https://github.com/AuthorizeNet/sdk-java
Requirements
JDK 1.5.0 to JDK 1.8.0
Ant 1.6.2 or higher (build SDK only)
Maven 2.2.0 or higher (build SDK only)
An Authorize.Net account (see Registration & Configuration section below) Note 1: Support for building the SDK with either Ant or Maven has been made. Please see the respective build processes below. All initial jars and docs were built with Ant, however.
Note 2: Support for higher versions of JDK (>= 1.9.0) has not been made available.
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When will you be able to support JDK 11, apparently it will be EOL in 7/1/2022?
