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public static void main(String[] args) throws Exception {
    //execute("jdbc:postgresql://localhost:5432/JAVA_Test", "Admin", "123456", "org.postgresql.Driver");
    execute("jdbc:jtds:sqlserver://localhost:5432/Liquibase_JAVA", "sa", "123456!", "net.sourceforge.jtds.jdbc.Driver");
public static void execute(String url, String userName, String password, String driver) throws Exception  {
    DatabaseConnection dbConnection = new DatabaseConnection(url, driver, userName, password);
    Connection conn = dbConnection.getConnection();
    Database database = DatabaseFactory.getInstance().findCorrectDatabaseImplementation(new JdbcConnection(conn));
    String changeLog = "/job_executor/liquibasechangelog/databaseChangeLog.xml";
    Liquibase liquibase = new Liquibase(changeLog, new FileSystemResourceAccessor(), database);
    liquibase.update(null);
    conn.close();
I have my changeLogFile inside my project. It's kind of weird that i'm getting an error changeLogFile.xml does not exists.
Can anyone help me with this, THanks 
                You reference changeLogFile.xml but in your description, but in your code you're using databaseChangeLog.xml. Are you sure the file with the name in the code exists?
– DavidX
                Jan 26, 2018 at 0:57
Most likely your change log file is not there:
/job_executor/liquibasechangelog/databaseChangeLog.xml
but there:
job_executor/liquibasechangelog/databaseChangeLog.xml
Please notice the / missing in the second path so it will be relative, not absolute.
                Did you try to execute       cat job_executor/liquibasechangelog/databaseChangeLog.xml  from the place where you are executing your java?
– Michal Rorat
                Jan 25, 2018 at 23:30
I have fixed it, by adding the liquibasechangelog folder (where my xml files resides) to the build path and then by referring it just by the file name instead of path to the file name
just like this 
  
String changeLog = "databaseChangeLog.xml";
THanks @DavidX @MichalRorat
        
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