update on an entity with a {{ javax.validation.constraints.NotNull }} constraint on a {{ ManyToMany }} relation causes an {{ AssertionFailure }} if the relatated entity also contains a {{ ManyToMany }} relation to a third entity and all relations have the fetchtype lazy.
Here is the given entity structure:
{code}
@Entity class A {
String textA;
@NotNull
@ManyToMany
Set<B> b;
}
{code}
{code}
@Entity class B {
String textB;
@NotNull
@ManyToMany
Set<C> b;
}
{code}
{code}
@Entity class A {
String textC;
}
{code}
this pseudocode causes the error:
{code}
startTransaction
A myA = find(A.class,1);
myA.setText("newText");
commit
{code}
See the attached testcase for more details
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