/cache/valkey/ValkeyDistributedCache.kt

@@ -7,9 +7,9 @@ import at.mocode.infrastructure.cache.api.ConnectionState
 import at.mocode.infrastructure.cache.api.ConnectionStateListener
 import at.mocode.infrastructure.cache.api.ConnectionStatusTracker
 import at.mocode.infrastructure.cache.api.DistributedCache
+import io.valkey.springframework.data.valkey.ValkeyConnectionFailureException
+import io.valkey.springframework.data.valkey.core.ValkeyTemplate
 import org.slf4j.LoggerFactory
-import org.springframework.data.redis.RedisConnectionFailureException
-import org.springframework.data.redis.core.RedisTemplate
 import org.springframework.scheduling.annotation.Scheduled
 import java.util.concurrent.ConcurrentHashMap
 import java.util.concurrent.CopyOnWriteArrayList
@@ -21,7 +21,7 @@ import kotlin.time.ExperimentalTime
 
 @OptIn(ExperimentalTime::class)
 class ValkeyDistributedCache(
-  private val valkeyTemplate: RedisTemplate<String, ByteArray>,
+  private val valkeyTemplate: ValkeyTemplate<String, ByteArray>,
   private val serializer: CacheSerializer,
   private val config: CacheConfiguration
 ) : DistributedCache, ConnectionStatusTracker {
@@ -86,7 +86,7 @@ class ValkeyDistributedCache(
 
       trackOperation(true)
       return entry.value
-        } catch (e: RedisConnectionFailureException) {
+    } catch (e: ValkeyConnectionFailureException) {
       handleConnectionFailure(e)
       trackOperation(false)
       return null
@@ -121,13 +121,13 @@ class ValkeyDistributedCache(
       val bytes = serializer.serializeEntry(entry)
       val effectiveTtl = ttl ?: config.defaultTtl
       if (effectiveTtl != null) {
-                // KORREKTUR: Konvertierung zu java.time.Duration für RedisTemplate
+        // KORREKTUR: Konvertierung zu java.time.Duration für ValkeyTemplate
         valkeyTemplate.opsForValue().set(prefixedKey, bytes, effectiveTtl.toJavaDuration())
       } else {
         valkeyTemplate.opsForValue().set(prefixedKey, bytes)
       }
       trackOperation(true)
-        } catch (e: RedisConnectionFailureException) {
+    } catch (e: ValkeyConnectionFailureException) {
       handleConnectionFailure(e)
       markDirty(key)
       trackOperation(false)
@@ -153,7 +153,7 @@ class ValkeyDistributedCache(
     // Try to delete from Valkey
     try {
       valkeyTemplate.delete(prefixedKey)
-        } catch (e: RedisConnectionFailureException) {
+    } catch (e: ValkeyConnectionFailureException) {
       handleConnectionFailure(e)
       markDirty(key)
     } catch (e: Exception) {
@@ -183,7 +183,7 @@ class ValkeyDistributedCache(
     // Check Valkey
     try {
       return valkeyTemplate.hasKey(prefixedKey) ?: false
-        } catch (e: RedisConnectionFailureException) {
+    } catch (e: ValkeyConnectionFailureException) {
       handleConnectionFailure(e)
       return false
     } catch (e: Exception) {
@@ -243,7 +243,7 @@ class ValkeyDistributedCache(
           }
         }
       }
-        } catch (e: RedisConnectionFailureException) {
+    } catch (e: ValkeyConnectionFailureException) {
       handleConnectionFailure(e)
     } catch (e: Exception) {
       logger.error("Error getting multiple values from Valkey", e)
@@ -286,7 +286,7 @@ class ValkeyDistributedCache(
           null
         }
       }
-        } catch (e: RedisConnectionFailureException) {
+    } catch (e: ValkeyConnectionFailureException) {
       handleConnectionFailure(e)
       entries.keys.forEach { markDirty(it) }
     } catch (e: Exception) {
@@ -310,7 +310,7 @@ class ValkeyDistributedCache(
     // Try to delete from Valkey
     try {
       valkeyTemplate.delete(prefixedKeys)
-        } catch (e: RedisConnectionFailureException) {
+    } catch (e: ValkeyConnectionFailureException) {
       handleConnectionFailure(e)
       keys.forEach { markDirty(it) }
     } catch (e: Exception) {
@@ -402,7 +402,7 @@ class ValkeyDistributedCache(
       if (keys != null && keys.isNotEmpty()) {
         valkeyTemplate.delete(keys)
       }
-        } catch (e: RedisConnectionFailureException) {
+    } catch (e: ValkeyConnectionFailureException) {
       handleConnectionFailure(e)
     } catch (e: Exception) {
       logger.error("Error clearing Valkey cache", e)
@@ -565,7 +565,7 @@ class ValkeyDistributedCache(
   /**
    * Loggt Performance-Metriken (periodisch aufgerufen).
    */
-    @Scheduled(fixedDelayString = "\${valkey.metrics-log-interval:300000}")
+  @Scheduled(fixedDelayString = $$"${valkey.metrics-log-interval:300000}")
   fun logPerformanceMetrics() {
     val metrics = getPerformanceMetrics()
     logger.info("Cache performance metrics: $metrics")

backend/infrastructure/cache/valkey-cache/src/test/kotlin/at/mocode/infrastructure/cache/valkey/ValkeyDistributedCacheConfigurationTest.kt

@@ -5,12 +5,12 @@ import at.mocode.infrastructure.cache.api.DefaultCacheConfiguration
 import at.mocode.infrastructure.cache.api.get
 import at.mocode.infrastructure.cache.api.multiGet
 import io.github.oshai.kotlinlogging.KotlinLogging
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.ValkeyTemplate
+import io.valkey.springframework.data.valkey.serializer.StringValkeySerializer
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.RedisTemplate
-import org.springframework.data.redis.serializer.StringRedisSerializer
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -37,14 +37,14 @@ class ValkeyDistributedCacheConfigurationTest {
 
     @Container
     val valkeyContainer = GenericContainer<Nothing>(
-      DockerImageName.parse("valkey/valkey:9-alpine")
+      DockerImageName.parse("valkey/valkey:8.0.2-alpine")
-        .asCompatibleSubstituteFor("valkey")
+        .asCompatibleSubstituteFor("redis")
     ).apply {
       withExposedPorts(6379)
     }
   }
 
-  private lateinit var valkeyTemplate: RedisTemplate<String, ByteArray>
+  private lateinit var valkeyTemplate: ValkeyTemplate<String, ByteArray>
   private lateinit var serializer: CacheSerializer
 
