SSDM-3026 : Default constructor for date.

SVN: 35906

openbis_api/source/java/ch/ethz/sis/openbis/generic/asapi/v3/dto/common/search/DateEqualToValue.java

@@ -27,6 +27,11 @@ public class DateEqualToValue extends AbstractDateValue
 
     private static final long serialVersionUID = 1L;
 
+    DateEqualToValue()
+    {
+    	super(null);
+    }
+    
     DateEqualToValue(String value)
     {
         super(value);