How to configure Jetty 9 to listen to multiple ports using Gretty

Question

How do I configure Jetty 9 to listen to multiple ports using Gretty. I just want to configure Jetty to listen to more than one port. I don't want multiple instances nor multiple webapps, just one Jetty, one webapp, but listening to 2 or more ports.

I have tried adding serverConfigFile = file("src/main/webapp/WEB-INF/jetty-webserver.xml") in the Gretty configuration but then I get the error below.

jetty-webserver.xml

<Configure id="Server" class="org.eclipse.jetty.server.Server">
    <Call name="addConnector">
      <Arg>
          <New class="org.eclipse.jetty.server.nio.SelectChannelConnector">
            <Set name="host"><Property name="jetty.host" /></Set>
            <Set name="port"><Property name="jetty.port" default="8080"/></Set>
            <Set name="maxIdleTime">300000</Set>
            <Set name="Acceptors">2</Set>
            <Set name="statsOn">false</Set>
            <Set name="confidentialPort">8443</Set>
        <Set name="lowResourcesConnections">20000</Set>
        <Set name="lowResourcesMaxIdleTime">5000</Set>
          </New>
      </Arg>
    </Call>

    <Call name="addConnector">
      <Arg>
          <New class="org.eclipse.jetty.server.nio.SelectChannelConnector">
            <Set name="host"><Property name="jetty.host" /></Set>
            <Set name="port"><Property name="jetty.port" default="8081"/></Set>
            <Set name="maxIdleTime">300000</Set>
            <Set name="Acceptors">2</Set>
            <Set name="statsOn">false</Set>
        <Set name="lowResourcesConnections">20000</Set>
        <Set name="lowResourcesMaxIdleTime">5000</Set>
          </New>
      </Arg>
    </Call>
</Configure>

Exception in thread "main" java.lang.ClassNotFoundException: org.eclipse.jetty.server.nio.SelectChannelConnector at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.eclipse.jetty.util.Loader.loadClass(Loader.java:86) at org.eclipse.jetty.xml.XmlConfiguration$JettyXmlConfiguration.nodeClass(XmlConfiguration.java:364) at org.eclipse.jetty.xml.XmlConfiguration$JettyXmlConfiguration.newObj(XmlConfiguration.java:754) at org.eclipse.jetty.xml.XmlConfiguration$JettyXmlConfiguration.itemValue(XmlConfiguration.java:1125) at org.eclipse.jetty.xml.XmlConfiguration$JettyXmlConfiguration.value(XmlConfiguration.java:1030) at org.eclipse.jetty.xml.XmlConfiguration$JettyXmlConfiguration.call(XmlConfiguration.java:721) at org.eclipse.jetty.xml.XmlConfiguration$JettyXmlConfiguration.configure(XmlConfiguration.java:417) at org.eclipse.jetty.xml.XmlConfiguration$JettyXmlConfiguration.configure(XmlConfiguration.java:298) at org.eclipse.jetty.xml.XmlConfiguration.configure(XmlConfiguration.java:248) at org.eclipse.jetty.xml.XmlConfiguration$configure.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:128) at org.akhikhl.gretty.JettyConfigurerImpl.applyJettyXml(JettyConfigurerImpl.groovy:63) at org.akhikhl.gretty.JettyConfigurer$applyJettyXml$0.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:136) at org.akhikhl.gretty.JettyServerConfigurer.createAndConfigureServer(JettyServerConfigurer.groovy:65) at org.akhikhl.gretty.JettyServerConfigurer.createAndConfigureServer(JettyServerConfigurer.groovy) at org.akhikhl.gretty.JettyServerConfigurer$createAndConfigureServer.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120) at org.akhikhl.gretty.JettyServerManager.startServer(JettyServerManager.groovy:44) at org.akhikhl.gretty.ServerManager$startServer$0.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:128) at org.akhikhl.gretty.Runner.run(Runner.groovy:121) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:210) at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.call(PogoMetaMethodSite.java:71) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120) at org.akhikhl.gretty.Runner.main(Runner.groovy:48) Exception in thread "Thread-29" org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.8.0_191\bin\java.exe'' finished with non-zero exit value 1 at org.gradle.process.internal.DefaultExecHandle$ExecResultImpl.assertNormalExitValue(DefaultExecHandle.java:396) at org.gradle.process.internal.DefaultJavaExecAction.execute(DefaultJavaExecAction.java:38) at org.gradle.process.internal.DefaultExecActionFactory.javaexec(DefaultExecActionFactory.java:129) at org.gradle.api.internal.project.DefaultProject.javaexec(DefaultProject.java:1103) at org.gradle.api.internal.project.DefaultProject.javaexec(DefaultProject.java:1098) at org.gradle.api.Project$javaexec$6.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:127) at org.akhikhl.gretty.DefaultLauncher.javaExec(DefaultLauncher.groovy:93) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:104) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:326) at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:352) at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:68) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:51) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:156) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:168) at org.akhikhl.gretty.LauncherBase$_launchThread_closure4.doCall(LauncherBase.groovy:259) at org.akhikhl.gretty.LauncherBase$_launchThread_closure4.doCall(LauncherBase.groovy) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:104) at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:326) at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:264) at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1041) at groovy.lang.Closure.call(Closure.java:411) at groovy.lang.Closure.call(Closure.java:405) at groovy.lang.Closure.run(Closure.java:492) at java.lang.Thread.run(Thread.java:748)

