benchmarks: simplify way to run benchmarks

Motivation:
JMH provided a wide mechanisms to control benchmark execution. However
we have lost it due to using custom runner.

Modification:
Use jmh runner to make use of full tool set of JMH.

Result:
more flexible benchmarking.

Acked-by: Lea Morschel
Target: master

oncrpc4j-benchmark/pom.xml

@@ -12,38 +12,6 @@
     <artifactId>oncrpc4j-benchmarks</artifactId>
     <packaging>jar</packaging>
 
-    <profiles>
-        <profile>
-            <id>benchmark</id>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.codehaus.mojo</groupId>
-                        <artifactId>exec-maven-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <goals>
-                                    <goal>exec</goal>
-                                </goals>
-                                <phase>integration-test</phase>
-                            </execution>
-                        </executions>
-                        <configuration>
-                            <executable>java</executable>
-                            <classpathScope>test</classpathScope>
-                            <arguments>
-                                <argument>-classpath</argument>
-                                <classpath />
-                                <argument>org.dcache.oncrpc4j.benchmarks.BenchmarkRunner</argument>
-                                <argument>.*</argument>
-                            </arguments>
-                        </configuration>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-    </profiles>
-
     <!--
         EXTERNAL DEPENDENCIES
     -->
@@ -75,7 +43,53 @@
             <artifactId>oncrpc4j-core</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-nop</artifactId>
+            <version>1.7.36</version>
+        </dependency>
 
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.3.0</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <transformers>
+                                <transformer
+                                  implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                    <mainClass>org.openjdk.jmh.Main</mainClass>
+                                </transformer>
+                                <transformer
+                                  implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
+                            </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>
 </project>

oncrpc4j-benchmark/src/main/java/org/dcache/oncrpc4j/benchmarks/BenchmarkRunner.java

@@ -1,5 +1,6 @@
 package org.dcache.oncrpc4j.benchmarks;
 
+import java.io.IOException;
 import org.openjdk.jmh.results.format.ResultFormatType;
 import org.openjdk.jmh.runner.Runner;
 import org.openjdk.jmh.runner.RunnerException;
@@ -12,12 +13,7 @@
  */
 public class BenchmarkRunner {
 
-    public static void main(String[] args) throws RunnerException {
-        Options opt = new OptionsBuilder()
-                .include(TlsOverhead.class.getSimpleName())
-                .resultFormat(ResultFormatType.JSON)
-                .build();
-
-        new Runner(opt).run();
+    public static void main(String[] args) throws RunnerException, IOException {
+        org.openjdk.jmh.Main.main(args);
     }
 }

pom.xml

@@ -77,7 +77,7 @@
     <junit.version>4.13.1</junit.version>
     <mockito-core.version>3.6.0</mockito-core.version>
     <logback-classic.version>1.2.3</logback-classic.version>
-    <jmh.version>1.21</jmh.version>
+    <jmh.version>1.35</jmh.version>
   </properties>