Validate.isTrue(sourceDirectory.isDirectory(), sourceDirectory.getName() + " is not a directory");

        try {

            SourceInclusionScanner scanner = new StaleSourceScanner();

            return scanner.getIncludedSources(sourceDirectory, outputDirectory);

        } catch (InclusionScanException e) {

            throw new MojoExecutionException("Error scanning source root: \'" + sourceDirectory + "\'.", e);

        }

    }

    SourceInclusionScanner scanner = new SimpleSourceInclusionScanner(includes, excludes);

    // Note: we must declare a dummy "source mapping", or the Plexus SimpleSourceInclusionScanner won't work

    // (as per http://maven.apache.org/plugins/maven-clover-plugin/2.4/xref/org/apache/maven/plugin/clover/CloverInstrumentInternalMojo.html )

    try {

      outputManifestFile.getParentFile().mkdirs();

      outputManifestFile.createNewFile(); // create it if it doesn't yet exist

    } catch (IOException e) {

    private Set searchNodeFiles() throws MojoExecutionException {

        final SuffixMapping mapping    = new SuffixMapping(".java", ".java");

        final SuffixMapping mappingCAP = new SuffixMapping(".JAVA", ".JAVA");

        final SourceInclusionScanner scanner = new StaleSourceScanner(staleMillis);

        scanner.addSourceMapping(mappingCAP);

        File directory = new File(nodeDirectory);

        if (nodePackage!=null && nodePackage.trim().length()!=0) {

            directory = new File(directory, nodePackage.replace('.', '/'));

        }

        final SuffixMapping mapping    = new SuffixMapping(".java", ".java");

        final SuffixMapping mappingCAP = new SuffixMapping(".JAVA", ".JAVA");

        final SourceInclusionScanner scanner = new StaleSourceScanner(staleMillis);

        scanner.addSourceMapping(mapping);

        File directory = new File(nodeDirectory);

        if (nodePackage!=null && nodePackage.trim().length()!=0) {

            directory = new File(directory, nodePackage.replace('.', '/'));

        }

        if (!directory.isDirectory()) {

        final String        extCAP     = ext.toUpperCase();

        final SuffixMapping mapping    = new SuffixMapping(ext,    ext);

        final SuffixMapping mappingCAP = new SuffixMapping(extCAP, extCAP);

        final SourceInclusionScanner scanner = new StaleSourceScanner(staleMillis);

        scanner.addSourceMapping(mappingCAP);

        final File outDir = new File(timestampDirectory);

        try {

            return scanner.getIncludedSources(sourceDir, outDir);

        } catch (InclusionScanException e) {

        final SuffixMapping mapping    = new SuffixMapping(ext,    ext);

        final SuffixMapping mappingCAP = new SuffixMapping(extCAP, extCAP);

        final SourceInclusionScanner scanner = new StaleSourceScanner(staleMillis);

        scanner.addSourceMapping(mapping);

        final File outDir = new File(timestampDirectory);

        try {

            return scanner.getIncludedSources(sourceDir, outDir);

        } catch (InclusionScanException e) {

            throw new MojoExecutionException("Error scanning source root \"" + sourceDir.getPath() +

        SourceInclusionScanner scanner = getSourceInclusionScanner( inputFileEnding );

        SourceMapping mapping = getSourceMapping( compilerConfiguration, compiler );

        Set<File> compileSources = new HashSet<File>();

        for ( String sourceRoot : getCompileSourceRoots() )

        {