Java Utililty Methods InputStreamReader Read

ArrayList<String> lines = null;
FileReader fr = null;
BufferedReader br = null;
try {
    fr = new FileReader(new File(fileNm));
    br = new BufferedReader(fr);
    lines = new ArrayList<String>();
    String line = null;
...

try {
    File file = new File(filePath);
    FileInputStream fis = new FileInputStream(file);
    BufferedReader br = new BufferedReader(new InputStreamReader(fis));
    List rowList = new ArrayList();
    String line = "";
    while ((line = br.readLine()) != null) {
        rowList.add(line);
...

if (filePath == null) {
    filePath = "";
filePath = filePath.replaceAll(" ", "");
File file = new File(filePath);
List<String> list = new ArrayList<String>();
if (file != null && file.getAbsolutePath() != null && !file.getAbsolutePath().equals("") && file.exists()
        && !file.isDirectory()) {
...

BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(filePath), "UTF-8"));
return read(reader);

String rs;
FileInputStream fos;
Reader reader;
BufferedReader buferReader;
StringBuilder text;
try {
    fos = new FileInputStream(filePath);
    reader = new java.io.InputStreamReader(fos, "UTF-8");
...

String encoding = getEncoding(filePath);
BufferedReader bufferedReader = null;
StringBuilder text = new StringBuilder();
try {
    bufferedReader = new BufferedReader(
            new InputStreamReader(new FileInputStream(filePath), "windows-1252"));
    char[] buffer = new char[1024 * 16];
    int length;
...

String fileContent = "";
try {
    File f = new File(filePath);
    if (f.isFile() && f.exists()) {
        InputStreamReader read = new InputStreamReader(new FileInputStream(f), "UTF-8");
        BufferedReader reader = new BufferedReader(read);
        String line;
        while ((line = reader.readLine()) != null) {
...

StringBuffer sb = new StringBuffer();
BufferedReader br = null;
try {
    br = new BufferedReader(new InputStreamReader(new FileInputStream(filePath), charsetName));
    String data = null;
    int i = 0;
    while ((data = br.readLine()) != null) {
        if (i <= lineEnd && i >= lineNow) {
...

char[] buffer = new char[4096];
int len = 0;
StringBuffer content = new StringBuffer(4096);
InputStreamReader fr = null;
BufferedReader br = null;
try {
    fr = new InputStreamReader(new FileInputStream(input), ENCODING);
    br = new BufferedReader(fr);
...

try {
    InputStream in = new FileInputStream(new File(location));
    BufferedReader reader = new BufferedReader(new InputStreamReader(in));
    StringBuilder out = new StringBuilder();
    String line;
    while ((line = reader.readLine()) != null) {
        out.append(line);
    reader.close();
    return out.toString();
} catch (Exception e) {
    System.out.println(String.format("CWD = %s", System.getProperty("user.dir")));
    System.out.println(e);
    return "";