   @BeforeEach
@@ -52,13 +52,13 @@ class ValkeyDistributedCacheConfigurationTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-    valkeyTemplate = RedisTemplate<String, ByteArray>().apply {
+    valkeyTemplate = ValkeyTemplate<String, ByteArray>().apply {
       setConnectionFactory(connectionFactory)
-      keySerializer = StringRedisSerializer()
+      keySerializer = StringValkeySerializer()
       afterPropertiesSet()
     }
 

backend/infrastructure/cache/valkey-cache/src/test/kotlin/at/mocode/infrastructure/cache/valkey/ValkeyDistributedCacheEdgeCasesTest.kt

@@ -2,12 +2,12 @@ package at.mocode.infrastructure.cache.valkey
 
 import at.mocode.infrastructure.cache.api.*
 import io.github.oshai.kotlinlogging.KotlinLogging
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.ValkeyTemplate
+import io.valkey.springframework.data.valkey.serializer.StringValkeySerializer
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.RedisTemplate
-import org.springframework.data.redis.serializer.StringRedisSerializer
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -29,14 +29,14 @@ class ValkeyDistributedCacheEdgeCasesTest {
 
     @Container
     val valkeyContainer = GenericContainer<Nothing>(
-      DockerImageName.parse("valkey/valkey:9-alpine")
+      DockerImageName.parse("valkey/valkey:8.0.2-alpine")
-        .asCompatibleSubstituteFor("valkey")
+        .asCompatibleSubstituteFor("redis")
     ).apply {
       withExposedPorts(6379)
     }
   }
 
-  private lateinit var valkeyTemplate: RedisTemplate<String, ByteArray>
+  private lateinit var valkeyTemplate: ValkeyTemplate<String, ByteArray>
   private lateinit var serializer: CacheSerializer
   private lateinit var config: CacheConfiguration
   private lateinit var cache: ValkeyDistributedCache
@@ -46,13 +46,13 @@ class ValkeyDistributedCacheEdgeCasesTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-    valkeyTemplate = RedisTemplate<String, ByteArray>().apply {
+    valkeyTemplate = ValkeyTemplate<String, ByteArray>().apply {
       setConnectionFactory(connectionFactory)
-      keySerializer = StringRedisSerializer()
+      keySerializer = StringValkeySerializer()
       afterPropertiesSet()
     }
 

backend/infrastructure/cache/valkey-cache/src/test/kotlin/at/mocode/infrastructure/cache/valkey/ValkeyDistributedCacheIntegrationTest.kt

@@ -2,14 +2,14 @@ package at.mocode.infrastructure.cache.valkey
 
 import at.mocode.infrastructure.cache.api.*
 import io.github.oshai.kotlinlogging.KotlinLogging
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.ValkeyTemplate
+import io.valkey.springframework.data.valkey.serializer.StringValkeySerializer
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.runBlocking
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.RedisTemplate
-import org.springframework.data.redis.serializer.StringRedisSerializer
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -36,14 +36,14 @@ class ValkeyDistributedCacheIntegrationTest {
 
     @Container
     val valkeyContainer = GenericContainer<Nothing>(
-      DockerImageName.parse("valkey/valkey:9-alpine")
+      DockerImageName.parse("valkey/valkey:8.0.2-alpine")
-        .asCompatibleSubstituteFor("valkey")
+        .asCompatibleSubstituteFor("redis")
     ).apply {
       withExposedPorts(6379)
     }
   }
 
-  private lateinit var valkeyTemplate: RedisTemplate<String, ByteArray>
+  private lateinit var valkeyTemplate: ValkeyTemplate<String, ByteArray>
   private lateinit var serializer: CacheSerializer
   private lateinit var config: CacheConfiguration
 
@@ -52,13 +52,13 @@ class ValkeyDistributedCacheIntegrationTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-    valkeyTemplate = RedisTemplate<String, ByteArray>().apply {
+    valkeyTemplate = ValkeyTemplate<String, ByteArray>().apply {
       setConnectionFactory(connectionFactory)
-      keySerializer = StringRedisSerializer()
+      keySerializer = StringValkeySerializer()
       afterPropertiesSet()
     }
 

backend/infrastructure/cache/valkey-cache/src/test/kotlin/at/mocode/infrastructure/cache/valkey/ValkeyDistributedCachePerformanceTest.kt

@@ -2,15 +2,15 @@ package at.mocode.infrastructure.cache.valkey
 
 import at.mocode.infrastructure.cache.api.*
 import io.github.oshai.kotlinlogging.KotlinLogging
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.ValkeyTemplate
+import io.valkey.springframework.data.valkey.serializer.StringValkeySerializer
 import kotlinx.coroutines.joinAll
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.test.runTest
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.RedisTemplate
-import org.springframework.data.redis.serializer.StringRedisSerializer
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -32,14 +32,14 @@ class ValkeyDistributedCachePerformanceTest {
 
     @Container
     val valkeyContainer = GenericContainer<Nothing>(
-      DockerImageName.parse("valkey/valkey:9-alpine")
+      DockerImageName.parse("valkey/valkey:8.0.2-alpine")
-        .asCompatibleSubstituteFor("valkey")
+        .asCompatibleSubstituteFor("redis")
     ).apply {
       withExposedPorts(6379)
     }
   }
 
-  private lateinit var valkeyTemplate: RedisTemplate<String, ByteArray>
+  private lateinit var valkeyTemplate: ValkeyTemplate<String, ByteArray>
   private lateinit var serializer: CacheSerializer
   private lateinit var config: CacheConfiguration
   private lateinit var cache: ValkeyDistributedCache
@@ -49,13 +49,13 @@ class ValkeyDistributedCachePerformanceTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-    valkeyTemplate = RedisTemplate<String, ByteArray>().apply {
+    valkeyTemplate = ValkeyTemplate<String, ByteArray>().apply {
       setConnectionFactory(connectionFactory)
-      keySerializer = StringRedisSerializer()
+      keySerializer = StringValkeySerializer()
       afterPropertiesSet()
     }
 

backend/infrastructure/cache/valkey-cache/src/test/kotlin/at/mocode/infrastructure/cache/valkey/ValkeyDistributedCacheResilienceTest.kt

@@ -4,16 +4,16 @@ import at.mocode.infrastructure.cache.api.*
 import io.github.oshai.kotlinlogging.KotlinLogging
 import io.mockk.every
 import io.mockk.mockk
+import io.valkey.springframework.data.valkey.ValkeyConnectionFailureException
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.ValkeyTemplate
+import io.valkey.springframework.data.valkey.core.ValueOperations
+import io.valkey.springframework.data.valkey.serializer.StringValkeySerializer
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.runBlocking
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
-import org.springframework.data.redis.RedisConnectionFailureException
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.RedisTemplate
-import org.springframework.data.redis.core.ValueOperations
-import org.springframework.data.redis.serializer.StringRedisSerializer
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -38,14 +38,14 @@ class ValkeyDistributedCacheResilienceTest {
 
