README.md

Repro on Google Cloud

Create VM

gcloud compute instances create test-instance \
 --zone=us-east1-b \
 --machine-type=n1-standard-1 \
 --image=debian-9-drawfork-v20181101 \
 --image-project=eip-images \
 --boot-disk-size=100GB \
 --boot-disk-type=pd-standard \
 --boot-disk-device-name=test-instance

SSH to VM

gcloud compute ssh --zone "us-east1-b" "test-instance"

Install Java

sudo apt-get update
sudo apt-get install default-jdk
java -version
openjdk version "1.8.0_181"
OpenJDK Runtime Environment (build 1.8.0_181-8u181-b13-2~deb9u1-b13)
OpenJDK 64-Bit Server VM (build 25.181-b13, mixed mode)

Install Maven

wget https://www-eu.apache.org/dist/maven/maven-3/3.6.0/binaries/apache-maven-3.6.0-bin.tar.gz
tar -zxf apache-maven-3.6.0-bin.tar.gz
PATH=$PATH:$HOME/apache-maven-3.6.0/bin
mvn -version
Apache Maven 3.6.0 (97c98ec64a1fdfee7767ce5ffb20918da4f719f3; 2018-10-24T18:41:47Z)
Maven home: /home/xxx/apache-maven-3.6.0
Java version: 1.8.0_181, vendor: Oracle Corporation, runtime: /usr/lib/jvm/java-8-openjdk-amd64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "4.9.0-8-amd64", arch: "amd64", family: "unix"

Create the app

mkdir jetty-test
cd jetty-test
vi pom.xml # copy pom file
mkdir -p src/main/java/io/opencensus/http
vi src/main/java/io/opencensus/http/HttpClientApp.java # Copy code
mkdir -p src/test/java/io/opencensus/http

HttpClientApp.java

package io.opencensus.http;

import org.eclipse.jetty.client.HttpClient;
import org.eclipse.jetty.client.api.ContentResponse;

/**
 * Excercise the Jetty HttpClient
 *
 */
public class HttpClientApp  {

  public int sendRequest() throws Exception {
    System.out.println("Sending request");
    HttpClient httpClient = new HttpClient();
    httpClient.start();
    // Do not expect to be able to connect to a https URL with the parameterless
    // HttpClient() constructor
    ContentResponse response = httpClient.GET("https://opencensus.io/community");
    return response.getStatus();
  }

  public static void main( String[] args ) {
    HttpClientApp app = new HttpClientApp();
    try {
      app.sendRequest();
    } catch(Exception e) {
        e.printStackTrace();
    }
  }
}

HttpClientAppTest.java

package io.opencensus.http;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * Unit test for HttpClientApp.
 */
public class HttpClientAppTest extends TestCase {
    
  /**
   * Create the test case
   *
   * @param testName name of the test case
   */
  public HttpClientAppTest( String testName ) {
    super( testName );
    }

  /**
    * @return the suite of tests being tested
   */
  public static Test suite() {
    return new TestSuite( HttpClientAppTest.class );
  }

  public void testSendRequest() {
    HttpClientApp app = new HttpClientApp();
    try {
        int status = app.sendRequest();
        System.err.println("Got status: " + status);
        assert false : "Do not expect to get here";
    } catch(Exception e) {
        System.err.println("Got an error, as expected.");
    }
  }
}

pom.xml

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>io.opencensus.http</groupId>
  <artifactId>jetty-test</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>jetty-test</name>
  <url>http://maven.apache.org</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   <jetty.version>9.4.14.v20181114</jetty.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.eclipse.jetty</groupId>
      <artifactId>jetty-client</artifactId>
      <version>${jetty.version}</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <configuration>
          <useSystemClassLoader>false</useSystemClassLoader>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>