diff --git a/src/main/java/org/springframework/samples/petclinic/Owner.java b/src/main/java/org/springframework/samples/petclinic/Owner.java
index cb24f263e..4bf7f09ce 100644
--- a/src/main/java/org/springframework/samples/petclinic/Owner.java
+++ b/src/main/java/org/springframework/samples/petclinic/Owner.java
@@ -12,9 +12,8 @@ import javax.persistence.Entity;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import javax.validation.constraints.Digits;
-import javax.validation.constraints.NotNull;
-import javax.validation.constraints.Size;
+import org.hibernate.validator.constraints.NotEmpty;
import org.springframework.beans.support.MutableSortDefinition;
import org.springframework.beans.support.PropertyComparator;
import org.springframework.core.style.ToStringCreator;
@@ -30,15 +29,15 @@ import org.springframework.core.style.ToStringCreator;
@Entity @Table(name="owners")
public class Owner extends Person {
@Column(name="address")
- @NotNull @Size(min = 1)
+ @NotEmpty
private String address;
@Column(name="city")
- @NotNull @Size(min = 1)
+ @NotEmpty
private String city;
@Column(name="telephone")
- @NotNull @Digits(fraction = 0, integer = 10)
+ @NotEmpty @Digits(fraction = 0, integer = 10)
private String telephone;
@OneToMany(cascade=CascadeType.ALL, mappedBy="owner")
diff --git a/src/main/resources/log4j.xml b/src/main/resources/log4j.xml
index 817cc7364..40506650e 100755
--- a/src/main/resources/log4j.xml
+++ b/src/main/resources/log4j.xml
@@ -12,7 +12,7 @@