SI-3095 Schnittstelle SARIS
diff --git a/gfsBackendService/src/main/java/org/eclipse/openk/gridfailureinformation/service/ImportService.java b/gfsBackendService/src/main/java/org/eclipse/openk/gridfailureinformation/service/ImportService.java
index 346ae91..204b858 100644
--- a/gfsBackendService/src/main/java/org/eclipse/openk/gridfailureinformation/service/ImportService.java
+++ b/gfsBackendService/src/main/java/org/eclipse/openk/gridfailureinformation/service/ImportService.java
@@ -17,7 +17,6 @@
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import lombok.extern.log4j.Log4j2;
-import org.apache.commons.lang.SerializationUtils;
 import org.apache.commons.lang.StringUtils;
 import org.eclipse.openk.gridfailureinformation.bpmn.impl.GfiProcessState;
 import org.eclipse.openk.gridfailureinformation.bpmn.impl.tasks.ProcessHelper;
@@ -35,6 +34,7 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.Assert;
 import org.springframework.validation.annotation.Validated;
 
 import java.math.BigDecimal;
@@ -160,6 +160,8 @@
                 return null;
             }
 
+
+            Assert.notNull(existingDtoClone, "existingDtoClone was null");
             //Don't update if the failureinformation was already edited by an user
             if (foreignFailureDataDto.isExcludeAlreadyEdited() && !Objects.equals(updatedDto.getModUser(), existingDtoClone.getModUser())){
                 log.debug("External failure information [MetaId: " + importDataDto.getMetaId() + "] from "