Examples of java.lang.ProcessBuilder.start()

java.lang.ProcessBuilder.start()
Starts a new process using the attributes of this process builder.
The new process will invoke the command and arguments given by {@link #command()}, in a working directory as given by {@link #directory()}, with a process environment as given by {@link #environment()}.
This method checks that the command is a valid operating system command. Which commands are valid is system-dependent, but at the very least the command must be a non-empty list of non-null strings.
If there is a security manager, its {@link SecurityManager#checkExec checkExec}method is called with the first component of this object's command array as its argument. This may result in a {@link SecurityException} being thrown.
Starting an operating system process is highly system-dependent. Among the many things that can go wrong are:
- The operating system program file was not found.
- Access to the program file was denied.
- The working directory does not exist.
In such cases an exception will be thrown. The exact nature of the exception is system-dependent, but it will always be a subclass of {@link IOException}.
Subsequent modifications to this process builder will not affect the returned {@link Process}.
@return A new {@link Process} object for managing the subprocess @throws NullPointerException If an element of the command list is null @throws IndexOutOfBoundsException If the command is an empty list (has size 0) @throws SecurityException If a security manager exists and its {@link SecurityManager#checkExec checkExec}method doesn't allow creation of the subprocess @throws IOException If an I/O error occurs @see Runtime#exec(String[],String[],java.io.File) @see SecurityManager#checkExec(String)

      pb = new ProcessBuilder("bash", "-c", MAC_SCRIPT);    //$NON-NLS-1$//$NON-NLS-2$
    } else {
      return null;
    }
    try {
      Process p = pb.start();
      String line;
      BufferedReader input = new BufferedReader
          (new InputStreamReader(p.getInputStream()));
      line = input.readLine();
      input.close();

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      ProcessBuilder pb = new ProcessBuilder(as);
      pb.redirectErrorStream(true);
      java.lang.Process p = null;
      StreamCopyThread sct = null; 
      try {
        p = pb.start();
        InputStream is = p.getInputStream();
        sct = new StreamCopyThread(is, m_sp);
        sct.start();
        p.waitFor();
      }

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    }
    Process p;
    int returnStatus;
    String stdoutData, stderrData;
    try {
      p = pb.start();
      p.getOutputStream().close();
      // We need to read data from the output steams.
      // Why? Because if we don't read from them, then the process we have started will fill the
      // buffers and block. We will be in a deadlock.
      // If there were only one stream, we could just do repeated calls to read() until we got

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    String command = getQueueInfoCommand[0] + " " + getQueueInfoCommand[1]
        + " " + getQueueInfoCommand[2];
    ProcessBuilder pb = new ProcessBuilder(getQueueInfoCommand);


    Process p = pb.start();


    Timer timeout = new Timer();
    TorqueTimerTask torqueTimerTask = new TorqueTimerTask(p, command);
    timeout.schedule(torqueTimerTask, TorqueTimerTask.timeoutInterval * 1000);

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    qstatCommand[2] = sb.toString();


    String command = qstatCommand[0] + " " + qstatCommand[1] + " "
        + qstatCommand[2];
    ProcessBuilder pb = new ProcessBuilder(qstatCommand);
    Process p = pb.start();


    Timer timeout = new Timer();
    TorqueTimerTask torqueTimerTask = new TorqueTimerTask(p, command);
    timeout.schedule(torqueTimerTask, TorqueTimerTask.timeoutInterval * 1000);

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    String command = traceJobCommand[0] + " " + traceJobCommand[1] + " "
        + traceJobCommand[2];
    ProcessBuilder pb = new ProcessBuilder(traceJobCommand);


    Process p = pb.start();


    Timer timeout = new Timer();
    TorqueTimerTask torqueTimerTask = new TorqueTimerTask(p, command);
    timeout.schedule(torqueTimerTask, TorqueTimerTask.timeoutInterval * 1000);

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