This is an automated email from the ASF dual-hosted git repository.

sseifert pushed a commit to branch feature/SLING-13009-parent-62
in repository 
https://gitbox.apache.org/repos/asf/sling-feature-launcher-maven-plugin.git

commit 6c452a9e5b10b536e093b718bdb04039832a3669
Author: Stefan Seifert <[email protected]>
AuthorDate: Mon Nov 24 16:32:33 2025 +0100

    SLING-13009 apply spotless formatting
---
 pom.xml                                            |  22 ++--
 .../sling/maven/feature/launcher/Launch.java       |  53 ++++-----
 .../maven/feature/launcher/LauncherArguments.java  |   4 +-
 .../maven/feature/launcher/ProcessTracker.java     |  26 ++--
 .../sling/maven/feature/launcher/StartMojo.java    | 131 ++++++++++++---------
 .../sling/maven/feature/launcher/StopMojo.java     |  15 ++-
 .../sling/maven/feature/launcher/LaunchTest.java   |  24 ++--
 7 files changed, 145 insertions(+), 130 deletions(-)

diff --git a/pom.xml b/pom.xml
index 17c75ce..1e17966 100644
--- a/pom.xml
+++ b/pom.xml
@@ -32,24 +32,24 @@
 
     <name>Apache Sling Feature Launcher Maven Plugin</name>
 
+    <prerequisites>
+        <maven>${maven.version}</maven>
+    </prerequisites>
+
     <scm>
         
<connection>scm:git:https://gitbox.apache.org/repos/asf/sling-feature-launcher-maven-plugin.git</connection>
         
<developerConnection>scm:git:https://gitbox.apache.org/repos/asf/sling-feature-launcher-maven-plugin.git</developerConnection>
-        
<url>https://github.com/apache/sling-feature-launcher-maven-plugin</url>
         <tag>HEAD</tag>
+        
<url>https://github.com/apache/sling-feature-launcher-maven-plugin</url>
     </scm>
 
-
-    <prerequisites>
-        <maven>${maven.version}</maven>
-    </prerequisites>
-
     <properties>
         <sling.java.version>11</sling.java.version>
         <maven.version>3.8.1</maven.version>
         
<project.build.outputTimestamp>1757086693</project.build.outputTimestamp>
         
<github.project.id>apache/sling-feature-launcher-maven-plugin</github.project.id>
-        
<maven.compiler.target>${sling.java.version}</maven.compiler.target><!-- also 
set target next to release due to 
https://issues.apache.org/jira/browse/MPLUGIN-404 -->
+        <maven.compiler.target>${sling.java.version}</maven.compiler.target>
+        <!-- also set target next to release due to 
https://issues.apache.org/jira/browse/MPLUGIN-404 -->
     </properties>
 
     <dependencies>
@@ -176,7 +176,7 @@
             </plugin>
         </plugins>
     </build>
-    
+
     <reporting>
         <plugins>
             <plugin>
@@ -187,10 +187,8 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
                 <configuration>
-                  <!-- No javadocs -->
-                    <excludePackageNames>
-                        org.apache.sling
-                    </excludePackageNames>
+                    <!-- No javadocs -->
+                    <excludePackageNames>org.apache.sling</excludePackageNames>
                 </configuration>
             </plugin>
         </plugins>
diff --git a/src/main/java/org/apache/sling/maven/feature/launcher/Launch.java 
b/src/main/java/org/apache/sling/maven/feature/launcher/Launch.java
index 0e4b3ff..b797316 100644
--- a/src/main/java/org/apache/sling/maven/feature/launcher/Launch.java
+++ b/src/main/java/org/apache/sling/maven/feature/launcher/Launch.java
@@ -30,7 +30,7 @@ import java.util.regex.Pattern;
 import org.apache.maven.model.Dependency;
 
 public class Launch {
-    
+
     private static final Pattern ID_PATTERN = 
Pattern.compile("[a-zA-Z0-9_\\-\\.]+");
 
