return (reader instanceof BufferedReader)
        ? (BufferedReader) reader
        : new BufferedReader(reader);
  }

  /**
   * Opens a new {@link Stream} for reading text one line at a time from this source. This method
   * returns a new, independent stream each time it is called.
   *
   * <p>The returned stream is lazy and only reads from the source in the terminal operation. If an

      off += len;
    }
    lineBuf.finish();
    return lines;
  }

  private static List<String> readUsingJava(String input, int chunk) throws IOException {
    BufferedReader r = new BufferedReader(getChunkedReader(input, chunk));
    List<String> lines = new ArrayList<>();
    String line;
    while ((line = r.readLine()) != null) {
      lines.add(line);
    }
    r.close();

        int lineNumber = 0;
        List<Error> errorsForFile = new ArrayList<>();
        File sourceFile = getReleaseNotesFile().get().getAsFile();

        try (BufferedReader br = new BufferedReader(new FileReader(sourceFile))) {
            String line = br.readLine();
            while (line != null) {
                lineNumber++;

            if (is == null) {
                throw new IOException("Resource not found: " + resourcePath);
            }
            try (BufferedReader br = new BufferedReader(new InputStreamReader(is))) {
                String line;
                while ((line = br.readLine()) != null) {
                    sb.append(line);
                }
            }
        }

        final String dictionaryPath = System.getProperty("fess.dictionary.path", StringUtil.EMPTY);
        final StringBuilder sb = new StringBuilder();
        try (BufferedReader br =
                new BufferedReader(new InputStreamReader(this.getClass().getClassLoader().getResourceAsStream(getSuggestAnalyzerPath())))) {

            String line;
            while ((line = br.readLine()) != null) {

        String originalHead = stdout("git", "rev-parse", "HEAD").trim();

        List<String> commits;
        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8))) {
            commits = br.lines()
                .map(String::trim)
                .filter(s -> !s.isEmpty())

            }
        } finally {
            THREAD_POOL.shutdown();
        }
    }

    private static List<String> readCommitsFromStdin() throws IOException {
        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8))) {
            return br.lines()
                .map(String::trim)
                .filter(s -> !s.isEmpty())

            ThreadDumpUtil.writeThreadDump(tempFile.toString());

            // Read and verify file content
            List<String> lines = new ArrayList<>();
            try (BufferedReader reader =
                    new BufferedReader(new InputStreamReader(new FileInputStream(tempFile.toFile()), Constants.CHARSET_UTF_8))) {
                String line;
                while ((line = reader.readLine()) != null) {

import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import com.google.common.io.SourceSinkFactory.ByteSourceFactory;
import com.google.common.io.SourceSinkFactory.CharSourceFactory;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import java.io.StringWriter;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Map.Entry;

        final String dictionaryPath = System.getProperty("fess.dictionary.path", StringUtil.EMPTY);
        final StringBuilder sb = new StringBuilder();
        try (BufferedReader br = new BufferedReader(
                new InputStreamReader(this.getClass().getClassLoader().getResourceAsStream("suggest_indices/suggest_settings.json")));) {

            String line;