java.FILE
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  CLASS
    MODIFIER_LIST
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    IDENTIFIER
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    EXTENDS_LIST
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    IMPLEMENTS_LIST
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    LBRACE
    WHITE_SPACE
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      MODIFIER_LIST
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      CODE_BLOCK
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        WHITE_SPACE
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          LPARENTH
          REFERENCE_EXPRESSION
            REFERENCE_PARAMETER_LIST
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            IDENTIFIER
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              LBRACE
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              EXPRESSION_STATEMENT
                METHOD_CALL_EXPRESSION
                  REFERENCE_EXPRESSION
                    REFERENCE_PARAMETER_LIST
                      <empty list>
                    IDENTIFIER
                  EXPRESSION_LIST
                    LPARENTH
                    RPARENTH
                SEMICOLON
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            CODE_BLOCK
              LBRACE
              WHITE_SPACE
              EXPRESSION_STATEMENT
                METHOD_CALL_EXPRESSION
                  REFERENCE_EXPRESSION
                    REFERENCE_PARAMETER_LIST
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                    LPARENTH
                    RPARENTH
                SEMICOLON
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    RBRACE