test.java.file
  LAMBDA_EXPRESSION
    PARAMETER_LIST
      LPARENTH
      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>
      ERROR_ELEMENT
        <empty list>
      RPARENTH
    WHITE_SPACE
    ARROW
    WHITE_SPACE
    PARENTH_EXPRESSION
      LPARENTH
      LITERAL_EXPRESSION
        NULL_KEYWORD
      RPARENTH