package org.apache.maven.plugins.ear;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *  http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.OutputStreamWriter;
  import java.nio.charset.StandardCharsets;
  import java.nio.file.FileVisitResult;
  import java.nio.file.Files;
  import java.nio.file.LinkOption;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.nio.file.SimpleFileVisitor;
  import java.nio.file.StandardCopyOption;
  import java.nio.file.attribute.BasicFileAttributes;
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.Date;
  import java.util.List;
  import java.util.Objects;
  
  import org.apache.maven.archiver.MavenArchiveConfiguration;
  import org.apache.maven.archiver.MavenArchiver;
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.artifact.DependencyResolutionRequiredException;
  import org.apache.maven.execution.MavenSession;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.MojoFailureException;
  import org.apache.maven.plugins.annotations.Component;
  import org.apache.maven.plugins.annotations.LifecyclePhase;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.apache.maven.plugins.annotations.ResolutionScope;
  import org.apache.maven.plugins.ear.util.EarMavenArchiver;
  import org.apache.maven.plugins.ear.util.JavaEEVersion;
  import org.apache.maven.project.MavenProjectHelper;
  import org.apache.maven.shared.filtering.MavenFileFilter;
  import org.apache.maven.shared.filtering.MavenFilteringException;
  import org.apache.maven.shared.filtering.MavenResourcesExecution;
  import org.apache.maven.shared.filtering.MavenResourcesFiltering;
  import org.apache.maven.shared.mapping.MappingUtils;
  import org.apache.maven.shared.utils.io.FileUtils;
  import org.codehaus.plexus.archiver.Archiver;
  import org.codehaus.plexus.archiver.ArchiverException;
  import org.codehaus.plexus.archiver.UnArchiver;
  import org.codehaus.plexus.archiver.ear.EarArchiver;
  import org.codehaus.plexus.archiver.jar.JarArchiver;
  import org.codehaus.plexus.archiver.jar.Manifest;
  import org.codehaus.plexus.archiver.jar.Manifest.Attribute;
  import org.codehaus.plexus.archiver.jar.ManifestException;
  import org.codehaus.plexus.archiver.manager.ArchiverManager;
  import org.codehaus.plexus.archiver.manager.NoSuchArchiverException;
  import org.codehaus.plexus.archiver.zip.ZipArchiver;
  import org.codehaus.plexus.archiver.zip.ZipUnArchiver;
  import org.codehaus.plexus.components.io.filemappers.FileMapper;
  import org.codehaus.plexus.interpolation.InterpolationException;
  import org.codehaus.plexus.util.DirectoryScanner;
  import org.codehaus.plexus.util.StringUtils;
  
  /**
   * Builds J2EE Enterprise Archive (EAR) files.
   * 
   * @author <a href="snicoll@apache.org">Stephane Nicoll</a>
   */
  @Mojo( name = "ear",
         defaultPhase = LifecyclePhase.PACKAGE,
         threadSafe = true,
         requiresDependencyResolution = ResolutionScope.TEST )
  public class EarMojo
      extends AbstractEarMojo
  {
      /**
       * Default file name mapping used by artifacts located in local repository.
       */
      private static final String ARTIFACT_DEFAULT_FILE_NAME_MAPPING =
          "@{artifactId}@-@{version}@@{dashClassifier?}@.@{extension}@";
  
      /**
      * Single directory for extra files to include in the EAR.
      */
     @Parameter( defaultValue = "${basedir}/src/main/application", required = true )
     private File earSourceDirectory;
 
     /**
      * The comma separated list of tokens to include in the EAR.
      */
     @Parameter( alias = "includes", defaultValue = "**" )
     private String earSourceIncludes;
 
     /**
      * The comma separated list of tokens to exclude from the EAR.
      */
     @Parameter( alias = "excludes" )
     private String earSourceExcludes;
 
     /**
      * Specify that the EAR sources should be filtered.
      * 
      * @since 2.3.2
      */
     @Parameter( defaultValue = "false" )
     private boolean filtering;
 
     /**
      * Filters (property files) to include during the interpolation of the pom.xml.
      * 
      * @since 2.3.2
      */
     @Parameter
     private List<String> filters;
 
     /**
      * A list of file extensions that should not be filtered if filtering is enabled.
      * 
      * @since 2.3.2
      */
     @Parameter
     private List<String> nonFilteredFileExtensions;
 
     /**
      * To escape interpolated value with Windows path c:\foo\bar will be replaced with c:\\foo\\bar.
      * 
      * @since 2.3.2
      */
     @Parameter( defaultValue = "false" )
     private boolean escapedBackslashesInFilePath;
 
