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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package org.jgroups.util;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.TimeUnit;

import static org.jgroups.util.Util.printTime;

/**
 * Measures min and max in addition to average
 * @author Bela Ban
 * @since  4.0, 3.6.10
 */
public class AverageMinMax extends Average {
    protected long       min=Long.MAX_VALUE, max=0;
    protected List values;

    public long          min()                        {return min;}
    public long          max()                        {return max;}
    public boolean       usePercentiles()             {return values != null;}
    public AverageMinMax usePercentiles(int capacity) {values=capacity > 0? new ArrayList<>(capacity) : null; return this;}

    public  T add(long num) {
        super.add(num);
        min=Math.min(min, num);
        max=Math.max(max, num);
        if(values != null)
            values.add(num);
        return (T)this;
    }

    public  T merge(T other) {
        if(other.count() == 0)
            return (T)this;
        super.merge(other);
        if(other instanceof AverageMinMax) {
            AverageMinMax o=(AverageMinMax)other;
            this.min=Math.min(min, o.min());
            this.max=Math.max(max, o.max());
            if(this.values != null)
                this.values.addAll(o.values);
        }
        return (T)this;
    }

    public void clear() {
        super.clear();
        if(values != null)
            values.clear();
        min=Long.MAX_VALUE; max=0;
    }

    public String percentiles() {
        if(values == null) return "n/a";
        Collections.sort(values);
        double stddev=stddev();
        return String.format("stddev: %.2f, 50: %d, 90: %d, 99: %d, 99.9: %d, 99.99: %d, 99.999: %d, 100: %d\n",
                             stddev, p(50), p(90), p(99), p(99.9), p(99.99), p(99.999), p(100));
    }

    public String toString() {
        return count == 0? "n/a" :
          String.format("min/avg/max=%,d/%,.2f/%,d%s",
                        min, getAverage(), max, unit == null? "" : " " + Util.suffix(unit));
    }

    public String toString(TimeUnit u) {
        if(count == 0)
            return "n/a";
        return String.format("%s/%s/%s", printTime(min, u), printTime(getAverage(), u), printTime(max, u));
    }

    public void writeTo(DataOutput out) throws IOException {
        super.writeTo(out);
        Bits.writeLongCompressed(min, out);
        Bits.writeLongCompressed(max, out);
    }

    public void readFrom(DataInput in) throws IOException {
        super.readFrom(in);
        min=Bits.readLongCompressed(in);
        max=Bits.readLongCompressed(in);
    }


    protected long p(double percentile) {
        if(values == null)
            return -1;
        int size=values.size();
        int index=(int)(size * (percentile/100.0));
        return values.get(index-1);
    }

    protected double stddev() {
        if(values == null) return -1.0;
        double av=average();
        int size=values.size();
        double variance=values.stream().map(v -> (v - av)*(v - av)).reduce(0.0, Double::sum) / size;
        return Math.sqrt(variance);
    }


}