compiler-jx/src/main/java/org/apache/royale/compiler/clients/COMPJSCNative.java [651:859]:
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        watcherThread.start();
    }

    /**
     * Build target artifact.
     * 
     * @throws InterruptedException threading error
     * @throws IOException IO error
     * @throws ConfigurationException
     */
    @Override
    protected void buildArtifact() throws InterruptedException, IOException,
            ConfigurationException
    {
        jsTarget = buildJSTarget();
    }

    private IJSApplication buildJSTarget() throws InterruptedException,
            FileNotFoundException, ConfigurationException
    {
        final List<ICompilerProblem> problemsBuildingSWF = new ArrayList<ICompilerProblem>();

        final IJSApplication app = buildApplication(project,
                config.getMainDefinition(), null, problemsBuildingSWF);
        problems.addAll(problemsBuildingSWF);
        if (app == null)
        {
            ICompilerProblem problem = new UnableToBuildSWFProblem(
                    getOutputFilePath());
            problems.add(problem);
        }

        return app;
    }

    /**
     * Replaces RoyaleApplicationProject::buildSWF()
     * 
     * @param applicationProject
     * @param rootClassName
     * @param problems
     * @return
     * @throws InterruptedException
     */

    private IJSApplication buildApplication(CompilerProject applicationProject,
            String rootClassName, ICompilationUnit mainCU,
            Collection<ICompilerProblem> problems) throws InterruptedException,
            ConfigurationException, FileNotFoundException
    {
        Collection<ICompilerProblem> fatalProblems = applicationProject.getFatalProblems();
        if (!fatalProblems.isEmpty())
        {
            problems.addAll(fatalProblems);
            return null;
        }

        return ((JSTarget) target).build(mainCU, problems);
    }

    /**
     * Get the output file path. If {@code -output} is specified, use its value;
     * otherwise, use the same base name as the target file.
     * 
     * @return output file path
     */
    private String getOutputFilePath()
    {
        if (config.getOutput() == null)
        {
            final String extension = "." + project.getBackend().getOutputExtension();
            return FilenameUtils.removeExtension(config.getTargetFile()).concat(
                    extension);
        }
        else
        {
            String outputFolderName = config.getOutput();
            return outputFolderName;
        }
    }

    /**
     * Get the output class file. This includes the (sub)directory in which the
     * original class file lives. If the directory structure doesn't exist, it
     * is created, if specified.
     * 
     * @author Erik de Bruin
     * @param qname
     * @param outputFolder
     * @param createDirs
     * @return output class file path
     */
    private File getOutputClassFile(String qname, File outputFolder, boolean createDirs)
    {
        String[] cname = qname.split("\\.");
        String sdirPath = outputFolder + File.separator;
        if (cname.length > 0)
        {
            for (int i = 0, n = cname.length - 1; i < n; i++)
            {
                sdirPath += cname[i] + File.separator;
            }

            if (createDirs)
            {
                File sdir = new File(sdirPath);
                if (!sdir.exists())
                    sdir.mkdirs();
            }

            qname = cname[cname.length - 1];
        }

        return new File(sdirPath + qname + "." + project.getBackend().getOutputExtension());
    }

    /**
     * Similar to getOutputClassFile, but for the source map file.
     * 
     * @param qname
     * @param outputFolder
     * @param createDirs
     * @return output source map file path
     */
    private File getOutputSourceMapFile(String qname, File outputFolder, boolean createDirs)
    {
        String[] cname = qname.split("\\.");
        String sdirPath = outputFolder + File.separator;
        if (cname.length > 0)
        {
            for (int i = 0, n = cname.length - 1; i < n; i++)
            {
                sdirPath += cname[i] + File.separator;
            }

            if (createDirs)
            {
                File sdir = new File(sdirPath);
                if (!sdir.exists())
                    sdir.mkdirs();
            }

            qname = cname[cname.length - 1];
        }

        return new File(sdirPath + qname + "." + project.getBackend().getOutputExtension() + ".map");
    }

    /**
     * Mxmlc uses target file as the main compilation unit and derive the output
     * SWF file name from this file.
     * 
     * @return true if successful, false otherwise.
     * @throws InterruptedException
     */
    @Override
    protected boolean setupTargetFile() throws InterruptedException
    {
        config.getTargetFile();

        ITargetSettings settings = getTargetSettings();
        if (settings != null)
            project.setTargetSettings(settings);
        else
            return false;

        target = project.getBackend().createTarget(project,
                getTargetSettings(), null);

        return true;
    }

    private ITargetSettings getTargetSettings()
    {
        if (targetSettings == null)
            targetSettings = projectConfigurator.getTargetSettings(getTargetType());

        if (targetSettings == null)
            problems.addAll(projectConfigurator.getConfigurationProblems());

        return targetSettings;
    }

    /**
     * Validate target file.
     * 
     * @throws MustSpecifyTarget
     * @throws IOError
     */
    @Override
    protected void validateTargetFile() throws ConfigurationException
    {

    }

    protected String getProgramName()
    {
        return "compc";
    }

    protected boolean isCompc()
    {
        return true;
    }

    @Override
    protected TargetType getTargetType()
    {
        return TargetType.SWC;
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compiler-jx/src/main/java/org/apache/royale/compiler/clients/COMPJSCRoyale.java [718:926]:
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        watcherThread.start();
    }

