package com.tngtech.jgiven.report.model;

public class ReportStatistics {
    public int numClasses;
    public int numScenarios;
    public int numCases;
    public int numFailedCases;
    public int numSteps;
    public int durationInNanos;
}

package com.tngtech.jgiven.report.model;

public class ReportStatistics {
    public int numClasses;
    public int numScenarios;
    public int numCases;
    public int numFailedCases;
    public int numSteps;
    public long durationInNanos;
}

use long instead of int to avoid overflow