     @Container
     val valkeyContainer = GenericContainer<Nothing>(
-      DockerImageName.parse("valkey/valkey:9-alpine")
+      DockerImageName.parse("valkey/valkey:8.0.2-alpine")
-        .asCompatibleSubstituteFor("valkey")
+        .asCompatibleSubstituteFor("redis")
     ).apply {
       withExposedPorts(6379)
     }
   }
 
-  private lateinit var valkeyTemplate: RedisTemplate<String, ByteArray>
+  private lateinit var valkeyTemplate: ValkeyTemplate<String, ByteArray>
   private lateinit var serializer: CacheSerializer
   private lateinit var config: CacheConfiguration
 
@@ -54,13 +54,13 @@ class ValkeyDistributedCacheResilienceTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-    valkeyTemplate = RedisTemplate<String, ByteArray>().apply {
+    valkeyTemplate = ValkeyTemplate<String, ByteArray>().apply {
       setConnectionFactory(connectionFactory)
-      keySerializer = StringRedisSerializer()
+      keySerializer = StringValkeySerializer()
       afterPropertiesSet()
     }
 
@@ -76,7 +76,7 @@ class ValkeyDistributedCacheResilienceTest {
   fun `test connection timeout scenarios`() = runBlocking {
     logger.info { "Testing connection timeout scenarios" }
 
-    val mockTemplate = mockk<RedisTemplate<String, ByteArray>>()
+    val mockTemplate = mockk<ValkeyTemplate<String, ByteArray>>()
     val mockValueOps = mockk<ValueOperations<String, ByteArray>>()
 
     every { mockTemplate.opsForValue() } returns mockValueOps
@@ -117,7 +117,7 @@ class ValkeyDistributedCacheResilienceTest {
   fun `test partial valkey failures`() {
     logger.info { "Testing partial Valkey failures" }
 
-    val mockTemplate = mockk<RedisTemplate<String, ByteArray>>()
+    val mockTemplate = mockk<ValkeyTemplate<String, ByteArray>>()
     val mockValueOps = mockk<ValueOperations<String, ByteArray>>()
 
     every { mockTemplate.opsForValue() } returns mockValueOps
@@ -128,14 +128,14 @@ class ValkeyDistributedCacheResilienceTest {
     // Simulate intermittent connection failures (fail every 3rd operation)
     every { mockValueOps.get(any()) } answers {
       if (failureCounter.incrementAndGet() % 3 == 0) {
-        throw RedisConnectionFailureException("Intermittent failure")
+        throw ValkeyConnectionFailureException("Intermittent failure") as Throwable
       }
       serializer.serializeEntry(CacheEntry("test", "value"))
     }
 
     every { mockValueOps.set(any<String>(), any<ByteArray>(), any<JavaDuration>()) } answers {
       if (failureCounter.incrementAndGet() % 3 == 0) {
-        throw RedisConnectionFailureException("Intermittent failure")
+        throw ValkeyConnectionFailureException("Intermittent failure")
       }
     }
 
@@ -197,20 +197,20 @@ class ValkeyDistributedCacheResilienceTest {
 
     // Phase 2: Simulate network partition by creating a new cache with a broken connection
     logger.info { "Phase 2: Simulating network partition" }
-    val mockTemplate = mockk<RedisTemplate<String, ByteArray>>()
+    val mockTemplate = mockk<ValkeyTemplate<String, ByteArray>>()
     val mockValueOps = mockk<ValueOperations<String, ByteArray>>()
 
     every { mockTemplate.opsForValue() } returns mockValueOps
-    every { mockValueOps.get(any()) } throws RedisConnectionFailureException("Network partition")
+    every { mockValueOps.get(any()) } throws ValkeyConnectionFailureException("Network partition")
     every {
       mockValueOps.set(
         any<String>(),
         any<ByteArray>(),
         any<JavaDuration>()
       )
-    } throws RedisConnectionFailureException("Network partition")
+    } throws ValkeyConnectionFailureException("Network partition")
-    every { mockTemplate.delete(any<String>()) } throws RedisConnectionFailureException("Network partition")
+    every { mockTemplate.delete(any<String>()) } throws ValkeyConnectionFailureException("Network partition")
-    every { mockTemplate.hasKey(any()) } throws RedisConnectionFailureException("Network partition")
+    every { mockTemplate.hasKey(any()) } throws ValkeyConnectionFailureException("Network partition")
 
     val partitionedCache = ValkeyDistributedCache(mockTemplate, serializer, config)
 
@@ -235,7 +235,7 @@ class ValkeyDistributedCacheResilienceTest {
   fun `test reconnection and synchronization after network issues`() {
     logger.info { "Testing reconnection and synchronization" }
 
-    val mockTemplate = mockk<RedisTemplate<String, ByteArray>>()
+    val mockTemplate = mockk<ValkeyTemplate<String, ByteArray>>()
     val mockValueOps = mockk<ValueOperations<String, ByteArray>>()
 
     every { mockTemplate.opsForValue() } returns mockValueOps
@@ -243,15 +243,15 @@ class ValkeyDistributedCacheResilienceTest {
     val reconnectingCache = ValkeyDistributedCache(mockTemplate, serializer, config)
 
     // Phase 1: Simulate disconnection
-    every { mockValueOps.get(any()) } throws RedisConnectionFailureException("Disconnected")
+    every { mockValueOps.get(any()) } throws ValkeyConnectionFailureException("Disconnected")
     every {
       mockValueOps.set(
         any<String>(),
         any<ByteArray>(),
         any<JavaDuration>()
       )
-    } throws RedisConnectionFailureException("Disconnected")
+    } throws ValkeyConnectionFailureException("Disconnected")
-    every { mockTemplate.hasKey(any()) } throws RedisConnectionFailureException("Disconnected")
+    every { mockTemplate.hasKey(any()) } throws ValkeyConnectionFailureException("Disconnected")
 
     reconnectingCache.set("reconnect-test-1", "value-1")
     reconnectingCache.set("reconnect-test-2", "value-2")

backend/infrastructure/cache/valkey-cache/src/test/kotlin/at/mocode/infrastructure/cache/valkey/ValkeyDistributedCacheTest.kt

