code: /*
  WhitespaceAround
  allowEmptyConstructors = (default)false
  allowEmptyMethods = (default)false
  allowEmptyTypes = (default)false
  allowEmptyLoops = (default)false
  allowEmptyLambdas = (default)false
  allowEmptyCatches = (default)false
  ignoreEnhancedForColon = (default)true
  tokens = (default)ASSIGN, BAND, BAND_ASSIGN, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR, \
           BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN, DO_WHILE, EQUAL, GE, GT, LAMBDA, LAND, \
           LCURLY, LE, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, \
           LITERAL_FOR, LITERAL_IF, LITERAL_RETURN, LITERAL_SWITCH, LITERAL_SYNCHRONIZED, \
           LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS, MINUS_ASSIGN, MOD, MOD_ASSIGN, \
           NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION, RCURLY, SL, SLIST, SL_ASSIGN, SR, \
           SR_ASSIGN, STAR, STAR_ASSIGN, LITERAL_ASSERT, TYPE_EXTENSION_AND
  
  
  */
  
  package com.puppycrawl.tools.checkstyle.checks.whitespace.whitespacearound;
  
  import java.util.function.Function;
  
  
  class InputWhitespaceAroundLambda {
      public void foo() {
          Function<Object, String> function = (o)->o.toString(); // 2 violations
      }
  }
  