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vvedenin
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Add other_examples to Hello Worlds
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‎helloworlds/5.0-other-examples/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.github.vedenin</groupId>
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<artifactId>5.0-other-examples</artifactId>
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<version>0.1</version>
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<packaging>jar</packaging>
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<name>Other Examples</name>
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<prerequisites>
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<maven>3.0</maven>
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</prerequisites>
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<dependencies>
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<dependency>
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<groupId>org.openjdk.jmh</groupId>
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<artifactId>jmh-core</artifactId>
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<version>${jmh.version}</version>
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</dependency>
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<dependency>
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<groupId>org.openjdk.jmh</groupId>
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<artifactId>jmh-generator-annprocess</artifactId>
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<version>${jmh.version}</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>org.eclipse.collections</groupId>
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<artifactId>eclipse-collections-api</artifactId>
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<version>7.0.1</version>
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</dependency>
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<dependency>
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<groupId>org.eclipse.collections</groupId>
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<artifactId>eclipse-collections</artifactId>
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<version>7.0.1</version>
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</dependency>
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<dependency>
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<groupId>org.eclipse.collections</groupId>
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<artifactId>eclipse-collections-testutils</artifactId>
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<version>7.0.1</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.eclipse.collections</groupId>
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<artifactId>eclipse-collections-forkjoin</artifactId>
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<version>7.0.1</version>
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</dependency>
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<dependency>
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<groupId>com.google.guava</groupId>
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<artifactId>guava</artifactId>
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<version>18.0</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-collections4</artifactId>
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<version>4.0</version>
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</dependency>
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<dependency>
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<groupId>commons-io</groupId>
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<artifactId>commons-io</artifactId>
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<version>2.4</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-lang3</artifactId>
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<version>3.0</version>
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</dependency>
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<dependency>
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<groupId>commons-lang</groupId>
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<artifactId>commons-lang</artifactId>
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<version>2.6</version>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-context</artifactId>
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<version>4.2.4.RELEASE</version>
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</dependency>
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</dependencies>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<jmh.version>1.11.3</jmh.version>
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<javac.target>1.8</javac.target>
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<uberjar.name>benchmarks</uberjar.name>
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</properties>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.1</version>
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<configuration>
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<compilerVersion>${javac.target}</compilerVersion>
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<source>${javac.target}</source>
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<target>${javac.target}</target>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-shade-plugin</artifactId>
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<version>2.2</version>
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<executions>
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<execution>
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<phase>package</phase>
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<goals>
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<goal>shade</goal>
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</goals>
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<configuration>
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<finalName>${uberjar.name}</finalName>
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<transformers>
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<transformer
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implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
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<mainClass>org.openjdk.jmh.Main</mainClass>
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</transformer>
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</transformers>
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<filters>
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<filter>
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<!--
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Shading signed JARs will fail without this.
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http://stackoverflow.com/questions/999489/invalid-signature-file-when-attempting-to-run-a-jar
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-->
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<artifact>*:*</artifact>
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<excludes>
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<exclude>META-INF/*.SF</exclude>
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<exclude>META-INF/*.DSA</exclude>
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<exclude>META-INF/*.RSA</exclude>
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</excludes>
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</filter>
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</filters>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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<pluginManagement>
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<plugins>
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<plugin>
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<artifactId>maven-clean-plugin</artifactId>
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<version>2.5</version>
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</plugin>
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<plugin>
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<artifactId>maven-deploy-plugin</artifactId>
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<version>2.8.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-install-plugin</artifactId>
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<version>2.5.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-jar-plugin</artifactId>
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<version>2.4</version>
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</plugin>
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<plugin>
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<artifactId>maven-javadoc-plugin</artifactId>
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<version>2.9.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-resources-plugin</artifactId>
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<version>2.6</version>
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</plugin>
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<plugin>
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<artifactId>maven-site-plugin</artifactId>
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<version>3.3</version>
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</plugin>
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<plugin>
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<artifactId>maven-source-plugin</artifactId>
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<version>2.2.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>2.17</version>
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</plugin>
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</plugins>
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</pluginManagement>
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</build>
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</project>

‎helloworlds/5.0-other-examples/src/main/java/other_examples/ConvertBigStringToInputStreamBenchmark.java

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package other_examples;
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import com.google.common.io.CharSource;
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import org.apache.commons.io.IOUtils;
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import org.apache.commons.io.input.ReaderInputStream;
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import org.openjdk.jmh.annotations.*;
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import org.openjdk.jmh.runner.Runner;
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import org.openjdk.jmh.runner.RunnerException;
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import org.openjdk.jmh.runner.options.Options;
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import org.openjdk.jmh.runner.options.OptionsBuilder;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.nio.charset.StandardCharsets;
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import java.util.concurrent.TimeUnit;
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/**
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* Created by vvedenin on 2/15/2016.
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*/
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@State(Scope.Benchmark)
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public class ConvertBigStringToInputStreamBenchmark {
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private static String test1;
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/* 1. Using ToInputStream of Apache Utils */
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@Benchmark
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public InputStream apacheToInputStream() throws IOException {
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return IOUtils.toInputStream(test1, StandardCharsets.UTF_8);
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}
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/* 2. Using JDK */
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@Benchmark
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public InputStream jdkByteArrayInputStream() throws IOException {
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return new ByteArrayInputStream(test1.getBytes(StandardCharsets.UTF_8));
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}
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/* 3. Using ReaderInputStream of Apache Utils */
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@Benchmark
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public InputStream apacheReaderInputStream() throws IOException {
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return new ReaderInputStream(CharSource.wrap(test1).openStream());
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}
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/* 4. Using Apache Utils and InputStreamReader*/
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@Benchmark
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public InputStream apacheInputStreamReader() throws IOException {
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return IOUtils.toInputStream(test1);
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}
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@TearDown(Level.Iteration)
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public void tearDown() {
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String test = "test184768612876481276487612876417826487216478216784621784672816478216784621784621786478216478216784261784621782178647281647821647821697421687126784621874621786478216478216874";
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StringBuilder builder = new StringBuilder(test);
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for(int i = 0; i< 1000; i++) {
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builder.append(test);
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}
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test1 = builder.toString();
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System.out.println(test1.length());
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}
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public static void main(String[] args) throws RunnerException {
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Options opt = new OptionsBuilder()
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.include(ConvertStringToInputStreamBenchmark.class.getSimpleName())
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.timeUnit(TimeUnit.MICROSECONDS)
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.warmupIterations(5)
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.measurementIterations(50)
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.forks(1)
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.mode(Mode.AverageTime)
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.build();
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new Runner(opt).run();
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}
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}

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