Maven Legacy Dependancies

Have your jar file handy and do the below as your convenient

dependency>
    groupid>com.company.jar

artifactid>legasyJar
    version>3.0
    scope>system
    systempath>${basedir}/lib/legasyJar.jar
    optional>true

or else first install the jar in local repository using the below maven command

mvn install:install-file -Dfile=legasyJar.jar -DgroupId=com.microsoft.sqlserver 
-DartifactId=legasyJar -Dversion=3.0 -Dpackaging=jar

Then add it to your project as dependancy

dependency>
  groupid>com.company.jar
artifactid>legasyJar
  version>3.0