     /**
      * Expression preceded with this String won't be interpolated \${foo} will be replaced with ${foo}.
      * 
      * @since 2.3.2
      */
     @Parameter
     protected String escapeString;
 
     /**
      * In case of using the {@link #skinnyWars} and {@link #defaultLibBundleDir} usually the classpath will be modified.
      * By settings this option {@code true} you can change this and keep the classpath untouched. This option has been
      * introduced to keep the backward compatibility with earlier versions of the plugin.
      * 
      * @since 2.10
      */
     @Parameter( defaultValue = "false" )
     private boolean skipClassPathModification;
 
     /**
      * The location of a custom application.xml file to be used within the EAR file.
      */
     @Parameter
     private String applicationXml;
 
     /**
      * The directory for the generated EAR.
      */
     @Parameter( defaultValue = "${project.build.directory}", required = true )
     private String outputDirectory;
 
     /**
      * The name of the EAR file to generate.
      */
     @Parameter( defaultValue = "${project.build.finalName}", required = true, readonly = true )
     private String finalName;
 
     /**
      * The comma separated list of artifact's type(s) to unpack by default.
      */
     @Parameter
     private String unpackTypes;
 
     /**
      * Classifier to add to the artifact generated. If given, the artifact will be an attachment instead.
      */
     @Parameter
     private String classifier;
 
     /**
      * A comma separated list of tokens to exclude when packaging the EAR. By default nothing is excluded. Note that you
      * can use the Java Regular Expressions engine to include and exclude specific pattern using the expression
      * %regex[]. Hint: read the about (?!Pattern).
      * 
      * @since 2.7
      */
     @Parameter
     private String packagingExcludes;
 
     /**
      * A comma separated list of tokens to include when packaging the EAR. By default everything is included. Note that
      * you can use the Java Regular Expressions engine to include and exclude specific pattern using the expression
      * %regex[].
      * 
      * @since 2.7
      */
     @Parameter
     private String packagingIncludes;
 
     /**
      * Whether to create skinny WARs or not. A skinny WAR is a WAR that does not have all of its dependencies in
      * WEB-INF/lib. Instead those dependencies are shared between the WARs through the EAR.
      * 
      * @since 2.7
      */
     @Parameter( defaultValue = "false" )
     private boolean skinnyWars;
 
     /**
      * Whether to create skinny EAR modules or not. A skinny EAR module is a WAR, SAR, HAR, RAR or WSR module that
      * does not contain all of its dependencies in it. Instead those dependencies are shared between the WARs, SARs,
      * HARs, RARs and WSRs through the EAR. This option takes precedence over {@link #skinnyWars} option. That is if
      * skinnyModules is {@code true} but {@link #skinnyWars} is {@code false} (explicitly or by default) then all
      * modules including WARs are skinny.
      *
      * @since 3.2.0
      */
     @Parameter( defaultValue = "false" )
     private boolean skinnyModules;
 
     /**
      * The Plexus EAR archiver to create the output archive.
      */
     @Component( role = Archiver.class, hint = "ear" )
     private EarArchiver earArchiver;
 
     /**
      * The Plexus JAR archiver to create the output archive if not EAR application descriptor is provided (JavaEE 5+).
      */
     @Component( role = Archiver.class, hint = "jar" )
     private JarArchiver jarArchiver;
 
     /**
      * The Plexus Zip archiver for Skinny WAR repackaging.
      */
     @Component( role = Archiver.class, hint = "zip" )
     private ZipArchiver zipArchiver;
 
     /**
      * The Plexus Zip Un archiver for Skinny WAR repackaging.
      */
     @Component( role = UnArchiver.class, hint = "zip" )
     private ZipUnArchiver zipUnArchiver;
 
     /**
      * The archive configuration to use. See <a href="https://maven.apache.org/shared/maven-archiver/">Maven Archiver
      * Reference</a>.
      */
     @Parameter
     private MavenArchiveConfiguration archive = new MavenArchiveConfiguration();
 
     /**
      * Timestamp for reproducible output archive entries, either formatted as ISO 8601
      * <code>yyyy-MM-dd'T'HH:mm:ssXXX</code> or as an int representing seconds since the epoch (like
      * <a href="https://reproducible-builds.org/docs/source-date-epoch/">SOURCE_DATE_EPOCH</a>).
      *
      * @since 3.1.0
      */
     @Parameter( defaultValue = "${project.build.outputTimestamp}" )
     private String outputTimestamp;
 
