Java Utililty Methods FileInputStream Copy

if (src.isFile()) {
    File tgt = new File(toDir, src.getName());
    if (tgt.createNewFile()) {
        byte[] data = getContents(src);
        setContents(tgt, data);
        return true;
return false;

FileOutputStream os = null;
try (FileInputStream is = new FileInputStream(srcFile)) {
    os = new FileOutputStream(destFile);
    byte[] buffer = new byte[1024];
    int bcount;
    while ((bcount = is.read(buffer)) > 0)
        os.write(buffer, 0, bcount);
} finally {
...

FileOutputStream fos = null;
FileInputStream fis = null;
try {
    byte[] tempBuff = new byte[10240];
    fis = new FileInputStream(srcFile);
    fos = new FileOutputStream(destFile);
    int readCnt;
    while (true) {
...

InputStream in = new FileInputStream(srcFile);
copyFile(in, destFile);
in.close();

copyFile(srcFile, destFile, true);

FileOutputStream fos = new FileOutputStream(destFile);
try {
    copyToOutputStream(srcFile, fos);
} finally {
    fos.close();

try {
    int bytesum = 0;
    int byteread = 0;
    InputStream inStream = new FileInputStream(srcFile);
    FileOutputStream fs = new FileOutputStream(destFile);
    byte[] buffer = new byte[1444];
    while ((byteread = inStream.read(buffer)) != -1) {
        bytesum += byteread;
...

boolean result = false;
try {
    InputStream in = new FileInputStream(srcFile);
    try {
        result = copyToFile(in, destFile);
    } finally {
        in.close();
} catch (IOException e) {
    result = false;
return result;

if (!srcFile.getPath().toLowerCase().endsWith(JPG) && !srcFile.getPath().toLowerCase().endsWith(JPEG)) {
    return;
final InputStream in = new FileInputStream(srcFile);
final OutputStream out = new FileOutputStream(destFile);
try {
    long millis = System.currentTimeMillis();
    CRC32 checksum;
...

if (!(srcFile.exists() && srcFile.isFile()))
    throw new IllegalArgumentException("Source file doesn't exist: " + srcFile.getAbsolutePath());
if (destFile.exists() && destFile.isDirectory())
    throw new IllegalArgumentException("Destination file is directory: " + destFile.getAbsolutePath());
FileInputStream in = new FileInputStream(srcFile);
FileOutputStream out = new FileOutputStream(destFile);
byte[] buffer = new byte[4096];
int no = 0;
...