Use WireMock in integration test

pom.xml

@@ -435,40 +435,6 @@
               </execution>
             </executions>
           </plugin>
-
-          <plugin>
-            <groupId>org.codehaus.gmaven</groupId>
-            <artifactId>groovy-maven-plugin</artifactId>
-            <dependencies>
-              <dependency>
-                <groupId>org.littleshoot</groupId>
-                <artifactId>littleproxy</artifactId>
-                <version>1.1.2</version>
-              </dependency>
-            </dependencies>
-            <executions>
-              <execution>
-                <id>LittleProxyStart</id>
-                <goals>
-                  <goal>execute</goal>
-                </goals>
-                <phase>pre-integration-test</phase>
-                <configuration>
-                  <source>${project.basedir}/src/build/scripts/LittleProxyStart.groovy</source>
-                </configuration>
-              </execution>
-              <execution>
-                <id>LittleProxyStop</id>
-                <goals>
-                  <goal>execute</goal>
-                </goals>
-                <phase>post-integration-test</phase>
-                <configuration>
-                  <source>System.setProperty('LittleProxy.stop', 'true'); Thread.sleep(250)</source>
-                </configuration>
-              </execution>
-            </executions>
-          </plugin>
           <plugin>
             <artifactId>maven-invoker-plugin</artifactId>
             <configuration>
@@ -501,6 +467,11 @@
                 <artifactId>commons-io</artifactId>
                 <version>2.17.0</version>
               </dependency>
+              <dependency>
+                <groupId>org.wiremock</groupId>
+                <artifactId>wiremock-standalone</artifactId>
+                <version>3.9.2</version>
+              </dependency>
             </dependencies>
             <executions>
               <execution>

src/it/download-licenses-proxy/invoker.properties

@@ -3,3 +3,6 @@ invoker.settingsFile = src/it/settings-proxy.xml
 
 # execute as last test, all needed artifact should be resolved before this test
 invoker.ordinal = -100
+
+# wiremock requires 11+
+invoker.java.version = 11+

src/it/download-licenses-proxy/postbuild.groovy

@@ -20,15 +20,20 @@
  * #L%
  */
 
-import java.nio.file.Path;
-import java.nio.file.Files;
+import com.github.tomakehurst.wiremock.WireMockServer
+
+import java.nio.file.Files
+import java.nio.file.Path
 
 final Path basePath = basedir.toPath()
 
 final Path asl2 = basePath.resolve('target/generated-resources/licenses/apache license 2.0 - license-2.0.txt')
 assert Files.exists(asl2)
-assert asl2.toFile().text.contains('Proxied via LittleProxy')
+assert asl2.toFile().text.contains('Proxied via WireMock')
 
 final Path expectedLicensesXml = basePath.resolve('licenses.expected.xml')
 final Path licensesXml = basePath.resolve('target/generated-resources/licenses.xml')
 assert expectedLicensesXml.toFile().text.equals(licensesXml.toFile().text)
+
+WireMockServer wireMockServer = context.get("wireMockServer")
+wireMockServer.stop()

src/it/download-licenses-proxy/prebuild.groovy

@@ -0,0 +1,47 @@
+import com.github.tomakehurst.wiremock.client.WireMock
+
+/*
+ * #%L
+ * License Maven Plugin
+ * %%
+ * Copyright (C) 2008 - 2011 CodeLutin, Codehaus, Tony Chemit, Tony chemit
+ * %%
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Lesser Public License for more details.
+ *
+ * You should have received a copy of the GNU General Lesser Public
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/lgpl-3.0.html>.
+ * #L%
+ */
+
+import com.github.tomakehurst.wiremock.WireMockServer
+import com.github.tomakehurst.wiremock.core.WireMockConfiguration
+import com.github.tomakehurst.wiremock.common.ConsoleNotifier
+
+import static com.github.tomakehurst.wiremock.client.WireMock.aResponse
+import static com.github.tomakehurst.wiremock.client.WireMock.equalTo
+import static com.github.tomakehurst.wiremock.client.WireMock.get
+import static com.github.tomakehurst.wiremock.client.WireMock.stubFor
+import static com.github.tomakehurst.wiremock.client.WireMock.configureFor
+
+WireMockServer wireMockServer = new WireMockServer(WireMockConfiguration.options()
+        .port(18080)
+        .notifier(new ConsoleNotifier(false)))
+wireMockServer.start()
+
+configureFor(wireMockServer.port())
+
+stubFor(get('/licenses/LICENSE-2.0.txt')
+        .withHeader('Host', equalTo('www.apache.org'))
+        .willReturn(aResponse().withStatus(200).withBody('Proxied via WireMock')))
+
+context.put("wireMockServer", wireMockServer)
+true