     /**
      */
     @Component
     private MavenProjectHelper projectHelper;
 
     /**
      * The archive manager.
      */
     @Component
     private ArchiverManager archiverManager;
 
     /**
      */
     @Component( role = MavenFileFilter.class, hint = "default" )
     private MavenFileFilter mavenFileFilter;
 
     /**
      */
     @Component( role = MavenResourcesFiltering.class, hint = "default" )
     private MavenResourcesFiltering mavenResourcesFiltering;
 
     /**
      * @since 2.3.2
      */
     @Parameter( defaultValue = "${session}", readonly = true, required = true )
     private MavenSession session;
 
     private List<FileUtils.FilterWrapper> filterWrappers;
 
     /**
      * @since 2.9
      */
     @Parameter( defaultValue = "true" )
     private boolean useJvmChmod = true;
 
     /** {@inheritDoc} */
     public void execute()
         throws MojoExecutionException, MojoFailureException
     {
         // Initializes ear modules
         super.execute();
 
         File earFile = getEarFile( outputDirectory, finalName, classifier );
         MavenArchiver archiver = new EarMavenArchiver( getModules() );
         File ddFile = new File( getWorkDirectory(), APPLICATION_XML_URI );
 
         JarArchiver theArchiver;
         if ( ddFile.exists() )
         {
             earArchiver.setAppxml( ddFile );
             theArchiver = earArchiver;
         }
         else
         {
             // current Plexus EarArchiver does not support application.xml-less JavaEE 5+ case
             // => fallback to Plexus Jar archiver 
             theArchiver = jarArchiver;
         }
         getLog().debug( "Ear archiver implementation [" + theArchiver.getClass().getName() + "]" );
         archiver.setArchiver( theArchiver );
         archiver.setOutputFile( earFile );
         archiver.setCreatedBy( "Maven EAR Plugin", "org.apache.maven.plugins", "maven-ear-plugin" );
 
         // configure for Reproducible Builds based on outputTimestamp value
         Date reproducibleLastModifiedDate = archiver.configureReproducible( outputTimestamp );
 
         zipArchiver.setUseJvmChmod( useJvmChmod );
         if ( reproducibleLastModifiedDate != null )
         {
             zipArchiver.configureReproducible( reproducibleLastModifiedDate );
         }
         zipUnArchiver.setUseJvmChmod( useJvmChmod );
 
         final JavaEEVersion javaEEVersion = JavaEEVersion.getJavaEEVersion( version );
 
         final Collection<String> outdatedResources = initOutdatedResources();
 
         // Initializes unpack types
         List<String> unpackTypesList = createUnpackList();
 
         // Copy modules
         copyModules( javaEEVersion, unpackTypesList, outdatedResources );
 
         // Copy source files
         try
         {
             File earSourceDir = earSourceDirectory;
 
             if ( earSourceDir.exists() )
             {
                 getLog().info( "Copy ear sources to " + getWorkDirectory().getAbsolutePath() );
                 String[] fileNames = getEarFiles( earSourceDir );
                 for ( String fileName : fileNames )
                 {
                     copyFile( new File( earSourceDir, fileName ), new File( getWorkDirectory(), fileName ) );
                     outdatedResources.remove( Paths.get( fileName ).toString() );
                 }
             }
 
             if ( applicationXml != null && !"".equals( applicationXml ) )
             {
                 // rename to application.xml
                 getLog().info( "Including custom application.xml[" + applicationXml + "]" );
                 File metaInfDir = new File( getWorkDirectory(), META_INF );
                 copyFile( new File( applicationXml ), new File( metaInfDir, "/application.xml" ) );
                 outdatedResources.remove( Paths.get( "META-INF/application.xml" ).toString() );
             }
         }
         catch ( IOException e )
         {
             throw new MojoExecutionException( "Error copying EAR sources", e );
         }
         catch ( MavenFilteringException e )
         {
             throw new MojoExecutionException( "Error filtering EAR sources", e );
         }
 
