add shutdown for wiremock server (#21)

src/main/groovy/io/codearte/accurest/maven/RunMojo.groovy

@@ -3,6 +3,8 @@ package io.codearte.accurest.maven
 import groovy.transform.CompileStatic
 import io.codearte.accurest.maven.stubrunner.LocalStubRunner
 import io.codearte.accurest.maven.stubrunner.RemoteStubRunner
+import io.codearte.accurest.stubrunner.BatchStubRunner
+import io.codearte.accurest.stubrunner.StubRunner
 import io.codearte.accurest.stubrunner.StubRunnerOptions
 import org.apache.maven.execution.MavenSession
 import org.apache.maven.plugin.AbstractMojo
@@ -63,17 +65,21 @@ class RunMojo extends AbstractMojo {
             log.info("Skipping accurest execution: accurest.skip=${skip}")
             return
         }
-
+        BatchStubRunner batchStubRunner
         if (!stubs) {
             StubRunnerOptions options = new StubRunnerOptions(httpPort, httpPort + 1, "", false, stubsClassifier)
-            localStubRunner.run(resolveStubsDirectory().absolutePath, options)
+            StubRunner stubRunner = localStubRunner.run(resolveStubsDirectory().absolutePath, options)
+            batchStubRunner = new BatchStubRunner(Arrays.asList(stubRunner))
         } else {
             StubRunnerOptions options = new StubRunnerOptions(minPort, maxPort, "", false, stubsClassifier)
-            remoteStubRunner.run(stubs, options, repoSession)
+            batchStubRunner = remoteStubRunner.run(stubs, options, repoSession)
         }
 
         if (!insideProject) {
             pressAnyKeyToContinue()
+            if (batchStubRunner) {
+                batchStubRunner.close()
+            }
         }
     }
 

src/main/groovy/io/codearte/accurest/maven/stubrunner/LocalStubRunner.groovy

@@ -13,8 +13,10 @@ import javax.inject.Named
 @Slf4j
 class LocalStubRunner {
 
-    void run(String contractsDir, StubRunnerOptions options) {
+    StubRunner run(String contractsDir, StubRunnerOptions options) {
         log.info("Launching StubRunner with contracts from ${contractsDir}")
-        new StubRunner(options, contractsDir, new StubConfiguration(contractsDir)).runStubs()
+        StubRunner stubRunner = new StubRunner(options, contractsDir, new StubConfiguration(contractsDir))
+        stubRunner.runStubs()
+        return stubRunner
     }
 }

src/main/groovy/io/codearte/accurest/maven/stubrunner/RemoteStubRunner.groovy

@@ -21,7 +21,7 @@ class RemoteStubRunner {
         this.aetherStubDownloaderFactory = aetherStubDownloaderFactory
     }
 
-    void run(String stubs, StubRunnerOptions options, RepositorySystemSession repositorySystemSession) {
+    BatchStubRunner run(String stubs, StubRunnerOptions options, RepositorySystemSession repositorySystemSession) {
         AetherStubDownloader stubDownloader = aetherStubDownloaderFactory.build(repositorySystemSession)
         try {
             log.debug("Launching StubRunner with args: $options")
@@ -30,6 +30,7 @@ class RemoteStubRunner {
                     .buildBatchStubRunner()
             RunningStubs runningCollaborators = stubRunner.runStubs()
             log.info(runningCollaborators.toString())
+            return stubRunner
         } catch (Exception e) {
             log.error("An exception occurred while trying to execute the stubs: ${e.message}")
             throw e