public ArtifactCoordinates(final String groupId,final String artifactId,final String version,final String classifier){
  this.groupId=groupId;
  this.artifactId=artifactId;
  this.version=version;
  this.classifier=classifier;
}

public ArtifactCoordinates ( final String groupId , final String artifactId , final String version , final String classifier ) { this . groupId = groupId ; this . artifactId = artifactId ; this . version = version ; this . classifier = classifier ; }
construct a new instance .