     private String id;
@@ -39,7 +39,7 @@ public class Launch {
     private LauncherArguments launcherArguments = new LauncherArguments();
     private int startTimeoutSeconds = 30;
     private boolean skip = false;
-    private Map<String,String> environmentVariables = new HashMap<>();
+    private Map<String, String> environmentVariables = new HashMap<>();
     private List<String> repositoryUrls = new ArrayList<>();
 
     public String getId() {
@@ -57,11 +57,11 @@ public class Launch {
     public void setFeature(Dependency feature) {
         this.feature = feature;
     }
-    
+
     public Optional<File> getFeatureFile() {
         return Optional.ofNullable(featureFile).map(File::new);
     }
-    
+
     public void setFeatureFile(String featureFile) {
         this.featureFile = featureFile;
     }
@@ -73,11 +73,11 @@ public class Launch {
     public void setLauncherArguments(LauncherArguments launcherArguments) {
         this.launcherArguments = launcherArguments;
     }
-    
+
     public int getStartTimeoutSeconds() {
         return startTimeoutSeconds;
     }
-    
+
     public void setStartTimeoutSeconds(int startTimeoutSeconds) {
         this.startTimeoutSeconds = startTimeoutSeconds;
     }
@@ -91,8 +91,7 @@ public class Launch {
     }
 
     public Map<String, String> getEnvironmentVariables() {
-        if ( environmentVariables == null )
-            return Collections.emptyMap();
+        if (environmentVariables == null) return Collections.emptyMap();
         return environmentVariables;
     }
 
@@ -109,31 +108,29 @@ public class Launch {
     }
 
     public void validate() {
-        if ( id == null || id.trim().isEmpty() ) 
-            throw new IllegalArgumentException("Missing id");
-        
-        if ( !ID_PATTERN.matcher(id).matches() )
-            throw new IllegalArgumentException("Invalid id '" + id + "'. 
Allowed characters are digits, numbers, '-','_' and '.'.");
-        
-        if ( startTimeoutSeconds < 0 )
-            throwInvalid("startTimeout value '" + startTimeoutSeconds + "' is 
negative" );
-        
+        if (id == null || id.trim().isEmpty()) throw new 
IllegalArgumentException("Missing id");
+
+        if (!ID_PATTERN.matcher(id).matches())
+            throw new IllegalArgumentException(
+                    "Invalid id '" + id + "'. Allowed characters are digits, 
numbers, '-','_' and '.'.");
+
+        if (startTimeoutSeconds < 0) throwInvalid("startTimeout value '" + 
startTimeoutSeconds + "' is negative");
+
         boolean hasFeature = feature != null;
         boolean hasFeatureFile = featureFile != null && 
!featureFile.trim().isEmpty();
-        
-        if ( hasFeature && hasFeatureFile )
+
+        if (hasFeature && hasFeatureFile)
             throwInvalid("Only one of 'feature' and 'featureFile' is allowed, 
but both are set");
-        
-        if ( !hasFeature && !hasFeatureFile )
-            throwInvalid("Neither 'feature' nor 'featureFile' are set");
-        
-        if ( hasFeatureFile && ! new File(featureFile).exists() )
+
+        if (!hasFeature && !hasFeatureFile) throwInvalid("Neither 'feature' 
nor 'featureFile' are set");
+
+        if (hasFeatureFile && !new File(featureFile).exists())
             throwInvalid("Feature file '" + featureFile + "' does not exist");
-        
-        if ( hasFeature && ! "slingosgifeature".equals(feature.getType()) )
-            throwInvalid("type must be 'slingosgifeature' but is '" + 
feature.getType()+"'");
+
+        if (hasFeature && !"slingosgifeature".equals(feature.getType()))
+            throwInvalid("type must be 'slingosgifeature' but is '" + 
feature.getType() + "'");
     }
-    
+
     private void throwInvalid(String reason) {
         throw new IllegalArgumentException("Invalid launch '" + id + "': " + 
reason);
     }
diff --git 
a/src/main/java/org/apache/sling/maven/feature/launcher/LauncherArguments.java 
b/src/main/java/org/apache/sling/maven/feature/launcher/LauncherArguments.java
index 3693172..e70c68f 100644
--- 
a/src/main/java/org/apache/sling/maven/feature/launcher/LauncherArguments.java
+++ 
b/src/main/java/org/apache/sling/maven/feature/launcher/LauncherArguments.java
@@ -26,7 +26,7 @@ public class LauncherArguments {
     private String[] vmOptions = new String[0];
     private Map<String, String> frameworkProperties = new HashMap<>();
     private Map<String, String> variables = new HashMap<>();
-    
+
     public String[] getVmOptions() {
         return vmOptions;
     }
@@ -38,7 +38,7 @@ public class LauncherArguments {
     public Map<String, String> getFrameworkProperties() {
         return frameworkProperties;
     }
-    
+
     public void setFrameworkProperties(Map<String, String> 
frameworkProperties) {
         this.frameworkProperties = frameworkProperties;
     }
diff --git 
a/src/main/java/org/apache/sling/maven/feature/launcher/ProcessTracker.java 
b/src/main/java/org/apache/sling/maven/feature/launcher/ProcessTracker.java
index 72e33ae..63fda7d 100644
--- a/src/main/java/org/apache/sling/maven/feature/launcher/ProcessTracker.java
+++ b/src/main/java/org/apache/sling/maven/feature/launcher/ProcessTracker.java
@@ -18,13 +18,13 @@
  */
 package org.apache.sling.maven.feature.launcher;
 
