public SigningCertificate withUploadDate(java.util.Date uploadDate) {
        setUploadDate(uploadDate);
        return this;
    }
<p>
The date when the signing certificate was uploaded.
</p>

@param uploadDate
       The date when the signing certificate was uploaded.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iam/src/main/java/com/amazonaws/services/identitymanagement/model/SigningCertificate.java