tomcat7-maven-plugin/src/main/java/org/apache/tomcat/maven/plugin/tomcat7/run/AbstractExecWarMojo.java [613:684]:
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        return res.toArray( new String[res.size()] );
    }


    /**
     * return file can be deleted
     */
    protected File addContextXmlToWar( File contextXmlFile, File warFile )
        throws IOException, ArchiveException
    {
        ArchiveOutputStream os = null;
        OutputStream warOutputStream = null;
        File tmpWar = File.createTempFile( "tomcat", "war-exec" );
        tmpWar.deleteOnExit();

        try
        {
            warOutputStream = new FileOutputStream( tmpWar );
            os = new ArchiveStreamFactory().createArchiveOutputStream( ArchiveStreamFactory.JAR, warOutputStream );
            os.putArchiveEntry( new JarArchiveEntry( "META-INF/context.xml" ) );
            IOUtils.copy( new FileInputStream( contextXmlFile ), os );
            os.closeArchiveEntry();

            JarFile jarFile = new JarFile( warFile );
            extractJarToArchive( jarFile, os, null );
            os.flush();
        }
        finally
        {
            IOUtils.closeQuietly( os );
            IOUtils.closeQuietly( warOutputStream );
        }
        return tmpWar;
    }

    /**
     * Copy the contents of a jar file to another archive
     *
     * @param file The input jar file
     * @param os   The output archive
     * @throws IOException
     */
    protected void extractJarToArchive( JarFile file, ArchiveOutputStream os, String[] excludes )
        throws IOException
    {
        Enumeration<? extends JarEntry> entries = file.entries();
        while ( entries.hasMoreElements() )
        {
            JarEntry j = entries.nextElement();

            if ( excludes != null && excludes.length > 0 )
            {
                for ( String exclude : excludes )
                {
                    if ( SelectorUtils.match( exclude, j.getName() ) )
                    {
                        continue;
                    }
                }
            }

            if ( StringUtils.equalsIgnoreCase( j.getName(), "META-INF/MANIFEST.MF" ) )
            {
                continue;
            }
            os.putArchiveEntry( new JarArchiveEntry( j.getName() ) );
            IOUtils.copy( file.getInputStream( j ), os );
            os.closeArchiveEntry();
        }
        if ( file != null )
        {
            file.close();
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tomcat8-maven-plugin/src/main/java/org/apache/tomcat/maven/plugin/tomcat8/run/AbstractExecWarMojo.java [605:676]:
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        return res.toArray( new String[res.size()] );
    }


    /**
     * return file can be deleted
     */
    protected File addContextXmlToWar( File contextXmlFile, File warFile )
        throws IOException, ArchiveException
    {
        ArchiveOutputStream os = null;
        OutputStream warOutputStream = null;
        File tmpWar = File.createTempFile( "tomcat", "war-exec" );
        tmpWar.deleteOnExit();

        try
        {
            warOutputStream = new FileOutputStream( tmpWar );
            os = new ArchiveStreamFactory().createArchiveOutputStream( ArchiveStreamFactory.JAR, warOutputStream );
            os.putArchiveEntry( new JarArchiveEntry( "META-INF/context.xml" ) );
            IOUtils.copy( new FileInputStream( contextXmlFile ), os );
            os.closeArchiveEntry();

            JarFile jarFile = new JarFile( warFile );
            extractJarToArchive( jarFile, os, null );
            os.flush();
        }
        finally
        {
            IOUtils.closeQuietly( os );
            IOUtils.closeQuietly( warOutputStream );
        }
        return tmpWar;
    }

    /**
     * Copy the contents of a jar file to another archive
     *
     * @param file The input jar file
     * @param os   The output archive
     * @throws IOException
     */
    protected void extractJarToArchive( JarFile file, ArchiveOutputStream os, String[] excludes )
        throws IOException
    {
        Enumeration<? extends JarEntry> entries = file.entries();
        while ( entries.hasMoreElements() )
        {
            JarEntry j = entries.nextElement();

            if ( excludes != null && excludes.length > 0 )
            {
                for ( String exclude : excludes )
                {
                    if ( SelectorUtils.match( exclude, j.getName() ) )
                    {
                        continue;
                    }
                }
            }

            if ( StringUtils.equalsIgnoreCase( j.getName(), "META-INF/MANIFEST.MF" ) )
            {
                continue;
            }
            os.putArchiveEntry( new JarArchiveEntry( j.getName() ) );
            IOUtils.copy( file.getInputStream( j ), os );
            os.closeArchiveEntry();
        }
        if ( file != null )
        {
            file.close();
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