+import javax.inject.Named;
+import javax.inject.Singleton;
+
 import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
-import javax.inject.Named;
-import javax.inject.Singleton;
-
 import org.apache.maven.shared.utils.Os;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -39,7 +39,7 @@ public class ProcessTracker {
         LOG.debug("Destroy process: {}", process);
         process.destroy();
         boolean stopped = process.waitFor(30, TimeUnit.SECONDS);
-        if ( !stopped ) {
+        if (!stopped) {
             LOG.debug("Forcibly destroy process after 30sec: {}", process);
             process.destroyForcibly();
         }
@@ -65,7 +65,7 @@ public class ProcessTracker {
             childProcess.destroy();
             try {
                 boolean stopped = childProcess.onExit().get(30, 
TimeUnit.SECONDS) != null;
-                if ( !stopped ) {
+                if (!stopped) {
                     LOG.debug("Forcibly destroy child process after 30sec: 
{}", childProcess);
                     childProcess.destroyForcibly();
                 }
@@ -85,21 +85,22 @@ public class ProcessTracker {
 
     public void startTracking(String launchId, Process process) {
         synchronized (sync) {
-            if ( processes.containsKey(launchId) )
+            if (processes.containsKey(launchId))
                 throw new IllegalArgumentException("Launch id " + launchId + " 
already associated with a process");
             LOG.debug("Start tracking process for launch {}: {}", launchId, 
process);
             processes.put(launchId, process);
-            if ( ! hookAdded ) {
+            if (!hookAdded) {
                 Runtime.getRuntime().addShutdownHook(new 
Thread("process-tracker-shutdown") {
                     @Override
                     public void run() {
                         LOG.debug("Shutdown hook  is running for launch {}: 
{}", launchId, process);
-                        for ( Map.Entry<String, Process> entry : 
processes.entrySet() ) {
-                            LOG.error("Launch {} was not shut down! Destroying 
forcibly from shutdown hook.", entry.getKey());
+                        for (Map.Entry<String, Process> entry : 
processes.entrySet()) {
+                            LOG.error(
+                                    "Launch {} was not shut down! Destroying 
forcibly from shutdown hook.",
+                                    entry.getKey());
                             process.destroyForcibly();
                         }
                     }
-
                 });
                 hookAdded = true;
             }
@@ -111,15 +112,14 @@ public class ProcessTracker {
         synchronized (sync) {
             process = processes.remove(id);
         }
-        if ( process == null ) {
+        if (process == null) {
             LOG.warn("Process not found in process list, skip stopping: {}", 
id);
             return;
         }
 
