diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/ExternalDataPE.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/ExternalDataPE.java
index 8842d026ab3a88b895759cdd9764b0334478e493..d284288895a5ae6735cf8f15d68a4b56e7d226b5 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/ExternalDataPE.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/ExternalDataPE.java
@@ -57,6 +57,7 @@ public final class ExternalDataPE extends DataPE
     private static final long serialVersionUID = GenericSharedConstants.VERSION;
 
     /** An empty array of <code>ExternalData</code>. */
+    @SuppressWarnings("hiding")
     public final static ExternalDataPE[] EMPTY_ARRAY = new ExternalDataPE[0];
 
     private String location;
diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/NewSampleComponent.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/NewSampleComponent.java
index 98a9a3052c1574dbba7433e570bba6fd7ddd5598..b8f48dfaac8fda20ec6ac647aef1ca32084c5735 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/NewSampleComponent.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/shared/dto/NewSampleComponent.java
@@ -31,6 +31,7 @@ public final class NewSampleComponent extends NewSampleComponentWithFixedMateria
 {
     private static final long serialVersionUID = GenericSharedConstants.VERSION;
 
+    @SuppressWarnings("hiding")
     public final static NewSampleComponent[] EMPTY_ARRAY = new NewSampleComponent[0];
 
     private String materialTypeCode;