static <T> String join(T[] array, String separator) {
    return org.antlr.v4.runtime.misc.Utils.join(array, separator);
  }
Note. This stub is to resolve name conflict with ANTLR generated source using org.antlr.v4.runtime.misc.Utils.join
hplsql/src/main/java/org/apache/hive/hplsql/Utils.java