test.java.file
  LAMBDA_EXPRESSION
    PARAMETER_LIST
      LPARENTH
      PARAMETER
        MODIFIER_LIST
          ANNOTATION
            AT
            JAVA_CODE_REFERENCE
              IDENTIFIER
              REFERENCE_PARAMETER_LIST
                <empty list>
            ANNOTATION_PARAMETER_LIST
              <empty list>
        WHITE_SPACE
        TYPE
          JAVA_CODE_REFERENCE
            IDENTIFIER
            REFERENCE_PARAMETER_LIST
              <empty list>
        WHITE_SPACE
        IDENTIFIER
      RPARENTH
    WHITE_SPACE
    ARROW
    WHITE_SPACE
    PARENTH_EXPRESSION
      LPARENTH
      LITERAL_EXPRESSION
        NULL_KEYWORD
      RPARENTH