@@ -5,15 +5,15 @@ import io.github.oshai.kotlinlogging.KotlinLogging
 import io.mockk.every
 import io.mockk.mockk
 import io.mockk.verify
+import io.valkey.springframework.data.valkey.ValkeyConnectionFailureException
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.ValkeyTemplate
+import io.valkey.springframework.data.valkey.core.ValueOperations
+import io.valkey.springframework.data.valkey.serializer.StringValkeySerializer
 import org.junit.jupiter.api.AfterEach
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
-import org.springframework.data.redis.RedisConnectionFailureException
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.RedisTemplate
-import org.springframework.data.redis.core.ValueOperations
-import org.springframework.data.redis.serializer.StringRedisSerializer
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -31,14 +31,14 @@ class ValkeyDistributedCacheTest {
 
     @Container
     val valkeyContainer = GenericContainer<Nothing>(
-      DockerImageName.parse("valkey/valkey:9-alpine")
+      DockerImageName.parse("valkey/valkey:8.0.2-alpine")
-        .asCompatibleSubstituteFor("valkey")
+        .asCompatibleSubstituteFor("redis")
     ).apply {
       withExposedPorts(6379)
     }
   }
 
-  private lateinit var valkeyTemplate: RedisTemplate<String, ByteArray>
+  private lateinit var valkeyTemplate: ValkeyTemplate<String, ByteArray>
   private lateinit var serializer: CacheSerializer
   private lateinit var config: CacheConfiguration
   private lateinit var cache: ValkeyDistributedCache
@@ -48,13 +48,13 @@ class ValkeyDistributedCacheTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-    valkeyTemplate = RedisTemplate<String, ByteArray>().apply {
+    valkeyTemplate = ValkeyTemplate<String, ByteArray>().apply {
       setConnectionFactory(connectionFactory)
-      keySerializer = StringRedisSerializer()
+      keySerializer = StringValkeySerializer()
       afterPropertiesSet()
     }
 
@@ -131,7 +131,7 @@ class ValkeyDistributedCacheTest {
   @Test
   fun `should handle offline mode and synchronize correctly`() {
     // Arrange
-    val mockTemplate = mockk<RedisTemplate<String, ByteArray>>(relaxed = true)
+    val mockTemplate = mockk<ValkeyTemplate<String, ByteArray>>(relaxed = true)
     val mockValueOps = mockk<ValueOperations<String, ByteArray>>(relaxed = true)
     every { mockTemplate.opsForValue() } returns mockValueOps
 
@@ -157,10 +157,15 @@ class ValkeyDistributedCacheTest {
         any<ByteArray>(),
         any<JavaDuration>()
       )
-    } throws RedisConnectionFailureException("Valkey is down")
+    } throws ValkeyConnectionFailureException("Valkey is down")
-    every { mockValueOps.set(any<String>(), any<ByteArray>()) } throws RedisConnectionFailureException("Valkey is down")
+    every {
+      mockValueOps.set(
+        any<String>(),
+        any<ByteArray>()
+      )
+    } throws ValkeyConnectionFailureException("Valkey is down")
 
-    every { mockTemplate.delete(any<String>()) } throws RedisConnectionFailureException("Valkey is down")
+    every { mockTemplate.delete(any<String>()) } throws ValkeyConnectionFailureException("Valkey is down")
 
     offlineCache.set("key2", "offline-value")
     offlineCache.delete("key1")
@@ -246,13 +251,13 @@ class ValkeyDistributedCacheTest {
   @Test
   fun `test handling valkey connection failures`() {
     // Create a mock ValkeyTemplate and ValueOperations
-    val mockTemplate = mockk<RedisTemplate<String, ByteArray>>()
+    val mockTemplate = mockk<ValkeyTemplate<String, ByteArray>>()
     val mockValueOps = mockk<ValueOperations<String, ByteArray>>()
 
     // Configure the mock to throw connection failure
     every { mockTemplate.opsForValue() } returns mockValueOps
-    every { mockValueOps.get(any()) } throws RedisConnectionFailureException("Test connection failure")
+    every { mockValueOps.get(any()) } throws ValkeyConnectionFailureException("Test connection failure")
-    every { mockTemplate.hasKey(any()) } throws RedisConnectionFailureException("Test connection failure")
+    every { mockTemplate.hasKey(any()) } throws ValkeyConnectionFailureException("Test connection failure")
 
     // Create a cache with the mock
     val mockCache = ValkeyDistributedCache(mockTemplate, serializer, config)

backend/infrastructure/cache/valkey-cache/src/test/resources/logback-test.xml

@@ -31,7 +31,7 @@
 
   <!-- Valkey/Lettuce Logger (reduziert Verbosity) -->
   <logger name="io.lettuce" level="WARN"/>
-    <logger name="org.springframework.data.redis" level="WARN" />
+  <logger name="io.valkey.springframework.data" level="WARN"/>
 
   <!-- Root Logger -->
   <root level="INFO">

backend/infrastructure/event-store/valkey-event-store/build.gradle.kts

@@ -30,6 +30,11 @@ dependencies {
   // OPTIMIERUNG: Wiederverwendung des `valkey-cache`-Bundles, da es die
   // gleichen Technologien (Spring Data Valkey, Lettuce, Jackson) verwendet
   implementation(libs.bundles.valkey.cache)
+  // Benötigt für Lettuce-basierten Valkey-Client (LettuceConnectionFactory)
+  implementation(libs.lettuce.core)
+  // Für Boot-Autoconfiguration-Annotations (z. B. @ConditionalOnMissingBean,
+  // @ConfigurationProperties, @EnableConfigurationProperties)
+  implementation("org.springframework.boot:spring-boot-autoconfigure")
   // Stellt Jakarta Annotations bereit (z. B. @PostConstruct), die von Spring verwendet werden
   implementation(libs.jakarta.annotation.api)
   // Für Kotlin-spezifische Coroutines-Integration mit Spring

backend/infrastructure/event-store/valkey-event-store/src/main/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyEventConsumer.kt

