Manual java project building with third-party dependency

Main.java

/**
 * Manual java project building with third-party dependency
 * 
 * 1. Download Jackon libraries to the root of project:
 *  - https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-core/2.18.2/jackson-core-2.18.2.jar
 *  - https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-databind/2.18.2/jackson-databind-2.18.2.jar
 *  - https://repo1.maven.org/maven2/com/fasterxml/jackson/core/jackson-annotations/2.18.2/jackson-annotations-2.18.2.jar
 * 
 * 2. Compile the code:
 * javac --enable-preview --release 23 -cp jackson-databind-2.18.2.jar:jackson-core-2.18.2.jar:jackson-annotations-2.18.2.jar Main.java -d build
 * 
 * 3. Run the code:
 * java --enable-preview -cp build:./jackson-databind-2.18.2.jar:./jackson-core-2.18.2.jar:./jackson-annotations-2.18.2.jar Main
 */
import java.util.HashMap;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.core.JsonProcessingException;

void main(String[] args) throws JsonProcessingException {
    ObjectMapper objectMapper = new ObjectMapper();

    HashMap<String, String> person = new HashMap<>(); 
    person.put("name", "John");
    person.put("surname", "Doe");

    System.out.println(objectMapper.writeValueAsString(person));
}