https://github.com/javaee/jpa-spec: Java(TM) Persistence API 
public interface javax.persistence.metamodel.CollectionAttribute<X, E> extends javax.persistence.metamodel.PluralAttribute<X, java.util.Collection<E>, E>
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: javax.persistence.metamodel.CollectionAttribute
  super_class: java.lang.Object
{
}
Signature: <X:Ljava/lang/Object;E:Ljava/lang/Object;>Ljava/lang/Object;Ljavax/persistence/metamodel/PluralAttribute<TX;Ljava/util/Collection<TE;>;TE;>;
SourceFile: "CollectionAttribute.java"