java.FILE
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  CLASS
    MODIFIER_LIST
      PUBLIC_KEYWORD
    WHITE_SPACE
    ENUM_KEYWORD
    WHITE_SPACE
    IDENTIFIER
    TYPE_PARAMETER_LIST
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    EXTENDS_LIST
      <empty list>
    IMPLEMENTS_LIST
      <empty list>
    WHITE_SPACE
    LBRACE
    ERROR_ELEMENT
      <empty list>
    WHITE_SPACE
    MODIFIER_LIST
      PRIVATE_KEYWORD
    WHITE_SPACE
    TYPE
      JAVA_CODE_REFERENCE
        IDENTIFIER
        REFERENCE_PARAMETER_LIST
          <empty list>
    ERROR_ELEMENT
      <empty list>
    WHITE_SPACE
    RBRACE