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Add a WebJar Locator extension that duplicates webjar locator behavior from Spring Boot.
This reverts commit 7c9face.
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‎bom/deployment/pom.xml‎

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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-webjars-locator-deployment</artifactId>
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<version>${project.version}</version>
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</dependency>
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<!-- Quarkus extension dependencies -->
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<dependency>
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<groupId>org.webjars</groupId>
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<artifactId>webjars-locator</artifactId>
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<version>0.39</version>
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</dependency>
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<!-- Quarkus test dependencies -->
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<dependency>

‎bom/runtime/pom.xml‎

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<artifactId>quarkus-picocli</artifactId>
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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-webjars-locator</artifactId>
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<version>${project.version}</version>
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</dependency>
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<!-- External dependencies -->
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‎core/deployment/src/main/java/io/quarkus/deployment/builditem/FeatureBuildItem.java‎

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public static final String VERTX = "vertx";
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public static final String VERTX_WEB = "vertx-web";
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public static final String VERTX_GRAPHQL = "vertx-graphql";
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public static final String WEBJARS_LOCATOR = "webjars-locator";
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private final String info;
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‎docs/src/main/asciidoc/http-reference.adoc‎

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Quarkus can be used without Servlet following this convention allows existing code that places its resources in this
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location to function correctly.
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=== WebJar Locator Support
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If you are using webjars, like the following JQuery one
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[source, xml]
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----
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<dependency>
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<groupId>org.webjars</groupId>
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<artifactId>jquery</artifactId>
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<version>3.1.1</version>
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</dependency>
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----
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and rather write `/webjars/jquery/jquery.min.js` instead of `/webjars/jquery/3.1.1/jquery.min.js`
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in your HTML files, you can add the `quarkus-webjars-locator` extension to your project.
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To use it, add the following to your project's dependencies:
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[source, xml]
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----
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-webjars-locator</artifactId>
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</dependency>
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----
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== Configuring the Context path
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By default Quarkus will serve content from under the root context. If you want to change this you can use the

‎extensions/pom.xml‎

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<module>vertx-http</module>
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<module>undertow</module>
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<module>undertow-websockets</module>
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<module>webjars-locator</module>
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<!-- Monitoring -->
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<module>smallrye-health</module>

‎extensions/webjars-locator/deployment/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"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>quarkus-webjars-locator-parent</artifactId>
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<groupId>io.quarkus</groupId>
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<version>999-SNAPSHOT</version>
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<relativePath>../</relativePath>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>quarkus-webjars-locator-deployment</artifactId>
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<name>Quarkus - WebJar Locator - Deployment</name>
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<dependencies>
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<dependency>
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<groupId>org.webjars</groupId>
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<artifactId>webjars-locator</artifactId>
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</dependency>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-core-deployment</artifactId>
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</dependency>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-vertx-http-deployment</artifactId>
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</dependency>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-webjars-locator</artifactId>
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</dependency>
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<!-- Tests -->
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-junit5-internal</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>io.rest-assured</groupId>
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<artifactId>rest-assured</artifactId>
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<scope>test</scope>
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</dependency>
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<!-- Using setForcedDependencies only works if the dependency is in the pom's test scope. -->
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<dependency>
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<groupId>org.webjars</groupId>
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<artifactId>jquery</artifactId>
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<version>3.4.1</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.webjars</groupId>
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<artifactId>momentjs</artifactId>
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<version>2.24.0</version>
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<scope>test</scope>
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</dependency>
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<!-- DevMode has no setForcedDependencies, so need to add resteasy extension here -->
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-resteasy</artifactId>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<annotationProcessorPaths>
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<path>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-extension-processor</artifactId>
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<version>${project.version}</version>
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</path>
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</annotationProcessorPaths>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎extensions/webjars-locator/deployment/src/main/java/io/quarkus/webjar/locator/deployment/WebJarLocatorStandaloneBuildStep.java‎

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package io.quarkus.webjar.locator.deployment;
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import java.util.Map;
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import org.webjars.WebJarAssetLocator;
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import io.quarkus.deployment.annotations.BuildProducer;
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import io.quarkus.deployment.annotations.BuildStep;
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import io.quarkus.deployment.annotations.ExecutionTime;
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import io.quarkus.deployment.annotations.Record;
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import io.quarkus.deployment.builditem.FeatureBuildItem;
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import io.quarkus.vertx.http.deployment.RouteBuildItem;
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import io.quarkus.vertx.http.runtime.HttpBuildTimeConfig;
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import io.quarkus.webjar.locator.runtime.WebJarLocatorRecorder;
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public class WebJarLocatorStandaloneBuildStep {
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@BuildStep
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@Record(ExecutionTime.RUNTIME_INIT)
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public void findWebjarsAndCreateHandler(
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HttpBuildTimeConfig httpConfig,
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BuildProducer<FeatureBuildItem> feature,
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BuildProducer<RouteBuildItem> routes,
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WebJarLocatorRecorder recorder) throws Exception {
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WebJarAssetLocator webJarLocator = new WebJarAssetLocator();
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Map<String, String> webjarNameToVersionMap = webJarLocator.getWebJars();
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if (!webjarNameToVersionMap.isEmpty()) {
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// The context path + the resources path
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String rootPath = httpConfig.rootPath;
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String webjarRootPath = (rootPath.endsWith("/")) ? rootPath + "webjars/" : rootPath + "/webjars/";
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feature.produce(new FeatureBuildItem(FeatureBuildItem.WEBJARS_LOCATOR));
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routes.produce(
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new RouteBuildItem(webjarRootPath + "*",
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recorder.getHandler(webjarRootPath, webjarNameToVersionMap),
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false));
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}
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}
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}