         // Check if deployment descriptor is there
         if ( !ddFile.exists() && ( javaEEVersion.lt( JavaEEVersion.FIVE ) ) )
         {
             throw new MojoExecutionException( "Deployment descriptor: " + ddFile.getAbsolutePath()
                 + " does not exist." );
         }
         // no need to check timestamp for descriptors: removing if outdated does not really make sense
         outdatedResources.remove( Paths.get( APPLICATION_XML_URI ).toString() );
         if ( getJbossConfiguration() != null )
         {
             outdatedResources.remove( Paths.get( "META-INF/jboss-app.xml" ).toString() );
         }
 
         deleteOutdatedResources( outdatedResources );
 
         try
         {
             getLog().debug( "Excluding " + Arrays.asList( getPackagingExcludes() ) + " from the generated EAR." );
             getLog().debug( "Including " + Arrays.asList( getPackagingIncludes() ) + " in the generated EAR." );
 
             archiver.getArchiver().addDirectory( getWorkDirectory(), getPackagingIncludes(), getPackagingExcludes() );
 
             archiver.createArchive( session, getProject(), archive );
         }
         catch ( ManifestException | IOException | DependencyResolutionRequiredException e )
         {
             throw new MojoExecutionException( "Error assembling EAR", e );
         }
 
         if ( classifier != null )
         {
             projectHelper.attachArtifact( getProject(), "ear", classifier, earFile );
         }
         else
         {
             getProject().getArtifact().setFile( earFile );
         }
     }
 
     private void copyModules( final JavaEEVersion javaEEVersion, 
                               List<String> unpackTypesList, 
                               Collection<String> outdatedResources )
         throws MojoExecutionException, MojoFailureException
     {
         final Path workingDir = getWorkDirectory().toPath();
 
         try
         {
             for ( EarModule module : getModules() )
             {
                 final File sourceFile = module.getArtifact().getFile();
                 final File destinationFile = buildDestinationFile( getWorkDirectory(), module.getUri() );
                 if ( !sourceFile.isFile() )
                 {
                     throw new MojoExecutionException( "Cannot copy a directory: " + sourceFile.getAbsolutePath()
                         + "; Did you package/install " + module.getArtifact() + "?" );
                 }
 
                 if ( destinationFile.getCanonicalPath().equals( sourceFile.getCanonicalPath() ) )
                 {
                     getLog().info( "Skipping artifact [" + module + "], as it already exists at [" + module.getUri()
                         + "]" );
                     // FIXME: Shouldn't that result in a build failure!?
                     continue;
                 }
 
                 // If the module is within the unpack list, make sure that no unpack wasn't forced (null or true)
                 // If the module is not in the unpack list, it should be true
                 if ( ( unpackTypesList.contains( module.getType() )
                     && ( module.shouldUnpack() == null || module.shouldUnpack() ) )
                     || ( module.shouldUnpack() != null && module.shouldUnpack() ) )
                 {
                     getLog().info( "Copying artifact [" + module + "] to [" + module.getUri() + "] (unpacked)" );
                     // Make sure that the destination is a directory to avoid plexus nasty stuff :)
                     if ( !destinationFile.isDirectory() && !destinationFile.mkdirs() )
                     {
                         throw new MojoExecutionException( "Error creating " + destinationFile );
                     }
                     unpack( sourceFile, destinationFile, outdatedResources );
 
                     if ( module.changeManifestClasspath() )
                     {
                         changeManifestClasspath( module, destinationFile, javaEEVersion );
                     }
                 }
                 else
                 {
                     if ( sourceFile.lastModified() > destinationFile.lastModified() )
                     {
                         getLog().info( "Copying artifact [" + module + "] to [" + module.getUri() + "]" );
                         createParentIfNecessary( destinationFile );
                         Files.copy( sourceFile.toPath(), destinationFile.toPath(),
                             LinkOption.NOFOLLOW_LINKS, StandardCopyOption.REPLACE_EXISTING );
                         if ( module.changeManifestClasspath() )
                         {
                             changeManifestClasspath( module, destinationFile, javaEEVersion );
                         }
                     }
                     else
                     {
                         getLog().debug( "Skipping artifact [" + module + "], as it is already up to date at ["
                             + module.getUri() + "]" );
                     }
                     outdatedResources.remove( workingDir.relativize( destinationFile.toPath() ).toString() );
                 }
             }
         }
         catch ( IOException e )
         {
             throw new MojoExecutionException( "Error copying EAR modules", e );
         }
         catch ( ArchiverException e )
         {
             throw new MojoExecutionException( "Error unpacking EAR modules", e );
         }
         catch ( NoSuchArchiverException e )
         {
             throw new MojoExecutionException( "No Archiver found for EAR modules", e );
         }
     }
 
     private List<String> createUnpackList()
         throws MojoExecutionException
     {
         List<String> unpackTypesList = new ArrayList<String>();
         if ( unpackTypes != null )
         {
             unpackTypesList = Arrays.asList( unpackTypes.split( "," ) );
             for ( String type : unpackTypesList )
             {
                 if ( !EarModuleFactory.isStandardArtifactType( type ) )
                 {
                     throw new MojoExecutionException( "Invalid type [" + type + "] supported types are "
                         + EarModuleFactory.getStandardArtifactTypes() );
                 }
             }
             getLog().debug( "Initialized unpack types " + unpackTypesList );
         }
         return unpackTypesList;
     }
 