         if (Os.isFamily(Os.FAMILY_WINDOWS)) {
             stopWithDescendants(process);
-        }
-        else {
+        } else {
             stop(process);
         }
     }
diff --git 
a/src/main/java/org/apache/sling/maven/feature/launcher/StartMojo.java 
b/src/main/java/org/apache/sling/maven/feature/launcher/StartMojo.java
index 7c8dba5..a678c72 100644
--- a/src/main/java/org/apache/sling/maven/feature/launcher/StartMojo.java
+++ b/src/main/java/org/apache/sling/maven/feature/launcher/StartMojo.java
@@ -18,7 +18,6 @@
  */
 package org.apache.sling.maven.feature.launcher;
 
-
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.IOException;
@@ -64,7 +63,7 @@ import org.eclipse.aether.resolution.ArtifactResult;
 /**
  * Start one or multiple <a 
href="https://sling.apache.org/documentation/development/feature-model.html";>Sling
 Feature(s)</a>.
  */
-@Mojo( name = "start", defaultPhase = LifecyclePhase.PRE_INTEGRATION_TEST )
+@Mojo(name = "start", defaultPhase = LifecyclePhase.PRE_INTEGRATION_TEST)
 public class StartMojo extends AbstractMojo {
 
     private static final String JAVA_HOME = "JAVA_HOME";
@@ -73,15 +72,15 @@ public class StartMojo extends AbstractMojo {
     /**
      * The directory in which the features are launched (below its child 
directory {@code launchers/<launch-id>}).
      */
-    @Parameter( defaultValue = "${project.build.directory}", property = 
"outputDir", required = true )
+    @Parameter(defaultValue = "${project.build.directory}", property = 
"outputDir", required = true)
     private File outputDirectory;
 
     /**
      * The version of the <a 
href="https://github.com/apache/sling-org-apache-sling-feature-launcher";>Sling 
Feature Launcher</a> to use.
      */
-    @Parameter( required = true, defaultValue = "1.3.4")
+    @Parameter(required = true, defaultValue = "1.3.4")
     private String featureLauncherVersion;
-    
+
     // TODO: extract this field into common parent class
     /**
      * List of {@link Launch} objects to start. Each is having the following 
format:
@@ -103,7 +102,7 @@ public class StartMojo extends AbstractMojo {
      *  <JAVA_HOME>...</JAVA_HOME>
      * </environmentVariables>}
      * </pre>
-     * 
+     *
      * <p>If no repository URLs are configured the following defaults are 
used, in order:
      * <ul>
      *   <li>The local Maven repository</li>
@@ -117,7 +116,7 @@ public class StartMojo extends AbstractMojo {
 
     @Component
     private ArtifactResolver resolver;
-    
+
     @Parameter(defaultValue = "${localRepository}", readonly = true)
     private ArtifactRepository localRepository;
 
@@ -129,7 +128,7 @@ public class StartMojo extends AbstractMojo {
 
     @Parameter(property = "session", readonly = true, required = true)
     protected MavenSession mavenSession;
-    
+
     @Component
     private ProcessTracker processes;
 
@@ -146,7 +145,8 @@ public class StartMojo extends AbstractMojo {
             // the feature launcher before version 1.1.28 used a single jar, 
while versions
             //  after that provide an assembly per SLING-10956
             VersionRange beforeAssemblyRange = 
VersionRange.createFromVersionSpec("(,1.1.26]");
-            boolean useAssembly = !beforeAssemblyRange.containsVersion(new 
DefaultArtifactVersion(featureLauncherVersion));
+            boolean useAssembly =
+                    !beforeAssemblyRange.containsVersion(new 
DefaultArtifactVersion(featureLauncherVersion));
 
