java.FILE
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  CLASS
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    CLASS_KEYWORD
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    IDENTIFIER
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    EXTENDS_LIST
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    IMPLEMENTS_LIST
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    LBRACE
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    FIELD
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      IDENTIFIER
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      EQ
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      ARRAY_INITIALIZER_EXPRESSION
        LBRACE
        WHITE_SPACE
        LITERAL_EXPRESSION
          INTEGER_LITERAL
        WHITE_SPACE
        RBRACE
      SEMICOLON
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    RBRACE