Main.java

package ru.mak_sim.ydb_test;

import yandex.cloud.sdk.auth.provider.ApiKeyCredentialProvider;
import yandex.cloud.sdk.auth.provider.CredentialProvider;

import java.io.IOException;
import java.nio.file.Path;

public class Main {
    public static void main(String[] args) throws IOException {

        Path sa = Path.of("/path/to/sa_name.json");
        CredentialProvider provider = ApiKeyCredentialProvider.builder()
                .fromFile(sa)
                .enableCache()
                .build();
    }
}