$ javac Test.java

$

$ cat Test.java
import java.util.function.BiFunction;

/**
 * A test class to highlight a violation issue.
 */
public class Test {
  /**
   * A lambda, for the purpose of illustrating the issue.
   */
  private static final BiFunction<String,String,String> FUNCTION = (a,b) -> { // Violation -- no space after comma
    return "Hello World, " + a + " and " + b;
  };

  /**
   * Entry point of the application.
   */
  public static void main(String [] args) {
    final Test test = new Test();

    test.doSomething("Lucy","Ricky");
  }

  /**
   * Runs the lambda.
   */
  public void doSomething(final String arg1,final String arg2) { // Violation -- no space after comma
    System.out.println(FUNCTION.apply(arg1,arg2)); // Violation -- no space after comma
  }
}

Starting audit...
Audit done.