In one of my bean I have the following mapping:

@OneToMany(cascade=CascadeType.ALL)
 @IndexColumn(name="ooops")
 public String[] getArrays() {
 return arrays;
 }
public String getName() {
 return name;
 }

Another class is declare as EntityListener for the previous one.

When I change the name of my entity bean, I see that the method marked with @PreUpdate is invoked beforez commit.

If I only set the arrays, method mark with @PreUpdate is not invoked but objects in DB has been updated. (I have the same behavior with int[], List, List).

Is it a bug ?
How can i be notify when an array change ?