    /**
     * Build target artifact.
     * 
     * @throws InterruptedException threading error
     * @throws IOException IO error
     * @throws ConfigurationException
     */
    @Override
    protected void buildArtifact() throws InterruptedException, IOException,
            ConfigurationException
    {
        jsTarget = buildJSTarget();
    }

    private IJSApplication buildJSTarget() throws InterruptedException,
            FileNotFoundException, ConfigurationException
    {
        final List<ICompilerProblem> problemsBuildingSWF = new ArrayList<ICompilerProblem>();

        final IJSApplication app = buildApplication(project,
                config.getMainDefinition(), null, problemsBuildingSWF);
        problems.addAll(problemsBuildingSWF);
        if (app == null)
        {
            ICompilerProblem problem = new UnableToBuildSWFProblem(
                    getOutputFilePath());
            problems.add(problem);
        }

        return app;
    }

    /**
     * Replaces RoyaleApplicationProject::buildSWF()
     * 
     * @param applicationProject
     * @param rootClassName
     * @param problems
     * @return
     * @throws InterruptedException
     */

    private IJSApplication buildApplication(CompilerProject applicationProject,
            String rootClassName, ICompilationUnit mainCU,
            Collection<ICompilerProblem> problems) throws InterruptedException,
            ConfigurationException, FileNotFoundException
    {
        Collection<ICompilerProblem> fatalProblems = applicationProject.getFatalProblems();
        if (!fatalProblems.isEmpty())
        {
            problems.addAll(fatalProblems);
            return null;
        }

        return ((JSTarget) target).build(mainCU, problems);
    }

    /**
     * Get the output file path. If {@code -output} is specified, use its value;
     * otherwise, use the same base name as the target file.
     * 
     * @return output file path
     */
    private String getOutputFilePath()
    {
        if (config.getOutput() == null)
        {
            final String extension = "." + project.getBackend().getOutputExtension();
            return FilenameUtils.removeExtension(config.getTargetFile()).concat(
                    extension);
        }
        else
        {
            String outputFolderName = config.getOutput();
            return outputFolderName;
        }
    }

    /**
     * Get the output class file. This includes the (sub)directory in which the
     * original class file lives. If the directory structure doesn't exist, it
     * is created if specified.
     * 
     * @author Erik de Bruin
     * @param qname
     * @param outputFolder
     * @param createDirs
     * @return output class file path
     */
    private File getOutputClassFile(String qname, File outputFolder, boolean createDirs)
    {
        String[] cname = qname.split("\\.");
        String sdirPath = outputFolder + File.separator;
        if (cname.length > 0)
        {
            for (int i = 0, n = cname.length - 1; i < n; i++)
            {
                sdirPath += cname[i] + File.separator;
            }

            if (createDirs)
            {
                File sdir = new File(sdirPath);
                if (!sdir.exists())
                    sdir.mkdirs();
            }

            qname = cname[cname.length - 1];
        }

        return new File(sdirPath + qname + "." + project.getBackend().getOutputExtension());
    }

    /**
     * Similar to getOutputClassFile, but for the source map file.
     * 
     * @param qname
     * @param outputFolder
     * @param createDirs
     * @return output source map file path
     */
    private File getOutputSourceMapFile(String qname, File outputFolder, boolean createDirs)
    {
        String[] cname = qname.split("\\.");
        String sdirPath = outputFolder + File.separator;
        if (cname.length > 0)
        {
            for (int i = 0, n = cname.length - 1; i < n; i++)
            {
                sdirPath += cname[i] + File.separator;
            }

            if (createDirs)
            {
                File sdir = new File(sdirPath);
                if (!sdir.exists())
                    sdir.mkdirs();
            }

            qname = cname[cname.length - 1];
        }

        return new File(sdirPath + qname + "." + project.getBackend().getOutputExtension() + ".map");
    }

    /**
     * Mxmlc uses target file as the main compilation unit and derive the output
     * SWF file name from this file.
     * 
     * @return true if successful, false otherwise.
     * @throws InterruptedException
     */
    @Override
    protected boolean setupTargetFile() throws InterruptedException
    {
        config.getTargetFile();

        ITargetSettings settings = getTargetSettings();
        if (settings != null)
            project.setTargetSettings(settings);
        else
            return false;

        target = project.getBackend().createTarget(project,
                getTargetSettings(), null);

        return true;
    }

    private ITargetSettings getTargetSettings()
    {
        if (targetSettings == null)
            targetSettings = projectConfigurator.getTargetSettings(getTargetType());

        if (targetSettings == null)
            problems.addAll(projectConfigurator.getConfigurationProblems());

        return targetSettings;
    }

    /**
     * Validate target file.
     * 
     * @throws MustSpecifyTarget
     * @throws IOError
     */
    @Override
    protected void validateTargetFile() throws ConfigurationException
    {

    }

    protected String getProgramName()
    {
        return "compc";
    }

    protected boolean isCompc()
    {
        return true;
    }

    @Override
    protected TargetType getTargetType()
    {
        return TargetType.SWC;
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