             RepositorySystemSession repositorySession = 
mavenSession.getRepositorySession();
             File workDir = new File(outputDirectory, "launchers");
@@ -155,20 +155,22 @@ public class StartMojo extends AbstractMojo {
             File launcher;
             if (useAssembly) {
                 // fetch the assembly artifact
-                Artifact launcherAssemblyArtifact = new 
DefaultArtifact("org.apache.sling:org.apache.sling.feature.launcher:tar.gz:" + 
featureLauncherVersion);
-                File assemblyArchive = resolver
-                        .resolveArtifact(repositorySession, new 
ArtifactRequest(launcherAssemblyArtifact, remoteRepos, null))
+                Artifact launcherAssemblyArtifact = new DefaultArtifact(
+                        
"org.apache.sling:org.apache.sling.feature.launcher:tar.gz:" + 
featureLauncherVersion);
+                File assemblyArchive = resolver.resolveArtifact(
+                                repositorySession, new 
ArtifactRequest(launcherAssemblyArtifact, remoteRepos, null))
                         .getArtifact()
                         .getFile();
 
                 // unpack the file
-                UnArchiver unArchiver = archiverManager.getUnArchiver( 
assemblyArchive );
+                UnArchiver unArchiver = 
archiverManager.getUnArchiver(assemblyArchive);
                 unArchiver.setSourceFile(assemblyArchive);
                 unArchiver.setDestFile(workDir);
                 unArchiver.extract();
 
                 // system property
-                Path relPath = 
Paths.get(launcherAssemblyArtifact.getArtifactId() + "-" + 
launcherAssemblyArtifact.getVersion(), "bin");
+                Path relPath = Paths.get(
+                        launcherAssemblyArtifact.getArtifactId() + "-" + 
launcherAssemblyArtifact.getVersion(), "bin");
                 if (Os.isFamily(Os.FAMILY_WINDOWS)) {
                     relPath = relPath.resolve("launcher.bat");
                 } else {
@@ -176,31 +178,34 @@ public class StartMojo extends AbstractMojo {
                 }
                 launcher = workDir.toPath().resolve(relPath).toFile();
             } else {
-                Artifact launcherArtifact = new 
DefaultArtifact("org.apache.sling:org.apache.sling.feature.launcher:" + 
featureLauncherVersion);
-                launcher = resolver
-                        .resolveArtifact(repositorySession, new 
ArtifactRequest(launcherArtifact, remoteRepos, null))
+                Artifact launcherArtifact = new DefaultArtifact(
+                        "org.apache.sling:org.apache.sling.feature.launcher:" 
+ featureLauncherVersion);
+                launcher = resolver.resolveArtifact(
+                                repositorySession, new 
ArtifactRequest(launcherArtifact, remoteRepos, null))
                         .getArtifact()
                         .getFile();
             }
-            
-            for ( Launch launch : launches ) {
+
+            for (Launch launch : launches) {
                 if (launch.isSkip()) {
                     getLog().info("Skipping starting launch with id " + 
launch.getId());
                     continue; // skip it
                 }
 
