code: public void setSource(String v) {
      if (Keyword_Type.featOkTst && ((Keyword_Type)jcasType).casFeat_source == null)
        jcasType.jcas.throwFeatMissing("source", "de.julielab.jules.types.Keyword");
      jcasType.ll_cas.ll_setStringValue(addr, ((Keyword_Type)jcasType).casFeatCode_source, v);}
docs: setter for source - sets Tthe keyword source (terminology), O
  @generated
  @param v value to set into the feature