@@ -2,12 +2,16 @@ package at.mocode.infrastructure.eventstore.valkey
 
 import at.mocode.core.domain.event.DomainEvent
 import at.mocode.infrastructure.eventstore.api.EventSerializer
+import io.valkey.springframework.data.valkey.connection.stream.Consumer
+import io.valkey.springframework.data.valkey.connection.stream.MapRecord
+import io.valkey.springframework.data.valkey.connection.stream.ReadOffset
+import io.valkey.springframework.data.valkey.connection.stream.StreamOffset
+import io.valkey.springframework.data.valkey.connection.stream.StreamReadOptions
+import io.valkey.springframework.data.valkey.core.StringValkeyTemplate
 import jakarta.annotation.PostConstruct
 import jakarta.annotation.PreDestroy
 import org.slf4j.LoggerFactory
 import org.springframework.data.domain.Range
-import org.springframework.data.redis.connection.stream.*
-import org.springframework.data.redis.core.StringRedisTemplate
 import org.springframework.scheduling.annotation.Scheduled
 import java.util.concurrent.ConcurrentHashMap
 import java.util.concurrent.CopyOnWriteArrayList
@@ -16,7 +20,7 @@ import java.util.concurrent.CopyOnWriteArrayList
  * Consumer for Valkey Streams that processes events using consumer groups.
  */
 class ValkeyEventConsumer(
-  private val valkeyTemplate: StringRedisTemplate,
+  private val valkeyTemplate: StringValkeyTemplate,
   private val serializer: EventSerializer,
   private val properties: ValkeyEventStoreProperties
 ) {
@@ -143,7 +147,7 @@ class ValkeyEventConsumer(
   /**
    * Periodic polls for new events from all streams.
    */
-    @Scheduled(fixedDelayString = $$"${valkey.event-store.poll-interval:100}")
+  @Scheduled(fixedDelayString = "\${valkey.event-store.poll-interval:100}")
   fun pollEvents() {
     if (!running) {
       running = true

backend/infrastructure/event-store/valkey-event-store/src/main/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyEventStore.kt

@@ -8,16 +8,17 @@ import at.mocode.infrastructure.eventstore.api.ConcurrencyException
 import at.mocode.infrastructure.eventstore.api.EventSerializer
 import at.mocode.infrastructure.eventstore.api.EventStore
 import at.mocode.infrastructure.eventstore.api.Subscription
+import io.valkey.springframework.data.valkey.core.SessionCallback
+import io.valkey.springframework.data.valkey.core.StringValkeyTemplate
+import io.valkey.springframework.data.valkey.core.ValkeyOperations
 import org.slf4j.LoggerFactory
 import org.springframework.dao.DataAccessException
 import org.springframework.data.domain.Range
-import org.springframework.data.redis.core.SessionCallback
-import org.springframework.data.redis.core.StringRedisTemplate
 import java.util.concurrent.ConcurrentHashMap
 import kotlin.uuid.Uuid
 
 class ValkeyEventStore(
-  private val valkeyTemplate: StringRedisTemplate,
+  private val valkeyTemplate: StringValkeyTemplate,
   private val serializer: EventSerializer,
   private val properties: ValkeyEventStoreProperties
 ) : EventStore {
@@ -131,8 +132,8 @@ class ValkeyEventStore(
     try {
       valkeyTemplate.execute(object : SessionCallback<List<Any>> {
         @Throws(DataAccessException::class)
-        override fun <K, V> execute(operations: org.springframework.data.redis.core.RedisOperations<K, V>): List<Any> {
+        override fun <K, V> execute(operations: ValkeyOperations<K, V>): List<Any> {
-          val streamOps = (operations as StringRedisTemplate).opsForStream<String, String>()
+          val streamOps = (operations as StringValkeyTemplate).opsForStream<String, String>()
 
           operations.multi()
 
@@ -178,8 +179,8 @@ class ValkeyEventStore(
     try {
       valkeyTemplate.execute(object : SessionCallback<List<Any>> {
         @Throws(DataAccessException::class)
-        override fun <K, V> execute(operations: org.springframework.data.redis.core.RedisOperations<K, V>): List<Any> {
+        override fun <K, V> execute(operations: ValkeyOperations<K, V>): List<Any> {
-          val streamOps = (operations as StringRedisTemplate).opsForStream<String, String>()
+          val streamOps = (operations as StringValkeyTemplate).opsForStream<String, String>()
 
           operations.multi()
           streamOps.add(streamKey, eventData)

backend/infrastructure/event-store/valkey-event-store/src/main/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyEventStoreConfiguration.kt

@@ -2,16 +2,17 @@ package at.mocode.infrastructure.eventstore.valkey
 
 import at.mocode.infrastructure.eventstore.api.EventSerializer
 import at.mocode.infrastructure.eventstore.api.EventStore
-import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
+import io.valkey.springframework.data.valkey.connection.ValkeyConnectionFactory
+import io.valkey.springframework.data.valkey.connection.ValkeyPassword
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.StringValkeyTemplate
+import org.springframework.beans.factory.annotation.Qualifier
 import org.springframework.boot.context.properties.ConfigurationProperties
 import org.springframework.boot.context.properties.EnableConfigurationProperties
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
-import org.springframework.data.redis.connection.RedisConnectionFactory
-import org.springframework.data.redis.connection.RedisPassword
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.StringRedisTemplate
 import java.time.Duration
 
 /**
@@ -53,11 +54,11 @@ class ValkeyEventStoreConfiguration {
    */
   @Bean
   @ConditionalOnMissingBean(name = ["eventStoreValkeyConnectionFactory"])
-  fun eventStoreValkeyConnectionFactory(properties: ValkeyEventStoreProperties): RedisConnectionFactory {
+  fun eventStoreValkeyConnectionFactory(properties: ValkeyEventStoreProperties): ValkeyConnectionFactory {
-    val config = RedisStandaloneConfiguration().apply {
+    val config = ValkeyStandaloneConfiguration().apply {
       hostName = properties.host
       port = properties.port
-      properties.password?.let { password = RedisPassword.of(it) }
+      properties.password?.let { password = ValkeyPassword.of(it) }
       database = properties.database
     }
 
@@ -76,10 +77,10 @@ class ValkeyEventStoreConfiguration {
   @Bean
   @ConditionalOnMissingBean(name = ["eventStoreValkeyTemplate"])
   fun eventStoreValkeyTemplate(
-    @org.springframework.beans.factory.annotation.Qualifier("eventStoreValkeyConnectionFactory")
+    @Qualifier("eventStoreValkeyConnectionFactory")
-    connectionFactory: RedisConnectionFactory
+    connectionFactory: ValkeyConnectionFactory
-  ): StringRedisTemplate {
+  ): StringValkeyTemplate {
-    return StringRedisTemplate().apply {
+    return StringValkeyTemplate().apply {
       setConnectionFactory(connectionFactory)
       afterPropertiesSet()
     }
@@ -107,8 +108,8 @@ class ValkeyEventStoreConfiguration {
   @Bean
   @ConditionalOnMissingBean
   fun eventStore(
-    @org.springframework.beans.factory.annotation.Qualifier("eventStoreValkeyTemplate")
+    @Qualifier("eventStoreValkeyTemplate")
-    valkeyTemplate: StringRedisTemplate,
+    valkeyTemplate: StringValkeyTemplate,
     eventSerializer: EventSerializer,
     properties: ValkeyEventStoreProperties
   ): EventStore {
@@ -126,8 +127,8 @@ class ValkeyEventStoreConfiguration {
   @Bean
   @ConditionalOnMissingBean
   fun eventConsumer(
-    @org.springframework.beans.factory.annotation.Qualifier("eventStoreValkeyTemplate")
+    @Qualifier("eventStoreValkeyTemplate")
-    valkeyTemplate: StringRedisTemplate,
+    valkeyTemplate: StringValkeyTemplate,
     eventSerializer: EventSerializer,
     properties: ValkeyEventStoreProperties
   ): ValkeyEventConsumer {

backend/infrastructure/event-store/valkey-event-store/src/test/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyCacheAndEventStoreIntegrationTest.kt