                 launch.validate();
-                
-                File featureFile = launch.getFeature().
-                    map( this::toArtifact )
-                   .map( a -> uncheckedResolveArtifact(repositorySession, a) )
-                   .map( r -> r.getArtifact().getFile())
-                   .orElseGet( () -> launch.getFeatureFile().get() ); // the 
Launch is guaranteed to either have a feature or a featureFile set
-                
+
+                File featureFile = launch.getFeature()
+                        .map(this::toArtifact)
+                        .map(a -> uncheckedResolveArtifact(repositorySession, 
a))
+                        .map(r -> r.getArtifact().getFile())
+                        .orElseGet(() -> launch.getFeatureFile()
+                                .get()); // the Launch is guaranteed to either 
have a feature or a featureFile set
+
                 String javahome = System.getenv(JAVA_HOME);
                 if (javahome == null || javahome.isEmpty()) {
                     // SLING-9843 fallback to java.home system property if 
JAVA_HOME env variable is not set
-                    getLog().warn("The JAVA_HOME env variable was not set, 
falling back to the java.home system property");
+                    getLog().warn(
+                                    "The JAVA_HOME env variable was not set, 
falling back to the java.home system property");
                     javahome = System.getProperty("java.home");
                 }
                 List<String> args = new ArrayList<>();
@@ -249,10 +254,11 @@ public class StartMojo extends AbstractMojo {
                     args.add("-jar");
                     args.add(launcher.getAbsolutePath());
                 }
-                
+
                 List<String> repositoryUrls;
-                
-                if ( launch.getRepositoryUrls() != null && 
!launch.getRepositoryUrls().isEmpty() ) {
+
+                if (launch.getRepositoryUrls() != null
+                        && !launch.getRepositoryUrls().isEmpty()) {
                     repositoryUrls = launch.getRepositoryUrls();
                 } else {
                     // replicate the behaviour from 
org.apache.sling.feature.io.artifacts.ArtifactManager
@@ -260,29 +266,32 @@ public class StartMojo extends AbstractMojo {
                     // configuration file $HOME/.m2/settings.xml but cannot 
find out if the Maven process was invoked
                     // with a maven.repo.local argument
                     repositoryUrls = new ArrayList<>();
-                    repositoryUrls.add(new 
File(localRepository.getBasedir()).toURI().toString());
+                    repositoryUrls.add(
+                            new 
File(localRepository.getBasedir()).toURI().toString());
                     repositoryUrls.add("https://repo1.maven.org/maven2";);
                     
repositoryUrls.add("https://repository.apache.org/content/group/snapshots";);
                 }
-                
+
                 args.add("-u");
                 StringJoiner joiner = new StringJoiner(",");
-                repositoryUrls.forEach( joiner::add );
+                repositoryUrls.forEach(joiner::add);
                 args.add(joiner.toString());
-                
+
                 args.add("-f");
                 args.add(featureFile.getAbsolutePath());
                 args.add("-p");
                 args.add(launch.getId());
-                
-                for ( Map.Entry<String, String> frameworkProperty : 
launch.getLauncherArguments().getFrameworkProperties().entrySet() ) {
+
+                for (Map.Entry<String, String> frameworkProperty :
+                        
launch.getLauncherArguments().getFrameworkProperties().entrySet()) {
                     args.add("-D");
-                    
args.add(frameworkProperty.getKey()+"="+frameworkProperty.getValue());
+                    args.add(frameworkProperty.getKey() + "=" + 
frameworkProperty.getValue());
                 }
-                
-                for ( Map.Entry<String, String> variable : 
launch.getLauncherArguments().getVariables().entrySet() ) {
+
+                for (Map.Entry<String, String> variable :
+                        
launch.getLauncherArguments().getVariables().entrySet()) {
                     args.add("-V");
-                    args.add(variable.getKey()+"="+variable.getValue());
+                    args.add(variable.getKey() + "=" + variable.getValue());
                 }
 
                 // TODO - add support for all arguments supported by the 
feature launcher
@@ -290,27 +299,26 @@ public class StartMojo extends AbstractMojo {
                 pb.redirectOutput(Redirect.INHERIT);
                 pb.redirectInput(Redirect.INHERIT);
                 pb.directory(workDir);
-                launch.getEnvironmentVariables().entrySet()
-                    .forEach( e -> {
-                            getLog().info("Setting environment variable '" + 
e.getKey() + "' to '" + e.getValue() + "'");
-                            pb.environment().put(e.getKey(), e.getValue());
-                        } );
-                
+                launch.getEnvironmentVariables().entrySet().forEach(e -> {
+                    getLog().info("Setting environment variable '" + 
e.getKey() + "' to '" + e.getValue() + "'");
+                    pb.environment().put(e.getKey(), e.getValue());
+                });
+
                 getLog().info("Starting launch with id '" + launch.getId() + 
"', args=" + args);
-                
+
                 CountDownLatch latch = new CountDownLatch(1);
-                
+
                 Process process = pb.start();
-                
+
                 Thread monitor = new Thread("launch-monitor-" + 
launch.getId()) {
                     @Override
                     public void run() {
                         BufferedReader reader = new BufferedReader(new 
InputStreamReader(process.getErrorStream()));
                         String line;
                         try {
-                            while ( (line = reader.readLine()) != null ) {
+                            while ((line = reader.readLine()) != null) {
                                 System.out.println(line); // NOSONAR - we pass 
through the subprocess stderr
-                                if ( line.contains("Framework started")) {
+                                if (line.contains("Framework started")) {
                                     latch.countDown();
                                     break;
                                 }
@@ -323,17 +331,21 @@ public class StartMojo extends AbstractMojo {
                 monitor.start();
                 getLog().info("Waiting for " + launch.getId() + " to start");
                 boolean started = latch.await(launch.getStartTimeoutSeconds(), 
TimeUnit.SECONDS);
-                if ( !started ) {
+                if (!started) {
                     ProcessTracker.stop(process);
-                    throw new MojoExecutionException("Launch " + 
launch.getId() + " failed to start in " + launch.getStartTimeoutSeconds() + " 
seconds.");
+                    throw new MojoExecutionException("Launch " + 
launch.getId() + " failed to start in "
+                            + launch.getStartTimeoutSeconds() + " seconds.");
                 }
-                
+
                 processes.startTracking(launch.getId(), process);
             }
 
