framework/application/kernel/mem/src/main/java/org/ldp4j/application/kernel/impl/InMemoryResource.java
@Override
	public Attachment findAttachment(ResourceId resourceId) {
		checkNotNull(resourceId,"Attached resource identifier cannot be null");
		return this.attachments.get(this.attachmentsByResourceId.get(resourceId));
	}
@Override
	public Attachment findAttachment(ResourceId resourceId) {
		checkNotNull(resourceId,"Attached resource identifier cannot be null");
		return this.attachments.get(this.attachmentsByResourceId.get(resourceId));
	}
{@inheritDoc}