@@ -8,6 +8,8 @@ import at.mocode.infrastructure.cache.valkey.JacksonCacheSerializer
 import at.mocode.infrastructure.cache.valkey.ValkeyConfiguration
 import at.mocode.infrastructure.cache.valkey.ValkeyDistributedCache
 import at.mocode.infrastructure.eventstore.api.EventStore
+import io.valkey.springframework.data.valkey.connection.ValkeyConnectionFactory
+import io.valkey.springframework.data.valkey.core.ValkeyTemplate
 import kotlinx.coroutines.runBlocking
 import org.junit.jupiter.api.AfterAll
 import org.junit.jupiter.api.Assertions.assertEquals
@@ -20,8 +22,6 @@ import org.springframework.boot.test.context.SpringBootTest
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.Configuration
 import org.springframework.context.annotation.Import
-import org.springframework.data.redis.connection.RedisConnectionFactory
-import org.springframework.data.redis.core.RedisTemplate
 import org.springframework.test.context.DynamicPropertyRegistry
 import org.springframework.test.context.DynamicPropertySource
 import org.testcontainers.containers.GenericContainer
@@ -96,7 +96,7 @@ class ValkeyCacheAndEventStoreIntegrationTest {
   class TestConfig {
     @Bean
     fun distributedCache(
-      @Qualifier("valkeyTemplate") valkeyTemplate: RedisTemplate<String, ByteArray>,
+      @Qualifier("valkeyTemplate") valkeyTemplate: ValkeyTemplate<String, ByteArray>,
       cacheConfiguration: CacheConfiguration
     ): DistributedCache {
       return ValkeyDistributedCache(
@@ -116,11 +116,11 @@ class ValkeyCacheAndEventStoreIntegrationTest {
   // Verify separate ConnectionFactories
   @Autowired
   @Qualifier("valkeyConnectionFactory")
-  private lateinit var cacheConnectionFactory: RedisConnectionFactory
+  private lateinit var cacheConnectionFactory: ValkeyConnectionFactory
 
   @Autowired
   @Qualifier("eventStoreValkeyConnectionFactory")
-  private lateinit var eventStoreConnectionFactory: RedisConnectionFactory
+  private lateinit var eventStoreConnectionFactory: ValkeyConnectionFactory
 
   @Test
   fun `test both modules can be used simultaneously without conflicts`(): Unit = runBlocking {

backend/infrastructure/event-store/valkey-event-store/src/test/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyEventConsumerResilienceTest.kt

@@ -6,6 +6,9 @@ import at.mocode.core.domain.model.AggregateId
 import at.mocode.core.domain.model.EventType
 import at.mocode.core.domain.model.EventVersion
 import at.mocode.infrastructure.eventstore.api.EventSerializer
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.StringValkeyTemplate
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.Transient
 import org.junit.jupiter.api.AfterEach
@@ -14,9 +17,6 @@ import org.junit.jupiter.api.Assertions.assertTrue
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
 import org.slf4j.LoggerFactory
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.StringRedisTemplate
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -35,11 +35,11 @@ class ValkeyEventConsumerResilienceTest {
 
   companion object {
     @Container
-    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:9-alpine"))
+    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:8.0.2-alpine"))
       .withExposedPorts(6379)
   }
 
-  private lateinit var valkeyTemplate: StringRedisTemplate
+  private lateinit var valkeyTemplate: StringValkeyTemplate
   private lateinit var serializer: EventSerializer
   private lateinit var properties: ValkeyEventStoreProperties
   private lateinit var eventStore: ValkeyEventStore
@@ -51,11 +51,11 @@ class ValkeyEventConsumerResilienceTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-    valkeyTemplate = StringRedisTemplate(connectionFactory)
+    valkeyTemplate = StringValkeyTemplate(connectionFactory)
 
     serializer = JacksonEventSerializer().apply {
       registerEventType(ResilienceTestEvent::class.java, "ResilienceTestEvent")

backend/infrastructure/event-store/valkey-event-store/src/test/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyEventStoreConfigurationTest.kt

@@ -2,6 +2,8 @@ package at.mocode.infrastructure.eventstore.valkey
 
 import at.mocode.infrastructure.eventstore.api.EventSerializer
 import at.mocode.infrastructure.eventstore.api.EventStore
+import io.valkey.springframework.data.valkey.connection.ValkeyConnectionFactory
+import io.valkey.springframework.data.valkey.core.StringValkeyTemplate
 import org.junit.jupiter.api.Assertions.*
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
@@ -11,8 +13,6 @@ import org.springframework.boot.autoconfigure.AutoConfigurations
 import org.springframework.boot.context.properties.EnableConfigurationProperties
 import org.springframework.boot.test.context.runner.ApplicationContextRunner
 import org.springframework.context.annotation.Configuration
-import org.springframework.data.redis.connection.RedisConnectionFactory
-import org.springframework.data.redis.core.StringRedisTemplate
 import java.time.Duration
 
 /**
@@ -71,8 +71,8 @@ class ValkeyEventStoreConfigurationTest {
         assertTrue(context.containsBean("eventConsumer"))
 
         // Verify bean types
-        assertNotNull(context.getBean<RedisConnectionFactory>("eventStoreValkeyConnectionFactory"))
+        assertNotNull(context.getBean<ValkeyConnectionFactory>("eventStoreValkeyConnectionFactory"))
-        assertNotNull(context.getBean<StringRedisTemplate>("eventStoreValkeyTemplate"))
+        assertNotNull(context.getBean<StringValkeyTemplate>("eventStoreValkeyTemplate"))
         assertNotNull(context.getBean<EventSerializer>("eventSerializer"))
         assertNotNull(context.getBean<EventStore>("eventStore"))
         assertNotNull(context.getBean<ValkeyEventConsumer>("eventConsumer"))
@@ -160,7 +160,7 @@ class ValkeyEventStoreConfigurationTest {
         "valkey.event-store.database=1"
       )
       .run { context ->
-        val connectionFactory = context.getBean<RedisConnectionFactory>("eventStoreValkeyConnectionFactory")
+        val connectionFactory = context.getBean<ValkeyConnectionFactory>("eventStoreValkeyConnectionFactory")
         assertNotNull(connectionFactory)
 