-        } catch (NoSuchArchiverException | 
InvalidVersionSpecificationException | ArtifactResolutionException | 
IOException e) {
+        } catch (NoSuchArchiverException
+                | InvalidVersionSpecificationException
+                | ArtifactResolutionException
+                | IOException e) {
             throw new MojoExecutionException(e.getMessage(), e);
-        } catch ( InterruptedException e ) {
+        } catch (InterruptedException e) {
             Thread.currentThread().interrupt();
             throw new MojoExecutionException("Execution interrupted", e);
         }
@@ -348,6 +360,11 @@ public class StartMojo extends AbstractMojo {
     }
 
     private Artifact toArtifact(Dependency dependency) {
-        return new DefaultArtifact(dependency.getGroupId(), 
dependency.getArtifactId(), dependency.getClassifier(), dependency.getType(), 
dependency.getVersion());
+        return new DefaultArtifact(
+                dependency.getGroupId(),
+                dependency.getArtifactId(),
+                dependency.getClassifier(),
+                dependency.getType(),
+                dependency.getVersion());
     }
 }
diff --git 
a/src/main/java/org/apache/sling/maven/feature/launcher/StopMojo.java 
b/src/main/java/org/apache/sling/maven/feature/launcher/StopMojo.java
index b84a59a..2b3c46d 100644
--- a/src/main/java/org/apache/sling/maven/feature/launcher/StopMojo.java
+++ b/src/main/java/org/apache/sling/maven/feature/launcher/StopMojo.java
@@ -35,7 +35,7 @@ import 
org.codehaus.plexus.components.interactivity.PrompterException;
 /**
  * Stop one or multiple <a 
href="https://sling.apache.org/documentation/development/feature-model.html";>Sling
 Feature(s)</a>.
  */
-@Mojo( name = "stop", defaultPhase = LifecyclePhase.POST_INTEGRATION_TEST)
+@Mojo(name = "stop", defaultPhase = LifecyclePhase.POST_INTEGRATION_TEST)
 public class StopMojo extends AbstractMojo {
 
