Java Utililty Methods exec

Process process = null;
Runtime runtime = Runtime.getRuntime();
String osName = System.getProperty("os.name");
if (osName.toLowerCase().startsWith("win")) {
    process = runtime.exec((new String[] { "cmd", "/C", cmd }));
} else {
    process = runtime.exec((new String[] { "sh", "-c", cmd }));
return process;

return isWindows() ? "rake.bat" : "rake";

final ProcessBuilder builder = new ProcessBuilder(command);
builder.redirectErrorStream(true);
final Process p = builder.start();
final InputStream is = p.getInputStream();
int c;
while ((c = is.read()) >= 0)
    if (out) {
        System.out.write(c);
...

try {
    String command = "cmd /C start /wait " + process;
    Process p = Runtime.getRuntime().exec(command);
    p.waitFor();
} catch (IOException | InterruptedException e) {
    logError(e);
    return false;
return true;

Process process = Runtime.getRuntime().exec(cmdline);
final Thread thread = Thread.currentThread();
Thread waitTimeout = new Thread() {
    public void run() {
        try {
            Thread.sleep(timeout);
            thread.interrupt();
        } catch (InterruptedException ignore) {
...

StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
for (Throwable e : execptions) {
    e.printStackTrace(pw);
if (rep) {
    return sw.toString().replaceAll("\r\n|\n\r|\r|\n", "<br/>\n");
return sw.toString();

Process child2 = Runtime.getRuntime().exec(scriptCommand);
String line;
BufferedReader in = new BufferedReader(new InputStreamReader(child2.getInputStream()));
while ((line = in.readLine()) != null) {
    execLog.println(line);
    execLog.flush();
BufferedReader errorReader = new BufferedReader(new InputStreamReader(child2.getErrorStream()));
...

return Runtime.getRuntime().exec(getShellArgs(cmd));

Runtime rt = Runtime.getRuntime();
Process process = rt.exec(shell);
return getOutputMsg(process);

String[] cmd = { "/bin/bash", "-c", "echo " + _pw + "| sudo -S " + _sudoCmd };
try {
    Runtime.getRuntime().exec(cmd);
} catch (IOException e) {
    e.printStackTrace();