     /**
      * @return {@link #applicationXml}
      */
     public String getApplicationXml()
     {
         return applicationXml;
     }
 
     /**
      * @param applicationXml {@link #applicationXml}
      */
     public void setApplicationXml( String applicationXml )
     {
         this.applicationXml = applicationXml;
     }
 
     /**
      * Returns a string array of the excludes to be used when assembling/copying the ear.
      * 
      * @return an array of tokens to exclude
      */
     protected String[] getExcludes()
     {
         List<String> excludeList = new ArrayList<String>( FileUtils.getDefaultExcludesAsList() );
         if ( earSourceExcludes != null && !"".equals( earSourceExcludes ) )
         {
             excludeList.addAll( Arrays.asList( StringUtils.split( earSourceExcludes, "," ) ) );
         }
 
         // if applicationXml is specified, omit the one in the source directory
         if ( getApplicationXml() != null && !"".equals( getApplicationXml() ) )
         {
             excludeList.add( "**/" + META_INF + "/application.xml" );
         }
 
         return excludeList.toArray( new String[excludeList.size()] );
     }
 
     /**
      * Returns a string array of the includes to be used when assembling/copying the ear.
      * 
      * @return an array of tokens to include
      */
     protected String[] getIncludes()
     {
         return StringUtils.split( Objects.toString( earSourceIncludes, "" ), "," );
     }
 
     /**
      * @return The array with the packaging excludes.
      */
     public String[] getPackagingExcludes()
     {
         if ( StringUtils.isEmpty( packagingExcludes ) )
         {
             return new String[0];
         }
         else
         {
             return StringUtils.split( packagingExcludes, "," );
         }
     }
 
     /**
      * @param packagingExcludes {@link #packagingExcludes}
      */
     public void setPackagingExcludes( String packagingExcludes )
     {
         this.packagingExcludes = packagingExcludes;
     }
 
     /**
      * @return the arrays with the includes
      */
     public String[] getPackagingIncludes()
     {
         if ( StringUtils.isEmpty( packagingIncludes ) )
         {
             return new String[] { "**" };
         }
         else
         {
             return StringUtils.split( packagingIncludes, "," );
         }
     }
 
     /**
      * @param packagingIncludes {@link #packagingIncludes}
      */
     public void setPackagingIncludes( String packagingIncludes )
     {
         this.packagingIncludes = packagingIncludes;
     }
 
     private static File buildDestinationFile( File buildDir, String uri )
     {
         return new File( buildDir, uri );
     }
 
     /**
      * Returns the EAR file to generate, based on an optional classifier.
      * 
      * @param basedir the output directory
      * @param finalName the name of the ear file
      * @param classifier an optional classifier
      * @return the EAR file to generate
      */
     private static File getEarFile( String basedir, String finalName, String classifier )
     {
         if ( classifier == null )
         {
             classifier = "";
         }
         else if ( classifier.trim().length() > 0 && !classifier.startsWith( "-" ) )
         {
             classifier = "-" + classifier;
         }
 
         return new File( basedir, finalName + classifier + ".ear" );
     }
 
     /**
      * Returns a list of filenames that should be copied over to the destination directory.
      * 
      * @param sourceDir the directory to be scanned
      * @return the array of filenames, relative to the sourceDir
      */
     private String[] getEarFiles( File sourceDir )
     {
         DirectoryScanner scanner = new DirectoryScanner();
         scanner.setBasedir( sourceDir );
         scanner.setExcludes( getExcludes() );
         scanner.addDefaultExcludes();
 
         scanner.setIncludes( getIncludes() );
 
         scanner.scan();
 