     // TODO: extract this field into common parent class
@@ -57,10 +57,10 @@ public class StopMojo extends AbstractMojo {
      */
     @Parameter(required = true)
     private List<Launch> launches;
-    
+
     @Component
     private ProcessTracker processes;
-    
+
     /**
      * If {@code true} stopping the server is deferred until you press the 
Enter key on the terminal on which Maven is executed.
      */
@@ -83,7 +83,7 @@ public class StopMojo extends AbstractMojo {
             }
         }
         try {
-            for ( Launch launch : launches ) {
+            for (Launch launch : launches) {
                 if (launch.isSkip()) {
                     getLog().info("Skipping stopping launch with id " + 
launch.getId());
                     continue; // skip it
@@ -100,11 +100,14 @@ public class StopMojo extends AbstractMojo {
     protected void waitForUserInput() throws MojoFailureException {
         // http://stackoverflow.com/a/21977269/5155923
         try {
-            String message = MessageUtils.buffer().warning("Waiting for user 
input before build continues...").toString();
+            String message = MessageUtils.buffer()
+                    .warning("Waiting for user input before build 
continues...")
+                    .toString();
             getLog().warn(message);
             prompter.prompt("Press Enter to continue");
         } catch (PrompterException e) {
-            throw new MojoFailureException("Could not prompt for user input. 
Do not use parameter 'waitForInput' in that case", e);
+            throw new MojoFailureException(
+                    "Could not prompt for user input. Do not use parameter 
'waitForInput' in that case", e);
         }
     }
 }
diff --git 
a/src/test/java/org/apache/sling/maven/feature/launcher/LaunchTest.java 
b/src/test/java/org/apache/sling/maven/feature/launcher/LaunchTest.java
index 1218f5c..a41dac3 100644
--- a/src/test/java/org/apache/sling/maven/feature/launcher/LaunchTest.java
+++ b/src/test/java/org/apache/sling/maven/feature/launcher/LaunchTest.java
@@ -31,25 +31,25 @@ public class LaunchTest {
 
     @Rule
     public TemporaryFolder tmp = new TemporaryFolder();
-    
+
     private Dependency validDep;
     private File validFeatureFile;
 
     @Before
     public void prepare() throws IOException {
-        validDep  = new Dependency();
+        validDep = new Dependency();
         validDep.setGroupId("org.apache.sling");
         validDep.setArtifactId("org.apache.sling.starter");
         validDep.setVersion("12");
         validDep.setClassifier("oak_tar");
         validDep.setType("slingosgifeature");
-        
+
         validFeatureFile = tmp.newFile("feature.json");
     }
 
     @Test
     public void validLaunch_withFeature() {
-        
+
         Launch launch = new Launch();
         launch.setFeature(validDep);
         launch.setId("oak_TAR-12.1"); // covers all allowed character classes
@@ -58,7 +58,7 @@ public class LaunchTest {
 
     @Test
     public void validLaunch_withFeatureFile() {
-        
+
         Launch launch = new Launch();
         launch.setFeatureFile(validFeatureFile.getAbsolutePath());
         launch.setId("feature");
@@ -67,7 +67,7 @@ public class LaunchTest {
 
     @Test(expected = IllegalArgumentException.class)
     public void invalidLaunch_noId() {
-        
+
         Launch launch = new Launch();
         launch.setFeature(validDep);
         launch.validate();
@@ -75,10 +75,10 @@ public class LaunchTest {
 
     @Test(expected = IllegalArgumentException.class)
     public void invalidLaunch_unsupportedType() {
-        
+
         Dependency invalidDep = validDep.clone();
         invalidDep.setType("jar");
-        
+
         Launch launch = new Launch();
         launch.setFeature(invalidDep);
         launch.setId("oak_tar");
@@ -87,7 +87,7 @@ public class LaunchTest {
 
     @Test(expected = IllegalArgumentException.class)
     public void invalidLaunch_noFeature() {
-        
+
         Launch launch = new Launch();
         launch.setId("no_feature");
         launch.validate();
@@ -95,7 +95,7 @@ public class LaunchTest {
 
     @Test(expected = IllegalArgumentException.class)
     public void invalidLaunch_badId() {
-        
+
         Launch launch = new Launch();
         launch.setId("/feature");
         launch.setFeature(validDep);
@@ -104,14 +104,14 @@ public class LaunchTest {
 
     @Test(expected = IllegalArgumentException.class)
     public void invalidLaunch_negativeTimeout() {
-        
+
         Launch launch = new Launch();
         launch.setId("feature");
         launch.setFeature(validDep);
         launch.setStartTimeoutSeconds(-10);
         launch.validate();
     }
-    
+
     @Test(expected = IllegalArgumentException.class)
     public void invalidLaunch_bothFeatureAndFeatureFile() {
 

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