Using JMH in a Maven project.

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <!-- Benchmark code goes into src/test/java -->

  <dependencies>
    <dependency>
      <groupId>org.openjdk.jmh</groupId>
      <artifactId>jmh-core</artifactId>
      <version>1.0-SNAPSHOT</version>
      <scope>test</scope>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>exec-maven-plugin</artifactId>
        <executions>
          <execution>
            <id>run-benchmarks</id>
            <phase>integration-test</phase>
            <goals>
              <goal>exec</goal>
            </goals>
            <configuration>
              <classpathScope>test</classpathScope>
              <executable>java</executable>
              <arguments>
                <argument>-classpath</argument>
                <classpath/>
                <argument>org.openjdk.jmh.Main</argument>
                <argument>.*</argument>
              </arguments>
            </configuration>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>

</project>

<executable>${java.home}/bin/java</executable> will make sure the benchmarks run with the same Java as the build does.