Ubuntu Build from Source - missing libraries

I am trying to build the source, and am getting the following error:

Downloading: http://repo1.maven.org/maven2/com/microsoft/sqljdbc/4.0/sqljdbc-4.0.jar
Downloading: http://repo1.maven.org/maven2/com/oracle/ojdbc6/12.1.0.2/ojdbc6-12.1.0.2.jar
[INFO] Unable to find resource 'com.microsoft:sqljdbc:jar:4.0' in repository central (http://repo1.maven.org/maven2)
[INFO] Unable to find resource 'com.oracle:ojdbc6:jar:12.1.0.2' in repository central (http://repo1.maven.org/maven2)
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Failed to resolve artifact.

Missing:
----------
1) com.microsoft:sqljdbc:jar:4.0

  Try downloading the file manually from the project website.

  Then, install it using the command:
      mvn install:install-file -DgroupId=com.microsoft -DartifactId=sqljdbc -Dversion=4.0 -Dpackaging=jar -Dfile=/path/to/file

  Alternatively, if you host your own repository you can deploy the file there:
      mvn deploy:deploy-file -DgroupId=com.microsoft -DartifactId=sqljdbc -Dversion=4.0 -Dpackaging=jar -Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id]

  Path to dependency:
        1) org.joget:wflow-jdbc:jar:4.0-SNAPSHOT
        2) com.microsoft:sqljdbc:jar:4.0

2) com.oracle:ojdbc6:jar:12.1.0.2

  Try downloading the file manually from the project website.

  Then, install it using the command:
      mvn install:install-file -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=12.1.0.2 -Dpackaging=jar -Dfile=/path/to/file

  Alternatively, if you host your own repository you can deploy the file there:
      mvn deploy:deploy-file -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=12.1.0.2 -Dpackaging=jar -Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id]

  Path to dependency:
        1) org.joget:wflow-jdbc:jar:4.0-SNAPSHOT
        2) com.oracle:ojdbc6:jar:12.1.0.2

----------
2 required artifacts are missing.

for artifact:
  org.joget:wflow-jdbc:jar:4.0-SNAPSHOT

from the specified remote repositories:
  central ([http://repo1.maven.org/maven2)
]

... A couple of questions...

First, why is it looking for MS SQLServer, or Oracle, when it runs on mysql?

Second, how do I get around this.  I have no experience with Maven, and there doesn't seem to be anyone else that got stuck on this.  I understand the error message says to manually download them, but from where?

thanks.