diff --git a/screening/source/java/ch/systemsx/cisd/openbis/dss/etl/featurevector/FeatureValuesMap.java b/screening/source/java/ch/systemsx/cisd/openbis/dss/etl/featurevector/FeatureValuesMap.java
index f0ecb2d90312babbb99746957be34b4d867bc36d..103b8aaca69ce7073c3b09f51c68b25ca10e25a5 100644
--- a/screening/source/java/ch/systemsx/cisd/openbis/dss/etl/featurevector/FeatureValuesMap.java
+++ b/screening/source/java/ch/systemsx/cisd/openbis/dss/etl/featurevector/FeatureValuesMap.java
@@ -33,8 +33,6 @@ import ch.systemsx.cisd.openbis.plugin.screening.shared.basic.dto.WellLocation;
  */
 public class FeatureValuesMap
 {
-    private static final long serialVersionUID = 1L;
-
     private final Map<WellLocation, String> valuesMap;
 
     private final Double depthOrNull;
diff --git a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/server/ImageViewerLaunchServlet.java b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/server/ImageViewerLaunchServlet.java
index 9538503ad9171e7ebbd9cee9492064ebfe969ce8..2b70628dca1faf2d96bea8d22292446d7b1d5fe1 100644
--- a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/server/ImageViewerLaunchServlet.java
+++ b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/client/web/server/ImageViewerLaunchServlet.java
@@ -49,8 +49,6 @@ import ch.systemsx.cisd.openbis.plugin.screening.client.web.client.ParameterName
     { "/" + IMAGE_VIEWER_LAUNCH_URL, "/openbis/" + IMAGE_VIEWER_LAUNCH_URL })
 public class ImageViewerLaunchServlet extends AbstractServlet
 {
-    private static final long serialVersionUID = 1L;
-
     public static final Template JNLP_TEMPLATE = new Template(
             "<?xml version='1.0' encoding='utf-8'?>\n"
             + "<jnlp spec='1.0+' codebase='${base-URL}'>\n"
diff --git a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/server/logic/dto/MaterialAllReplicasFeatureVectors.java b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/server/logic/dto/MaterialAllReplicasFeatureVectors.java
index 9126aec9aab15cef2176d5346d461e1211fd7f24..ca196a87a9bb4b533510717ffd10efe0f6230283 100644
--- a/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/server/logic/dto/MaterialAllReplicasFeatureVectors.java
+++ b/screening/source/java/ch/systemsx/cisd/openbis/plugin/screening/server/logic/dto/MaterialAllReplicasFeatureVectors.java
@@ -3,7 +3,6 @@ package ch.systemsx.cisd.openbis.plugin.screening.server.logic.dto;
 import java.util.List;
 
 import ch.systemsx.cisd.openbis.generic.shared.basic.dto.CodeAndLabel;
-import ch.systemsx.cisd.openbis.generic.shared.basic.dto.ServiceVersionHolder;
 
 /**
  * Feature vectors (details and summaries) for one material.
@@ -12,8 +11,6 @@ import ch.systemsx.cisd.openbis.generic.shared.basic.dto.ServiceVersionHolder;
  */
 public class MaterialAllReplicasFeatureVectors
 {
-    private static final long serialVersionUID = ServiceVersionHolder.VERSION;
-
     // NOTE: has the same length as feature vectors in all summaries
     private final List<CodeAndLabel> featureDescriptions;