JQuantify is a Java package providing lightweight statistics describing the frequency and duration of application-specific events. Developers use a simple API to insert count-points or start/stop boundaries at appropriate places within their system.
Now available in Maven Central repository using
    <dependency>
        <groupId>com.berryworks</groupId>
        <artifactId>jquantify</artifactId>
        <version>4.1.3</version>
    </dependency>