Mvn liquibase:diff does NOT return changes

General Discussion
1

I am working on a Spring boot application from IntelliJ and the pom.xml contains the liquibase plugin like this:

        <plugin>
                <groupId>org.liquibase</groupId>
                <artifactId>liquibase-maven-plugin</artifactId>
                <version>4.30.0</version>
                <configuration>
                    <changeLogFile>src/main/resources/db/changelog/changelog-master.xml</changeLogFile>
                    <diffChangeLogFile>src/main/resources/db/migrations/${timestamp}_changelog.xml</diffChangeLogFile>
                    <url>jdbc:postgresql://177.45.56.76:5432/mydb</url>
                    <driver>org.postgresql.Driver</driver>
                    <username>user</username>
                    <password>password</password>
                    <referenceUrl>hibernate:spring:com.bostek.domain?dialect=org.hibernate.dialect.PostgreSQLDialect</referenceUrl>
                    <verbose>true</verbose>
                    <logging>debug</logging>
                </configuration>
                <dependencies>
                    <dependency>
                        <groupId>org.liquibase</groupId>
                        <artifactId>liquibase-core</artifactId>
                        <version>4.30.0</version>
                    </dependency>
                    <dependency>
                        <groupId>org.liquibase.ext</groupId>
                        <artifactId>liquibase-hibernate6</artifactId>
                        <version>4.30.0</version>
                    </dependency>
                    <dependency>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-starter-data-jpa</artifactId>
                        <version>3.4.0</version>
                    </dependency>
                    <dependency>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-starter-validation</artifactId>
                        <version>3.4.0</version>
                    </dependency>
                    <dependency>
                        <groupId>org.hibernate.orm</groupId>
                        <artifactId>hibernate-core</artifactId>
                        <version>6.6.2.Final</version>
                    </dependency>
                    <dependency>
                        <groupId>org.hibernate</groupId>
                        <artifactId>hibernate-entitymanager</artifactId>
                        <version>6.0.0.Alpha7</version>
                    </dependency>
                </dependencies>
            </plugin>

As you can see I compare the model with the database.
The problem is that each time I run the command “mvn liquibase:diff”, liquibase plugin does not return the changes between the model and the database, but anything else that already exists in the databasechangelog table.
What am I doing wrong?
Liquibase is supposed to be an easy tool that does the job, but it has taken me a lot of time to find a solution.
Could you please help me?

2

@stratosb it would be helpful to see the logs.

One thing I see that differs from the Liquibase/Hibernate tutorial docs is that the path specified for your diffChangeLogFile is not prefixed with the ${project.basedir} variable.

<diffChangeLogFile>
    ${project.basedir}/src/main/resources/db/migrations/${maven.build.timestamp}_changelog.xml
</diffChangeLogFile>