Coupang does not support TLS v1.0, v1.1 due to security risks.
Therefore, if you receive the following error message when calling openapi, you need to upgrade the TLS version.
javax.net.ssl.SSLException: Received fatal alert: protocol_version
Default protocol version by java version
|Java Version||SSL/TLS Default||Other Supported Versions|
|Java 6||TLS 1.0||TLS 1.1 (update 111 and later), SSLv3.0*|
|Java 7||TLS 1.0||TLS 1.2, TLS 1.1, SSLv3.0*|
|Java 8||TLS 1.2||TLS 1.1, TLS 1.0, SSLv3.0*|
* SSLv3 support disabled in January, 2015 patch releases
※ Reference :
Therefore, if you are using java 6, you must upgrade to java 7 or higher.
Application Server setting
Restart after adding the following command to the JAVA HOME directory setting in the server startup options or the location where the -D option is set.