         // Verify the connection factory is properly configured
@@ -176,7 +176,7 @@ class ValkeyEventStoreConfigurationTest {
   fun `should handle Valkey template creation correctly`() {
     contextRunner
       .run { context ->
-        val valkeyTemplate = context.getBean<StringRedisTemplate>("eventStoreValkeyTemplate")
+        val valkeyTemplate = context.getBean<StringValkeyTemplate>("eventStoreValkeyTemplate")
         assertNotNull(valkeyTemplate)
 
         // Verify the template is properly set up
@@ -211,7 +211,7 @@ class ValkeyEventStoreConfigurationTest {
         assertTrue(eventStore is ValkeyEventStore)
 
         // Verify dependencies are wired correctly
-        val valkeyTemplate = context.getBean<StringRedisTemplate>("eventStoreValkeyTemplate")
+        val valkeyTemplate = context.getBean<StringValkeyTemplate>("eventStoreValkeyTemplate")
         val eventSerializer = context.getBean<EventSerializer>("eventSerializer")
         val properties = context.getBean<ValkeyEventStoreProperties>()
 
@@ -231,7 +231,7 @@ class ValkeyEventStoreConfigurationTest {
         assertNotNull(eventConsumer)
 
         // Verify dependencies are available
-        val valkeyTemplate = context.getBean<StringRedisTemplate>("eventStoreValkeyTemplate")
+        val valkeyTemplate = context.getBean<StringValkeyTemplate>("eventStoreValkeyTemplate")
         val eventSerializer = context.getBean<EventSerializer>("eventSerializer")
         val properties = context.getBean<ValkeyEventStoreProperties>()
 

backend/infrastructure/event-store/valkey-event-store/src/test/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyEventStoreErrorHandlingTest.kt

@@ -6,6 +6,9 @@ import at.mocode.core.domain.model.EventType
 import at.mocode.core.domain.model.EventVersion
 import at.mocode.infrastructure.eventstore.api.ConcurrencyException
 import at.mocode.infrastructure.eventstore.api.EventSerializer
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.StringValkeyTemplate
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.Transient
 import org.junit.jupiter.api.AfterEach
@@ -13,9 +16,6 @@ import org.junit.jupiter.api.Assertions.*
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.assertThrows
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.StringRedisTemplate
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -32,11 +32,11 @@ class ValkeyEventStoreErrorHandlingTest {
 
   companion object {
     @Container
-    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:9-alpine"))
+    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:8.0.2-alpine"))
       .withExposedPorts(6379)
   }
 
-  private lateinit var valkeyTemplate: StringRedisTemplate
+  private lateinit var valkeyTemplate: StringValkeyTemplate
   private lateinit var serializer: EventSerializer
   private lateinit var properties: ValkeyEventStoreProperties
   private lateinit var eventStore: ValkeyEventStore
@@ -46,11 +46,11 @@ class ValkeyEventStoreErrorHandlingTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-    valkeyTemplate = StringRedisTemplate(connectionFactory)
+    valkeyTemplate = StringValkeyTemplate(connectionFactory)
 
     serializer = JacksonEventSerializer().apply {
       registerEventType(TestErrorEvent::class.java, "TestErrorEvent")

backend/infrastructure/event-store/valkey-event-store/src/test/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyEventStoreIntegrationTest.kt

@@ -7,14 +7,14 @@ import at.mocode.core.domain.event.DomainEvent
 import at.mocode.core.domain.model.*
 import at.mocode.infrastructure.eventstore.api.EventSerializer
 import at.mocode.infrastructure.eventstore.api.EventStore
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.StringValkeyTemplate
 import org.junit.jupiter.api.AfterEach
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Assertions.assertTrue
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.StringRedisTemplate
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -30,11 +30,11 @@ class ValkeyEventStoreIntegrationTest {
 
   companion object {
     @Container
-    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:9-alpine"))
+    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:8.0.2-alpine"))
       .withExposedPorts(6379)
   }
 
-  private lateinit var valkeyTemplate: StringRedisTemplate
+  private lateinit var valkeyTemplate: StringValkeyTemplate
   private lateinit var serializer: EventSerializer
   private lateinit var properties: ValkeyEventStoreProperties
   private lateinit var eventStore: EventStore
@@ -45,11 +45,11 @@ class ValkeyEventStoreIntegrationTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-    valkeyTemplate = StringRedisTemplate(connectionFactory)
+    valkeyTemplate = StringValkeyTemplate(connectionFactory)
 
     serializer = JacksonEventSerializer().apply {
       registerEventType(TestCreatedEvent::class.java, "TestCreated")

backend/infrastructure/event-store/valkey-event-store/src/test/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyEventStoreStreamTest.kt

@@ -5,6 +5,9 @@ import at.mocode.core.domain.model.AggregateId
 import at.mocode.core.domain.model.EventType
 import at.mocode.core.domain.model.EventVersion
 import at.mocode.infrastructure.eventstore.api.EventSerializer
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.StringValkeyTemplate
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.Transient
 import org.junit.jupiter.api.AfterEach
@@ -12,9 +15,6 @@ import org.junit.jupiter.api.Assertions.*
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
 import org.slf4j.LoggerFactory
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.StringRedisTemplate
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -31,11 +31,11 @@ class ValkeyEventStoreStreamTest {
 
   companion object {
     @Container
-    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:9-alpine"))
+    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:8.0.2-alpine"))
       .withExposedPorts(6379)
   }
 
-  private lateinit var valkeyTemplate: StringRedisTemplate
+  private lateinit var valkeyTemplate: StringValkeyTemplate
   private lateinit var serializer: EventSerializer
   private lateinit var properties: ValkeyEventStoreProperties
   private lateinit var eventStore: ValkeyEventStore
@@ -45,11 +45,11 @@ class ValkeyEventStoreStreamTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-    valkeyTemplate = StringRedisTemplate(connectionFactory)
+    valkeyTemplate = StringValkeyTemplate(connectionFactory)
 
     serializer = JacksonEventSerializer().apply {
       registerEventType(StreamTestEvent::class.java, "StreamTestEvent")

backend/infrastructure/event-store/valkey-event-store/src/test/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyEventStoreTest.kt

