java.FILE
  PACKAGE_STATEMENT
    MODIFIER_LIST
      ANNOTATION
        AT
        JAVA_CODE_REFERENCE
          IDENTIFIER
          REFERENCE_PARAMETER_LIST
            <empty list>
        ANNOTATION_PARAMETER_LIST
          <empty list>
    WHITE_SPACE
    PACKAGE_KEYWORD
    WHITE_SPACE
    JAVA_CODE_REFERENCE
      IDENTIFIER
      REFERENCE_PARAMETER_LIST
        <empty list>
    SEMICOLON
  IMPORT_LIST
    <empty list>