         return scanner.getIncludedFiles();
     }
 
     /**
      * Unpacks the module into the EAR structure.
      * 
      * @param source file to be unpacked
      * @param destDir where to put the unpacked files
      * @param outdatedResources currently outdated resources
      * @throws ArchiverException a corrupt archive
      * @throws NoSuchArchiverException if we don't have an appropriate archiver
      * @throws IOException in case of a general IOException
      */
     public void unpack( File source, final File destDir, final Collection<String> outdatedResources )
         throws ArchiverException, NoSuchArchiverException, IOException
     {
         UnArchiver unArchiver = archiverManager.getUnArchiver( "zip" );
         unArchiver.setSourceFile( source );
         unArchiver.setDestDirectory( destDir );
         unArchiver.setFileMappers( new FileMapper[] {
             new FileMapper()
             {
                 @Override
                 public String getMappedFileName( String pName )
                 {
                     Path destFile = destDir.toPath().resolve( pName );
                     outdatedResources.remove( getWorkDirectory().toPath().relativize( destFile ).toString() );
                     return pName;
                 }
             }
         } );
 
         // Extract the module
         unArchiver.extract();
     }
 
     private void copyFile( File source, File target )
         throws MavenFilteringException, IOException, MojoExecutionException
     {
         createParentIfNecessary( target );
         if ( filtering && !isNonFilteredExtension( source.getName() ) )
         {
             mavenFileFilter.copyFile( source, target, true, getFilterWrappers(), encoding );
         }
         else
         {
             Files.copy( source.toPath(), target.toPath(), LinkOption.NOFOLLOW_LINKS,
                        StandardCopyOption.REPLACE_EXISTING );
         }
     }
 
     private void createParentIfNecessary( File target )
         throws IOException
     {
         // Silly that we have to do this ourselves
         File parentDirectory = target.getParentFile();
         if ( parentDirectory != null && !parentDirectory.exists() )
         {
             Files.createDirectories( parentDirectory.toPath() );
         }
     }
 
     /**
      * @param fileName the name of the file which should be checked
      * @return {@code true} if the name is part of the non filtered extensions; {@code false} otherwise
      */
     public boolean isNonFilteredExtension( String fileName )
     {
         return !mavenResourcesFiltering.filteredFileExtension( fileName, nonFilteredFileExtensions );
     }
 
     private List<FileUtils.FilterWrapper> getFilterWrappers()
         throws MojoExecutionException
     {
         if ( filterWrappers == null )
         {
             try
             {
                 MavenResourcesExecution mavenResourcesExecution = new MavenResourcesExecution();
                 mavenResourcesExecution.setMavenProject( getProject() );
                 mavenResourcesExecution.setEscapedBackslashesInFilePath( escapedBackslashesInFilePath );
                 mavenResourcesExecution.setFilters( filters );
                 mavenResourcesExecution.setEscapeString( escapeString );
 
                 filterWrappers = mavenFileFilter.getDefaultFilterWrappers( mavenResourcesExecution );
             }
             catch ( MavenFilteringException e )
             {
                 getLog().error( "Fail to build filtering wrappers " + e.getMessage() );
                 throw new MojoExecutionException( e.getMessage(), e );
             }
         }
         return filterWrappers;
     }
 
     private void changeManifestClasspath( EarModule module, File original, JavaEEVersion javaEEVersion )
         throws MojoFailureException
     {
         final String moduleLibDir = module.getLibDir();
         if ( !( ( moduleLibDir == null ) || skinnyModules || ( skinnyWars && module instanceof WebModule ) ) )
         {
             return;
         }
         try
         {
             File workDirectory;
 
             // Handle the case that the destination might be a directory (project-038)
             if ( original.isFile() )
             {
                 // Create a temporary work directory
                 // MEAR-167 use uri as directory to prevent merging of artifacts with the same artifactId
                 workDirectory = new File( new File( getTempFolder(), "temp" ), module.getUri() );
                 if ( !workDirectory.isDirectory() )
                 {
                     if ( workDirectory.mkdirs() )
                     {
                         getLog().debug( "Created a temporary work directory: " + workDirectory.getAbsolutePath() );
                     }
                     else
                     {
                         throw new MojoFailureException( "Failed to create directory " + workDirectory );
                     }
                 }
                 // Unpack the archive to a temporary work directory
                 zipUnArchiver.setSourceFile( original );
                 zipUnArchiver.setDestDirectory( workDirectory );
                 zipUnArchiver.extract();
             }
             else
             {
                 workDirectory = original;
             }
 
             // Create a META-INF/MANIFEST.MF file if it doesn't exist (project-038)
             File metaInfDirectory = new File( workDirectory, "META-INF" );
             boolean newMetaInfCreated = metaInfDirectory.mkdirs();
             if ( newMetaInfCreated )
             {
                 getLog().debug(
                     "This project did not have a META-INF directory before, so a new directory was created." );
             }
             File manifestFile = new File( metaInfDirectory, "MANIFEST.MF" );
             boolean newManifestCreated = manifestFile.createNewFile();
             if ( newManifestCreated )
             {
                 getLog().debug(
                     "This project did not have a META-INF/MANIFEST.MF file before, so a new file was created." );
             }
 
