Sumac.

    https://www.sumac.com/
    https://www.sumac.com/product/
    https://www.sumac.com/get-started-general/
    http://smansoft.com/sumac/ (screenshots)

    This is a big CRM tool for control of donation activity of persons and organizations.
    Projects of the Sumac Java SE application contain more than 3k classes.

    Technologies and tools:

        - Java 6, Java SE (Awt, Swing), Java WebStart, SQL, Derby Db, MySQL, Jacob,
            BouncyCastle, iText, Java Mail, SSHJ Client, Apache Ant, Apache Maven, JUnit, Mockito,
            Bash, Eclipse, Squirrel Sql Client, Git (Tortoise Git);
        - GitLab, Jira;

Activity:

    - Software development;