framework/application/kernel/jpa/src/main/java/org/ldp4j/application/kernel/persistence/jpa/JPAResource.java
@Override
	public Attachment findAttachment(ResourceId resourceId) {
		checkNotNull(resourceId,"Attached resource identifier cannot be null");
		return this.attachmentCollection.attachmendByResourceId(resourceId);
	}
@Override
	public Attachment findAttachment(ResourceId resourceId) {
		checkNotNull(resourceId,"Attached resource identifier cannot be null");
		return this.attachmentCollection.attachmendByResourceId(resourceId);
	}
{@inheritDoc}