Question 1

How do I set a password for MariaDB4j?

Accepted Answer

You must programmatically configure security via DBConfigurationBuilder, as shown in the sample test—defaults are insecure. Refer to the MariaDB4jSampleTutorialTest for an example.

Question 2

MariaDB4j vs Testcontainers for integration testing?

Accepted Answer

MariaDB4j runs MariaDB natively without Docker, avoiding container overhead, but Testcontainers offers better isolation and newer database versions. Choose based on whether Docker is acceptable in your environment.

Question 3

Why does MariaDB4j fail on my Mac with library errors?

Accepted Answer

MacOS often lacks required shared libraries like openssl@3; install them via Homebrew (e.g., 'brew install openssl@3') or upgrade macOS, as noted in the FAQ's troubleshooting section.

Question 4

Can I use MariaDB4j with the latest MariaDB version?

Accepted Answer

You can use system binaries for newer versions, but the packaged JARs may lag behind. Override dependencies or set custom base directories to control the version, though this adds complexity.

Question 5

Is MariaDB4j stable for long-running development servers?

Accepted Answer

Yes, it's reliable for development and testing, but data durability depends on configuring a persistent data directory—default uses temporary storage wiped on restart.

Question 6

How to run MariaDB4j from the command line?

Accepted Answer

Use the executable mariaDB4j-app JAR with system properties for port and directories: 'java -DmariaDB4j.port=3306 -jar mariaDB4j-app*.jar', as documented in the CLI section.

MariaDB4j

What is MariaDB4j?

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Frequently Asked Questions