I have looked at this post and looking for the solution with Gretty. how to configure jetty to listen to multiple ports

Thanks!

Answer 1

Your Gretty configuration is fine. Your problem is with your new jetty-webserver.xml configuration. Take a look to Jetty 9.x documentation:jetty connector docs (look at chapter "HTTP Configuration")

Jetty provides a set of sample configuration files, e.g. jetty-http.xml

Take jetty-http.xml content and modify to add a new http connector like this (v9.4.x):

<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_3.dtd">
<Configure id="Server" class="org.eclipse.jetty.server.Server">

  <!-- =========================================================== -->
  <!-- Add a HTTP Connector.                                       -->
  <!-- Configure an o.e.j.server.ServerConnector with a single     -->
  <!-- HttpConnectionFactory instance using the common httpConfig  -->
  <!-- instance defined in jetty.xml                               -->
  <!--                                                             -->
  <!-- Consult the javadoc of o.e.j.server.ServerConnector and     -->
  <!-- o.e.j.server.HttpConnectionFactory for all configuration    -->
  <!-- that may be set here.                                       -->
  <!-- =========================================================== -->
  <Call name="addConnector">
    <Arg>
      <New id="httpConnector" class="org.eclipse.jetty.server.ServerConnector">
        <Arg name="server"><Ref refid="Server" /></Arg>
        <Arg name="acceptors" type="int"><Property name="jetty.http.acceptors" deprecated="http.acceptors" default="-1"/></Arg>
        <Arg name="selectors" type="int"><Property name="jetty.http.selectors" deprecated="http.selectors" default="-1"/></Arg>
        <Arg name="factories">
          <Array type="org.eclipse.jetty.server.ConnectionFactory">
            <Item>
              <New class="org.eclipse.jetty.server.HttpConnectionFactory">
                <Arg name="config"><Ref refid="httpConfig" /></Arg>
                <Arg name="compliance"><Call class="org.eclipse.jetty.http.HttpCompliance" name="valueOf"><Arg><Property name="jetty.http.compliance" default="RFC7230_LEGACY"/></Arg></Call></Arg>
              </New>
            </Item>
          </Array>
        </Arg>
        <Set name="host"><Property name="jetty.http.host" deprecated="jetty.host" /></Set>
        <Set name="port"><Property name="jetty.http.port" deprecated="jetty.port" default="8080" /></Set>
        <Set name="idleTimeout"><Property name="jetty.http.idleTimeout" deprecated="http.timeout" default="30000"/></Set>
        <Set name="acceptorPriorityDelta"><Property name="jetty.http.acceptorPriorityDelta" deprecated="http.acceptorPriorityDelta" default="0"/></Set>
        <Set name="acceptQueueSize"><Property name="jetty.http.acceptQueueSize" deprecated="http.acceptQueueSize" default="0"/></Set>
        <Get name="SelectorManager">
          <Set name="connectTimeout"><Property name="jetty.http.connectTimeout" default="15000"/></Set>
        </Get>
      </New>
    </Arg>
  </Call>
<Call name="addConnector">
    <Arg>
      <New id="httpConnector2" class="org.eclipse.jetty.server.ServerConnector">
        <Arg name="server"><Ref refid="Server" /></Arg>
        <Arg name="acceptors" type="int"><Property name="jetty.http.acceptors" deprecated="http.acceptors" default="-1"/></Arg>
        <Arg name="selectors" type="int"><Property name="jetty.http.selectors" deprecated="http.selectors" default="-1"/></Arg>
        <Arg name="factories">
          <Array type="org.eclipse.jetty.server.ConnectionFactory">
            <Item>
              <New class="org.eclipse.jetty.server.HttpConnectionFactory">
                <Arg name="config"><Ref refid="httpConfig" /></Arg>
                <Arg name="compliance"><Call class="org.eclipse.jetty.http.HttpCompliance" name="valueOf"><Arg><Property name="jetty.http.compliance" default="RFC7230_LEGACY"/></Arg></Call></Arg>
              </New>
            </Item>
          </Array>
        </Arg>
        <Set name="host"><Property name="jetty.http.host" deprecated="jetty.host" /></Set>
        <Set name="port"><Property name="jetty.http.port" deprecated="jetty.port" default="8081" /></Set>
        <Set name="idleTimeout"><Property name="jetty.http.idleTimeout" deprecated="http.timeout" default="30000"/></Set>
        <Set name="acceptorPriorityDelta"><Property name="jetty.http.acceptorPriorityDelta" deprecated="http.acceptorPriorityDelta" default="0"/></Set>
        <Set name="acceptQueueSize"><Property name="jetty.http.acceptQueueSize" deprecated="http.acceptQueueSize" default="0"/></Set>
        <Get name="SelectorManager">
          <Set name="connectTimeout"><Property name="jetty.http.connectTimeout" default="15000"/></Set>
        </Get>
      </New>
    </Arg>
  </Call>
</Configure>

