package org.jenetics.internal;

import java.time.Duration;
import java.time.Instant;

import org.jenetics.util.StaticObject;

public class time extends StaticObject {
    private time() {}

    public static final long NANOS_PER_SECOND = 1_000_000_000;

    public static Duration minus(final Instant a, final Instant b)  {
        final long seconds = a.getEpochSecond() - b.getEpochSecond();
        final long nanos = a.getNano() - b.getNano();

        return Duration.ofNanos(seconds*NANOS_PER_SECOND + nanos);
    }
}

@@ -1,129 +1,1073 @@
-package org.jenetics.internal;%0A%0Aimport java.time.Duration;%0Aimport java.time.Instant;%0A%0Aimport org.jenetics.util.StaticObject;%0A
+/*%0A * Java Genetic Algorithm Library (@__identifier__@).%0A * Copyright (c) @__year__@ Franz Wilhelmst%C3%B6tter%0A *%0A * Licensed under the Apache License, Version 2.0 (the %22License%22);%0A * you may not use this file except in compliance with the License.%0A * You may obtain a copy of the License at%0A *%0A *      http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A *%0A * Author:%0A *    Franz Wilhelmst%C3%B6tter (franz.wilhelmstoetter@gmx.at)%0A */%0Apackage org.jenetics.internal;%0A%0Aimport java.time.Duration;%0Aimport java.time.Instant;%0A%0Aimport org.jenetics.util.StaticObject;%0A%0A/**%0A * Helper methods for %3Ci%3Etime%3C/i%3E classes.%0A *%0A * @author %3Ca href=%22mailto:franz.wilhelmstoetter@gmx.at%22%3EFranz Wilhelmst%C3%B6tter%3C/a%3E%0A * @since 3.0%0A * @version 3.0 &mdash; %3Cem%3E$Date: 2014-08-01 $%3C/em%3E%0A */
 %0Apub

Add javadoc.