public S3CopyObjectOperation withModifiedSinceConstraint(java.util.Date modifiedSinceConstraint) {
        setModifiedSinceConstraint(modifiedSinceConstraint);
        return this;
    }
<p/>

@param modifiedSinceConstraint
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-s3control/src/main/java/com/amazonaws/services/s3control/model/S3CopyObjectOperation.java