             Manifest mf = readManifest( manifestFile );
             Attribute classPath = mf.getMainSection().getAttribute( "Class-Path" );
             List<String> classPathElements = new ArrayList<String>();
 
             boolean classPathExists;
             if ( classPath != null )
             {
                 classPathExists = true;
                 classPathElements.addAll( Arrays.asList( classPath.getValue().split( " " ) ) );
             }
             else
             {
                 classPathExists = false;
                 classPath = new Attribute( "Class-Path", "" );
             }
 
             if ( ( moduleLibDir != null ) && ( skinnyModules || ( skinnyWars && module instanceof WebModule ) ) )
             {
                 // Remove modules
                 for ( EarModule otherModule : getAllEarModules() )
                 {
                     if ( module.equals( otherModule ) )
                     {
                         continue;
                     }
                     // MEAR-189:
                     // We use the original name, cause in case of outputFileNameMapping
                     // we could not not delete it and it will end up in the resulting EAR and the WAR
                     // will not be cleaned up.
                     final File workLibDir = new File( workDirectory, moduleLibDir );
                     File artifact = new File( workLibDir, module.getArtifact().getFile().getName() );
 
                     // MEAR-217
                     // If WAR contains files with timestamps, but EAR strips them away (useBaseVersion=true)
                     // the artifact is not found. Therefore respect the current fileNameMapping additionally.
 
                     if ( !artifact.exists() )
                     {
                         getLog().debug( "module does not exist with original file name." );
                         artifact = new File( workLibDir, otherModule.getBundleFileName() );
                         getLog().debug( "Artifact with mapping: " + artifact.getAbsolutePath() );
                     }
 
                     if ( !artifact.exists() )
                     {
                         getLog().debug( "Artifact with mapping does not exist." );
                         artifact = new File( workLibDir, otherModule.getArtifact().getFile().getName() );
                         getLog().debug( "Artifact with original file name: " + artifact.getAbsolutePath() );
                     }
 
                     if ( !artifact.exists() )
                     {
                         getLog().debug( "Artifact with original file name does not exist." );
                         final Artifact otherModuleArtifact = otherModule.getArtifact();
                         if ( otherModuleArtifact.isSnapshot() )
                         {
                             try
                             {
                                 artifact = new File( workLibDir, MappingUtils.evaluateFileNameMapping(
                                         ARTIFACT_DEFAULT_FILE_NAME_MAPPING, otherModuleArtifact ) );
                                 getLog()
                                     .debug( "Artifact with default mapping file name: " + artifact.getAbsolutePath() );
                             }
                             catch ( InterpolationException e )
                             {
                                 getLog().warn(
                                     "Failed to evaluate file name for [" + otherModule + "] module using mapping: "
                                         + ARTIFACT_DEFAULT_FILE_NAME_MAPPING );
                             }
                         }
                     }
 
                     if ( artifact.exists() )
                     {
                         getLog().debug( " -> Artifact to delete: " + artifact );
                         if ( !artifact.delete() )
                         {
                             getLog().error( "Could not delete '" + artifact + "'" );
                         }
                     }
                 }
             }
 
             // Modify the classpath entries in the manifest
             final boolean forceClassPathModification =
                 javaEEVersion.lt( JavaEEVersion.FIVE ) || defaultLibBundleDir == null;
             final boolean classPathExtension = !skipClassPathModification || forceClassPathModification;
             for ( EarModule otherModule : getModules() )
             {
                 if ( module.equals( otherModule ) )
                 {
                     continue;
                 }
                 final int moduleClassPathIndex = findModuleInClassPathElements( classPathElements, otherModule );
                 if ( moduleClassPathIndex != -1 )
                 {
                     if ( otherModule.isClassPathItem() )
                     {
                         classPathElements.set( moduleClassPathIndex, otherModule.getUri() );
                     }
                     else
                     {
                         classPathElements.remove( moduleClassPathIndex );
                     }
                 }
                 else if ( otherModule.isClassPathItem() && classPathExtension )
                 {
                     classPathElements.add( otherModule.getUri() );
                 }
             }
 
