roleDTO serialisation fix

java/com.sap.sse.security.common/src/com/sap/sse/security/shared/AbstractRole.java

@@ -26,7 +26,8 @@ public abstract class AbstractRole<RD extends RoleDefinition, G extends Abstract
     }
     
     @Deprecated
-    AbstractRole() {} // for GWT serialization only
+    protected AbstractRole() {
+    } // for GWT serialization only
     
     public AbstractRole(RD roleDefinition) {
         this(roleDefinition, /* tenant owner */ null, /* user owner */ null);

java/com.sap.sse.security.common/src/com/sap/sse/security/shared/dto/RoleDTO.java

@@ -5,9 +5,8 @@ import com.sap.sse.security.shared.AbstractRole;
 public class RoleDTO extends AbstractRole<RoleDefinitionDTO, UserGroupDTO, StrippedUserDTO> {
     private static final long serialVersionUID = 1L;
 
-    @Deprecated
-    private RoleDTO() {
-        super(null);
+    @Deprecated // gwt serialisation only
+    RoleDTO() {
     }
 
     public RoleDTO(RoleDefinitionDTO roleDefinition, UserGroupDTO qualifiedForTenant,