public List<String> getNonmatchingETagConstraints() {
        return nonmatchingEtagConstraints;
    }
Gets the optional list of ETag constraints that when present, <b>must</b>
not include a match for the object's current ETag in order for this
request to be executed. If any entry in the non-matching ETag constraint
list matches the object's current ETag, this request <b>will not</b> be
executed by Amazon S3.

@return The optional list of ETag constraints that when present, <b>must</b>
        not include a match for the object's current ETag in order
        for this request to be executed.

@see GetObjectRequest#setNonmatchingETagConstraints(List)
@see GetObjectRequest#withNonmatchingETagConstraint(String)
aws-java-sdk-s3/src/main/java/com/amazonaws/services/s3/model/GetObjectRequest.java