             // Remove provided modules from classpath
             for ( EarModule otherModule : getProvidedEarModules() )
             {
                 final int moduleClassPathIndex = findModuleInClassPathElements( classPathElements, otherModule );
                 if ( moduleClassPathIndex != -1 )
                 {
                     classPathElements.remove( moduleClassPathIndex );
                 }
             }
 
             if ( !skipClassPathModification || !classPathElements.isEmpty() || classPathExists )
             {
                 classPath.setValue( StringUtils.join( classPathElements.iterator(), " " ) );
                 mf.getMainSection().addConfiguredAttribute( classPath );
 
                 // Write the manifest to disk
                 try ( FileOutputStream out = new FileOutputStream( manifestFile );
                       OutputStreamWriter writer = new OutputStreamWriter( out, StandardCharsets.UTF_8 ) )
                 {
                     mf.write( writer );
                 }
             }
 
             if ( original.isFile() )
             {
                 // Pack up the archive again from the work directory
                 if ( !original.delete() )
                 {
                     getLog().error( "Could not delete original artifact file " + original );
                 }
 
                 getLog().debug( "Zipping module" );
                 zipArchiver.setDestFile( original );
                 zipArchiver.addDirectory( workDirectory );
                 zipArchiver.createArchive();
             }
         }
         catch ( ManifestException | IOException | ArchiverException e )
         {
             throw new MojoFailureException( e.getMessage(), e );
         }
     }
 
     private static Manifest readManifest( File manifestFile )
         throws IOException
     {
         // Read the manifest from disk
         try ( FileInputStream in = new FileInputStream( manifestFile ) )
         {
             Manifest manifest = new Manifest( in );
             return manifest;
         }
     }
 
     private Collection<String> initOutdatedResources()
     {
         final Collection<String> outdatedResources = new ArrayList<>();
         
         if ( getWorkDirectory().exists() )
         {
             try
             {
                 Files.walkFileTree( getWorkDirectory().toPath(), new SimpleFileVisitor<Path>() 
                 {
                     @Override
                     public FileVisitResult visitFile( Path file, BasicFileAttributes attrs )
                         throws IOException
                     {
                         outdatedResources.add( getWorkDirectory().toPath().relativize( file ).toString() );
                         return super.visitFile( file, attrs );
                     }
                 } );
             }
             catch ( IOException e )
             {
                 getLog().warn( "Can't detect outdated resources", e );
             } 
         }
         return outdatedResources;
     }
 
     private void deleteOutdatedResources( final Collection<String> outdatedResources )
     {
         final long startTime = session.getStartTime().getTime();
         
         for ( String outdatedResource : outdatedResources )
         {
             if ( new File( getWorkDirectory(), outdatedResource ).lastModified() < startTime )
             {
                 getLog().info( "deleting outdated resource " + outdatedResource );
                 new File( getWorkDirectory(), outdatedResource ).delete();
             }
         }
     }
 
     /**
      * Searches for the given JAR module in the list of classpath elements. If JAR module is found among specified
      * classpath elements then returns index of first matching element. Returns -1 otherwise.
      *
      * @param classPathElements classpath elements to search among
      * @param module module to find among classpath elements defined by {@code classPathElements}
      * @return -1 if {@code module} was not found in {@code classPathElements} or index of item of
      * {@code classPathElements} which matches {@code module}
      */
     private int findModuleInClassPathElements( final List<String> classPathElements, final EarModule module )
     {
         if ( classPathElements.isEmpty() )
         {
             return -1;
         }
         int moduleClassPathIndex = classPathElements.indexOf( module.getBundleFileName() );
         if ( moduleClassPathIndex != -1 )
         {
             return moduleClassPathIndex;
         }
         final Artifact artifact = module.getArtifact();
         moduleClassPathIndex = classPathElements.indexOf( artifact.getFile().getName() );
         if ( moduleClassPathIndex != -1 )
         {
             return moduleClassPathIndex;
         }
         if ( artifact.isSnapshot() )
         {
             try
             {
                 moduleClassPathIndex = classPathElements
                     .indexOf( MappingUtils.evaluateFileNameMapping( ARTIFACT_DEFAULT_FILE_NAME_MAPPING, artifact ) );
                 if ( moduleClassPathIndex != -1 )
                 {
                     return moduleClassPathIndex;
                 }
             }
             catch ( InterpolationException e )
             {
                 getLog().warn( "Failed to evaluate file name for [" + module + "] module using mapping: "
                     + ARTIFACT_DEFAULT_FILE_NAME_MAPPING );
             }
         }
         return classPathElements.indexOf( module.getUri() );
     }
 }