private String getSysPropertyProfileName() {
        return StringUtils.trim(System.getProperty(AWS_PROFILE_SYSTEM_PROPERTY));
    }
TODO The order would make more sense as System Property, Environment Variable, Default
Profile name but we have to keep the current order for backwards compatiblity. Consider
changing this in a future major version.
aws-java-sdk-core/src/main/java/com/amazonaws/auth/profile/internal/AwsProfileNameLoader.java