*Replace 8081 port for your new port number in httpConnector2.

EDITED: Added XML SCHEMA headers.

EDITED 2: Sample configuration for Jetty v9.2.x:

<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_3.dtd">


<Configure id="Server" class="org.eclipse.jetty.server.Server">

  <!-- =========================================================== -->
  <!-- Add a HTTP Connector.                                       -->
  <!-- Configure an o.e.j.server.ServerConnector with a single     -->
  <!-- HttpConnectionFactory instance using the common httpConfig  -->
  <!-- instance defined in jetty.xml                               -->
  <!--                                                             -->
  <!-- Consult the javadoc of o.e.j.server.ServerConnector and     -->
  <!-- o.e.j.server.HttpConnectionFactory for all configuration    -->
  <!-- that may be set here.                                       -->
  <!-- =========================================================== -->
  <Call name="addConnector">
    <Arg>
      <New class="org.eclipse.jetty.server.ServerConnector">
        <Arg name="server"><Ref refid="Server" /></Arg>
        <Arg name="acceptors" type="int"><Property name="http.acceptors" default="-1"/></Arg>
        <Arg name="selectors" type="int"><Property name="http.selectors" default="-1"/></Arg>
        <Arg name="factories">
          <Array type="org.eclipse.jetty.server.ConnectionFactory">
            <Item>
              <New class="org.eclipse.jetty.server.HttpConnectionFactory">
                <Arg name="config"><Ref refid="httpConfig" /></Arg>
              </New>
            </Item>
          </Array>
        </Arg>
        <Set name="host"><Property name="jetty.host" /></Set>
        <Set name="port">8080</Set>
        <Set name="idleTimeout"><Property name="http.timeout" default="30000"/></Set>
        <Set name="soLingerTime"><Property name="http.soLingerTime" default="-1"/></Set>
        <Set name="acceptorPriorityDelta"><Property name="http.acceptorPriorityDelta" default="0"/></Set>
        <Set name="selectorPriorityDelta"><Property name="http.selectorPriorityDelta" default="0"/></Set>
        <Set name="acceptQueueSize"><Property name="http.acceptQueueSize" default="0"/></Set>
      </New>
    </Arg>
  </Call>
<Call name="addConnector">
    <Arg>
      <New class="org.eclipse.jetty.server.ServerConnector">
        <Arg name="server"><Ref refid="Server" /></Arg>
        <Arg name="acceptors" type="int"><Property name="http.acceptors" default="-1"/></Arg>
        <Arg name="selectors" type="int"><Property name="http.selectors" default="-1"/></Arg>
        <Arg name="factories">
          <Array type="org.eclipse.jetty.server.ConnectionFactory">
            <Item>
              <New class="org.eclipse.jetty.server.HttpConnectionFactory">
                <Arg name="config"><Ref refid="httpConfig" /></Arg>
              </New>
            </Item>
          </Array>
        </Arg>
        <Set name="host"><Property name="jetty.host" /></Set>
        <Set name="port">8081</Set>
        <Set name="idleTimeout"><Property name="http.timeout" default="30000"/></Set>
        <Set name="soLingerTime"><Property name="http.soLingerTime" default="-1"/></Set>
        <Set name="acceptorPriorityDelta"><Property name="http.acceptorPriorityDelta" default="0"/></Set>
        <Set name="selectorPriorityDelta"><Property name="http.selectorPriorityDelta" default="0"/></Set>
        <Set name="acceptQueueSize"><Property name="http.acceptQueueSize" default="0"/></Set>
      </New>
    </Arg>
  </Call>
</Configure>