public Nodejs overwrite(final boolean overwrite) {
    if (overwrite) {
      this.coptions = EnumSet.of(StandardCopyOption.REPLACE_EXISTING);
    } else {
      this.coptions = Collections.emptySet();
    }
    return this;
  }
public Nodejs overwrite(final boolean overwrite) {
    if (overwrite) {
      this.coptions = EnumSet.of(StandardCopyOption.REPLACE_EXISTING);
    } else {
      this.coptions = Collections.emptySet();
    }
    return this;
  }
public Nodejs overwrite ( final boolean overwrite ) { if ( overwrite ) { this . coptions = EnumSet . of ( StandardCopyOption . REPLACE_EXISTING ) ; } else { this . coptions = Collections . emptySet ( ) ; } return this ; }
Force to unpack library files every {@link #exec(String)} call. This is useful for development
and testing. By default files are unpacked just once (overwrite = false).

@param overwrite True, to force overwrite.
@return
Force to unpack library files every { @link #exec ( String ) } call . This is useful for development and testing . By default files are unpacked just once ( overwrite = false ) .