@@ -6,6 +6,9 @@ import at.mocode.core.domain.model.EventType
 import at.mocode.core.domain.model.EventVersion
 import at.mocode.infrastructure.eventstore.api.ConcurrencyException
 import at.mocode.infrastructure.eventstore.api.EventSerializer
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.StringValkeyTemplate
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.Transient
 import org.junit.jupiter.api.AfterEach
@@ -13,9 +16,6 @@ import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.assertThrows
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.StringRedisTemplate
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -27,11 +27,11 @@ class ValkeyEventStoreTest {
 
   companion object {
     @Container
-        val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:9-alpine"))
+    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:8.0.2-alpine"))
       .withExposedPorts(6379)
   }
 
-    private lateinit var valkeyTemplate: StringRedisTemplate
+  private lateinit var valkeyTemplate: StringValkeyTemplate
   private lateinit var serializer: EventSerializer
   private lateinit var properties: ValkeyEventStoreProperties
   private lateinit var eventStore: ValkeyEventStore
@@ -41,11 +41,11 @@ class ValkeyEventStoreTest {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
 
-        val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
 
-        valkeyTemplate = StringRedisTemplate(connectionFactory)
+    valkeyTemplate = StringValkeyTemplate(connectionFactory)
 
     serializer = JacksonEventSerializer().apply {
       registerEventType(TestCreatedEvent::class.java, "TestCreated")

backend/infrastructure/event-store/valkey-event-store/src/test/kotlin/at/mocode/infrastructure/eventstore/valkey/ValkeyIntegrationTest.kt

@@ -9,15 +9,15 @@ import at.mocode.core.domain.model.EventType
 import at.mocode.core.domain.model.EventVersion
 import at.mocode.infrastructure.eventstore.api.EventSerializer
 import at.mocode.infrastructure.eventstore.api.EventStore
+import io.valkey.springframework.data.valkey.connection.ValkeyStandaloneConfiguration
+import io.valkey.springframework.data.valkey.connection.lettuce.LettuceConnectionFactory
+import io.valkey.springframework.data.valkey.core.StringValkeyTemplate
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.Transient
 import org.junit.jupiter.api.AfterEach
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
-import org.springframework.data.redis.connection.RedisStandaloneConfiguration
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory
-import org.springframework.data.redis.core.StringRedisTemplate
 import org.testcontainers.containers.GenericContainer
 import org.testcontainers.junit.jupiter.Container
 import org.testcontainers.junit.jupiter.Testcontainers
@@ -29,11 +29,11 @@ class ValkeyIntegrationTest {
 
   companion object {
     @Container
-    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:9-alpine"))
+    val valkeyContainer: GenericContainer<*> = GenericContainer(DockerImageName.parse("valkey/valkey:8.0.2-alpine"))
       .withExposedPorts(6379)
   }
 
-  private lateinit var valkeyTemplate: StringRedisTemplate
+  private lateinit var valkeyTemplate: StringValkeyTemplate
   private lateinit var serializer: EventSerializer
   private lateinit var properties: ValkeyEventStoreProperties
   private lateinit var eventStore: EventStore
@@ -43,10 +43,10 @@ class ValkeyIntegrationTest {
   fun setUp() {
     val valkeyPort = valkeyContainer.getMappedPort(6379)
     val valkeyHost = valkeyContainer.host
-    val valkeyConfig = RedisStandaloneConfiguration(valkeyHost, valkeyPort)
+    val valkeyConfig = ValkeyStandaloneConfiguration(valkeyHost, valkeyPort)
     val connectionFactory = LettuceConnectionFactory(valkeyConfig)
     connectionFactory.afterPropertiesSet()
-    valkeyTemplate = StringRedisTemplate(connectionFactory)
+    valkeyTemplate = StringValkeyTemplate(connectionFactory)
     serializer = JacksonEventSerializer().apply {
       registerEventType(TestCreatedEvent::class.java, "TestCreated")
       registerEventType(TestUpdatedEvent::class.java, "TestUpdated")

backend/infrastructure/gateway/build.gradle.kts

@@ -31,7 +31,7 @@ dependencies {
   // Resilience (Reactive) - WICHTIG: Reactor-Variante für WebFlux!
   implementation(libs.spring.cloud.starter.circuitbreaker.reactor.resilience4j)
 
-  implementation(libs.spring.boot.starter.data.redis)
+  implementation(libs.spring.data.valkey)
   implementation(libs.micrometer.tracing.bridge.brave)
 
   testImplementation(projects.platform.platformTesting)

backend/infrastructure/messaging/messaging-client/build.gradle.kts

@@ -41,3 +41,9 @@ dependencies {
   // Stellt alle Test-Abhängigkeiten gebündelt bereit.
   testImplementation(projects.platform.platformTesting)
 }
+
+// JVM Native Access (JDK 22+): Unterdrückt Warnung/Blockade für Snappy (org.xerial.snappy)
+tasks.withType<Test>().configureEach {
+  // Erfordert JDK 21+; ab zukünftigen Versionen sonst Fehler statt Warnung
+  jvmArgs("--enable-native-access=ALL-UNNAMED")
+}

gradle/libs.versions.toml

@@ -59,6 +59,7 @@ flyway = "11.19.1"
 redisson = "4.0.0"
 # Spring Boot 3.5.x manages Lettuce 6.6.x; keep aligned to avoid binary/API mismatches.
 lettuce = "6.6.0.RELEASE"
+springDataValkey = "0.2.0"
 
 # Observability
 micrometer = "1.16.1"
@@ -229,6 +230,7 @@ flyway-postgresql = { module = "org.flywaydb:flyway-database-postgresql", versio
 
 redisson = { module = "org.redisson:redisson", version.ref = "redisson" }
 lettuce-core = { module = "io.lettuce:lettuce-core", version.ref = "lettuce" }
+spring-data-valkey = { module = "io.valkey.springframework.data:spring-data-valkey", version.ref = "springDataValkey" }
 
 micrometer-prometheus = { module = "io.micrometer:micrometer-registry-prometheus", version.ref = "micrometer" }
 micrometer-tracing-bridge-brave = { module = "io.micrometer:micrometer-tracing-bridge-brave", version.ref = "micrometerTracing" }
@@ -342,8 +344,7 @@ database-complete = [
   "flyway-postgresql"
 ]
 valkey-cache = [
-  "spring-boot-starter-data-redis",
+  "spring-data-valkey",
-  "lettuce-core",
   "jackson-module-kotlin",
   "jackson-datatype-jsr310"
 ]