在现有maven项目中集成JMH代码

Question

JMH建议您使用他们的原型创建项目。通过将我的代码作为依赖项包含在这个生成的项目中，我能够以这种方式运行我的基准测试代码。

但是，我现在尝试使用配置文件将基准测试直接集成到我的项目源代码中

<profiles>
    <profile>
        <id>benchmark</id>
        <build>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-shade-plugin</artifactId>
                    <version>2.2</version>
                    <executions>
                        <execution>
                            <phase>package</phase>
                            <goals>
                                <goal>shade</goal>
                            </goals>
                            <configuration>
                                <finalName>${uberjar.name}</finalName>
                                <transformers>
                                    <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                        <mainClass>org.openjdk.jmh.Main</mainClass>
                                    </transformer>
                                </transformers>
                                <filters>
                                    <filter>
                                        <!--
                                            Shading signed JARs will fail without this.
                                            http://stackoverflow.com/questions/999489/invalid-signature-file-when-attempting-to-run-a-jar
                                        -->
                                        <artifact>*:*</artifact>
                                        <excludes>
                                            <exclude>META-INF/*.SF</exclude>
                                            <exclude>META-INF/*.DSA</exclude>
                                            <exclude>META-INF/*.RSA</exclude>
                                        </excludes>
                                    </filter>
                                </filters>
                            </configuration>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>
        <dependencies>
            <dependency>
                <groupId>org.openjdk.jmh</groupId>
                <artifactId>jmh-core</artifactId>
                <version>${jmh.version}</version>
            </dependency>
            <dependency>
                <groupId>org.openjdk.jmh</groupId>
                <artifactId>jmh-generator-annprocess</artifactId>
                <version>${jmh.version}</version>
            </dependency>
        </dependencies>
    </profile>
</profiles>

当我这样做并运行生成的基准测试jar时，我得到一个不兼容的类更改错误

Exception in thread "main" java.lang.IncompatibleClassChangeError: Implementing class
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at org.openjdk.jmh.Main.main(Main.java:44)

任何指点将不胜感激

Answer 1

你真的需要一个单独的pom的JMH。我会使用maven调用器插件来调用它。