‎extensions/webjars-locator/deployment/src/test/java/io/quarkus/webjar/locator/test/PostResource.java‎

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package io.quarkus.webjar.locator.test;
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import javax.annotation.PreDestroy;
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import javax.ws.rs.POST;
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import javax.ws.rs.Path;
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@Path("/post")
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public class PostResource {
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@POST
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public String modify(String data) {
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return "Hello: " + data;
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}
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@PreDestroy
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void destroy() {
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throw new IllegalStateException("Something bad happened but dev mode should work fine");
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}
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}

‎extensions/webjars-locator/deployment/src/test/java/io/quarkus/webjar/locator/test/WebJarLocatorDevModeTest.java‎

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package io.quarkus.webjar.locator.test;
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import static org.hamcrest.core.Is.is;
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import org.hamcrest.Matchers;
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import org.jboss.shrinkwrap.api.ShrinkWrap;
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import org.jboss.shrinkwrap.api.asset.StringAsset;
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import org.jboss.shrinkwrap.api.spec.JavaArchive;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.RegisterExtension;
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import io.quarkus.test.QuarkusDevModeTest;
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import io.restassured.RestAssured;
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public class WebJarLocatorDevModeTest {
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private static final String META_INF_RESOURCES = "META-INF/resources/";
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@RegisterExtension
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static QuarkusDevModeTest test = new QuarkusDevModeTest()
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.setArchiveProducer(() -> ShrinkWrap.create(JavaArchive.class)
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.addClass(PostResource.class)
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.addAsResource(new StringAsset("<html>Hello!<html>"), META_INF_RESOURCES + "/index.html")
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.addAsResource(new StringAsset("Test"), META_INF_RESOURCES + "/some/path/test.txt"));
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@Test
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public void testDevMode() {
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// Test Endpoint
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RestAssured.given().body("Stuart")
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.when()
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.post("/post")
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.then()
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.body(Matchers.equalTo("Hello: Stuart"));
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// Test normal files
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RestAssured.get("/").then()
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.statusCode(200)
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.body(is("<html>Hello!<html>"));
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RestAssured.get("/index.html").then()
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.statusCode(200)
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.body(is("<html>Hello!<html>"));
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RestAssured.get("/some/path/test.txt").then()
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.statusCode(200)
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.body(is("Test"));
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// Test Existing Web Jars
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RestAssured.get("/webjars/jquery/jquery.min.js").then()
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.statusCode(200);
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RestAssured.get("/webjars/momentjs/min/moment.min.js").then()
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.statusCode(200);
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// Test using version in url of existing Web Jar
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RestAssured.get("/webjars/jquery/3.4.1/jquery.min.js").then()
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.statusCode(200);
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RestAssured.get("/webjars/momentjs/2.24.0/min/moment.min.js").then()
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.statusCode(200);
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// Test non-existing Web Jar
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RestAssured.get("/webjars/bootstrap/js/bootstrap.min.js").then()
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.statusCode(404);
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RestAssured.get("/webjars/bootstrap/4.3.1/js/bootstrap.min.js").then()
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.statusCode(404);
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RestAssured.get("/webjars/momentjs/2.25.0/min/moment.min.js").then()
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.statusCode(404);
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// Change a source file
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test.modifySourceFile(PostResource.class, s -> s.replace("Hello:", "Hi:"));
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// Test modified endpoint
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RestAssured.given().body("Stuart")
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.when()
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.post("/post")
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.then()
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.body(Matchers.equalTo("Hi: Stuart"));
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// Test normal files
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RestAssured.get("/").then()
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.statusCode(200)
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.body(is("<html>Hello!<html>"));
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RestAssured.get("/index.html").then()
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.statusCode(200)
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.body(is("<html>Hello!<html>"));
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RestAssured.get("/some/path/test.txt").then()
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.statusCode(200)
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.body(is("Test"));
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// Test Existing Web Jars
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RestAssured.get("/webjars/jquery/jquery.min.js").then()
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.statusCode(200);
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RestAssured.get("/webjars/momentjs/min/moment.min.js").then()
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.statusCode(200);
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// Test using version in url of existing Web Jar
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RestAssured.get("/webjars/jquery/3.4.1/jquery.min.js").then()
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.statusCode(200);
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RestAssured.get("/webjars/momentjs/2.24.0/min/moment.min.js").then()
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.statusCode(200);
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// Test non-existing Web Jar
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RestAssured.get("/webjars/bootstrap/js/bootstrap.min.js").then()
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.statusCode(404);
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RestAssured.get("/webjars/bootstrap/4.3.1/js/bootstrap.min.js").then()
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.statusCode(404);
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RestAssured.get("/webjars/momentjs/2.25.0/min/moment.min.js").then()
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.statusCode(404);
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}
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}

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