diff --git a/server-application-server/sourceTest/java/ch/systemsx/cisd/openbis/generic/shared/managed_property/JythonManagedPropertyEvaluatorTest.java b/server-application-server/sourceTest/java/ch/systemsx/cisd/openbis/generic/shared/managed_property/JythonManagedPropertyEvaluatorTest.java
index bcc569116b5825f56d70333cf9ea6ebd8f1a437c..671487e571b6f1a6911142b884d089907596d99e 100644
--- a/server-application-server/sourceTest/java/ch/systemsx/cisd/openbis/generic/shared/managed_property/JythonManagedPropertyEvaluatorTest.java
+++ b/server-application-server/sourceTest/java/ch/systemsx/cisd/openbis/generic/shared/managed_property/JythonManagedPropertyEvaluatorTest.java
@@ -255,7 +255,7 @@ public class JythonManagedPropertyEvaluatorTest extends AssertJUnit
 
         evaluator.updateFromUI(managedProperty, person, action1);
         assertNotNull(managedProperty.getValue());
-        String[] inputTokens1 = managedProperty.getValue().split("\\|");
+        String[] inputTokens1 = ((String)managedProperty.getValue()).split("\\|");
         assertEquals("a1", inputTokens1[0]);
         assertEquals("t1=null", inputTokens1[1]);
         assertEquals("t2=v2", inputTokens1[2]);
@@ -264,7 +264,7 @@ public class JythonManagedPropertyEvaluatorTest extends AssertJUnit
 
         evaluator.updateFromUI(managedProperty, person, action2);
         assertNotNull(managedProperty.getValue());
-        String[] inputTokens2 = managedProperty.getValue().split("\\!");
+        String[] inputTokens2 = ((String)managedProperty.getValue()).split("\\!");
         assertEquals("a2", inputTokens2[0]);
         assertEquals("t1=v11", inputTokens2[1]);
         assertEquals("t2=v22", inputTokens2[2]);
diff --git a/server-application-server/sourceTest/java/ch/systemsx/cisd/openbis/generic/shared/managed_property/structured/AbstractStructuredPropertyConverterTest.java b/server-application-server/sourceTest/java/ch/systemsx/cisd/openbis/generic/shared/managed_property/structured/AbstractStructuredPropertyConverterTest.java
index 928f6bb19ef74d976b8de5d8859556caeec5bc47..b4151670d254c4a9cd975a95bac7c652e72b3522 100644
--- a/server-application-server/sourceTest/java/ch/systemsx/cisd/openbis/generic/shared/managed_property/structured/AbstractStructuredPropertyConverterTest.java
+++ b/server-application-server/sourceTest/java/ch/systemsx/cisd/openbis/generic/shared/managed_property/structured/AbstractStructuredPropertyConverterTest.java
@@ -15,6 +15,7 @@
  */
 package ch.systemsx.cisd.openbis.generic.shared.managed_property.structured;
 
+import java.io.Serializable;
 import java.util.Arrays;
 import java.util.List;
 
@@ -88,7 +89,7 @@ public abstract class AbstractStructuredPropertyConverterTest extends AssertJUni
         }
 
         @Override
-        public void setValue(String value)
+        public void setValue(Serializable value)
         {
             throw new UnsupportedOperationException();
         }