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Support ServletContextListener with Jetty 9
Call `context.getServletContext().setExtendedListenerTypes(true)` to ensure that ServletContextListeners can be registered with Jetty 9. Fixes gh-2058
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/*
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* Copyright 2012-2014 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample.jetty;
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import javax.servlet.ServletContextEvent;
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import javax.servlet.ServletContextListener;
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import org.springframework.stereotype.Component;
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/**
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* Simple {@link ServletContextListener} to test gh-2058.
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*/
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@Component
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public class ExampleServletContextListener implements ServletContextListener {
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@Override
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public void contextInitialized(ServletContextEvent sce) {
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System.out.println("*** contextInitialized");
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}
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@Override
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public void contextDestroyed(ServletContextEvent sce) {
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System.out.println("*** contextDestroyed");
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}
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}
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@ -118,7 +118,6 @@ public class JettyEmbeddedServletContainerFactory extends
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configureWebAppContext(context, initializers);
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server.setHandler(context);
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this.logger.info("Server initialized with port: " + port);
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if (getSsl() != null) {
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SslContextFactory sslContextFactory = new SslContextFactory();
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configureSsl(sslContextFactory, getSsl());
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@ -126,11 +125,9 @@ public class JettyEmbeddedServletContainerFactory extends
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server, sslContextFactory, port);
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server.setConnectors(new Connector[] { connector });
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}
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for (JettyServerCustomizer customizer : getServerCustomizers()) {
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customizer.customize(server);
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}
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return getJettyEmbeddedServletContainer(server);
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}
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@ -224,6 +221,7 @@ public class JettyEmbeddedServletContainerFactory extends
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protected final void configureWebAppContext(WebAppContext context,
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ServletContextInitializer... initializers) {
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Assert.notNull(context, "Context must not be null");
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setExtendedListenerTypes(context);
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if (this.resourceLoader != null) {
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context.setClassLoader(this.resourceLoader.getClassLoader());
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}
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@ -248,6 +246,15 @@ public class JettyEmbeddedServletContainerFactory extends
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postProcessWebAppContext(context);
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}
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private void setExtendedListenerTypes(WebAppContext context) {
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try {
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context.getServletContext().setExtendedListenerTypes(true);
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}
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catch (NoSuchMethodError ex) {
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// Not available on Jetty 8
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}
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}
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private void configureDocumentRoot(WebAppContext handler) {
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File root = getValidDocumentRoot();
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if (root != null) {
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