diff --git a/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/JacksonExtensions.kt b/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/JacksonExtensions.kt
deleted file mode 100644
index 090af6d87..000000000
--- a/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/JacksonExtensions.kt
+++ /dev/null
@@ -1,13 +0,0 @@
-package io.holunda.polyflow.taskpool.core
-
-import com.fasterxml.jackson.databind.ObjectMapper
-import io.holunda.polyflow.bus.jackson.configurePolyflowJacksonObjectMapper
-
-/**
- * Configures object mapper.
- */
-@Deprecated(
-  replaceWith = ReplaceWith("io.holunda.polyflow.bus.jackson.configurePolyflowJacksonObjectMapper()"),
-  message = "Moved to separate artifact polyflow-bus-jackson"
-)
-fun ObjectMapper.configureTaskpoolJacksonObjectMapper(): ObjectMapper = configurePolyflowJacksonObjectMapper()
diff --git a/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/TaskPoolCoreConfiguration.kt b/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/TaskPoolCoreConfiguration.kt
index 6b31cffed..5fe428ddc 100755
--- a/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/TaskPoolCoreConfiguration.kt
+++ b/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/TaskPoolCoreConfiguration.kt
@@ -1,13 +1,18 @@
 package io.holunda.polyflow.taskpool.core
 
+import com.fasterxml.jackson.databind.ObjectMapper
+import io.holunda.polyflow.bus.jackson.JsonAutoDetectAnyVisibility
 import io.holunda.polyflow.taskpool.core.process.ProcessDefinitionAggregate
 import io.holunda.polyflow.taskpool.core.process.ProcessInstanceAggregate
 import io.holunda.polyflow.taskpool.core.task.TaskAggregate
+import org.axonframework.common.caching.Cache
+import org.axonframework.common.caching.WeakReferenceCache
 import org.axonframework.eventsourcing.EventSourcingRepository
 import org.axonframework.eventsourcing.eventstore.EventStore
 import org.axonframework.messaging.annotation.ParameterResolverFactory
 import org.axonframework.modelling.command.Aggregate
 import org.axonframework.modelling.command.AggregateNotFoundException
+import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.context.annotation.Bean
 import org.springframework.context.annotation.ComponentScan
 import org.springframework.context.annotation.Configuration
@@ -22,6 +27,7 @@ class TaskPoolCoreConfiguration {
 
   companion object {
     const val TASK_AGGREGATE_REPOSITORY = "taskAggregateRepository"
+    const val TASK_CACHE = "taskCache"
     const val PROCESS_DEFINITION_AGGREGATE_REPOSITORY = "processDefinitionAggregateRepository"
     const val PROCESS_INSTANCE_AGGREGATE_REPOSITORY = "processInstanceAggregateRepository"
   }
@@ -62,6 +68,16 @@ class TaskPoolCoreConfiguration {
       .build()
   }
 
+  @Autowired
+  fun configureJackson(objectMapper: ObjectMapper) {
+    objectMapper.configurePolyflowJacksonObjectMapperForTaskPool()
+  }
+
+  /**
+   * Use weak reference cache.
+   */
+  @Bean(TASK_CACHE)
+  fun taskCache(): Cache = WeakReferenceCache()
 }
 
 /**
@@ -89,3 +105,8 @@ fun <T> Optional<T>.ifPresentOrElse(presentConsumer: (T) -> Unit, missingCallbac
   }
 }
 
+fun ObjectMapper.configurePolyflowJacksonObjectMapperForTaskPool(): ObjectMapper {
+  addMixIn(TaskAggregate::class.java, JsonAutoDetectAnyVisibility::class.java)
+  return this
+}
+
diff --git a/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/process/ProcessInstanceVariablesChangeHandler.kt b/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/process/ProcessInstanceVariablesChangeHandler.kt
index b5cfb745c..aa15b0904 100644
--- a/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/process/ProcessInstanceVariablesChangeHandler.kt
+++ b/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/process/ProcessInstanceVariablesChangeHandler.kt
@@ -7,7 +7,7 @@ import org.springframework.context.annotation.Lazy
 import org.springframework.stereotype.Component
 
 /**
- * This handler makes sure that an update of variables can be send without a create of the process instance..
+ * This handler makes sure that an update of variables can be sent without a create of the process instance.
  */
 @Component
 class ProcessInstanceVariablesChangeHandler(
diff --git a/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/task/TaskAggregate.kt b/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/task/TaskAggregate.kt
index b7554eaa2..087d1d4cf 100755
--- a/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/task/TaskAggregate.kt
+++ b/core/taskpool/taskpool-core/src/main/kotlin/io/holunda/polyflow/taskpool/core/task/TaskAggregate.kt
@@ -15,7 +15,10 @@ import org.axonframework.spring.stereotype.Aggregate
 /**
  * Main representation of the tasks available in the system.
  */
-@Aggregate(repository = TaskPoolCoreConfiguration.TASK_AGGREGATE_REPOSITORY)
+@Aggregate(
+  repository = TaskPoolCoreConfiguration.TASK_AGGREGATE_REPOSITORY,
+  cache = TaskPoolCoreConfiguration.TASK_CACHE,
+)
 class TaskAggregate() {
 
   companion object : KLogging()