429      * @return  A new {@link Process} object for managing the subprocess
 430      *
 431      * @throws  SecurityException
 432      *          If a security manager exists and its
 433      *          {@link SecurityManager#checkExec checkExec}
 434      *          method doesn't allow creation of the subprocess
 435      *
 436      * @throws  IOException
 437      *          If an I/O error occurs
 438      *
 439      * @throws  NullPointerException
 440      *          If {@code cmdarray} is {@code null},
 441      *          or one of the elements of {@code cmdarray} is {@code null}
 442      *
 443      * @throws  IndexOutOfBoundsException
 444      *          If {@code cmdarray} is an empty array
 445      *          (has length {@code 0})
 446      *
 447      * @see     ProcessBuilder
 448      */
 449     public Process exec(String cmdarray[]) throws IOException {
 450         return exec(cmdarray, null, null);
 451     }
 452 
 453     /**
 454      * Executes the specified command and arguments in a separate process
 455      * with the specified environment.
 456      *
 457      * <p>This is a convenience method.  An invocation of the form
 458      * {@code exec(cmdarray, envp)}
 459      * behaves in exactly the same way as the invocation
 460      * {@link #exec(String[], String[], File) exec}{@code (cmdarray, envp, null)}.
 461      *
 462      * @param   cmdarray  array containing the command to call and
 463      *                    its arguments.
 464      *
 465      * @param   envp      array of strings, each element of which
 466      *                    has environment variable settings in the format
 467      *                    <i>name</i>=<i>value</i>, or
 468      *                    {@code null} if the subprocess should inherit
 469      *                    the environment of the current process.

 429      * @return  A new {@link Process} object for managing the subprocess
 430      *
 431      * @throws  SecurityException
 432      *          If a security manager exists and its
 433      *          {@link SecurityManager#checkExec checkExec}
 434      *          method doesn't allow creation of the subprocess
 435      *
 436      * @throws  IOException
 437      *          If an I/O error occurs
 438      *
 439      * @throws  NullPointerException
 440      *          If {@code cmdarray} is {@code null},
 441      *          or one of the elements of {@code cmdarray} is {@code null}
 442      *
 443      * @throws  IndexOutOfBoundsException
 444      *          If {@code cmdarray} is an empty array
 445      *          (has length {@code 0})
 446      *
 447      * @see     ProcessBuilder
 448      */
 449     public Process exec(String[] cmdarray) throws IOException {
 450         return exec(cmdarray, null, null);
 451     }
 452 
 453     /**
 454      * Executes the specified command and arguments in a separate process
 455      * with the specified environment.
 456      *
 457      * <p>This is a convenience method.  An invocation of the form
 458      * {@code exec(cmdarray, envp)}
 459      * behaves in exactly the same way as the invocation
 460      * {@link #exec(String[], String[], File) exec}{@code (cmdarray, envp, null)}.
 461      *
 462      * @param   cmdarray  array containing the command to call and
 463      *                    its arguments.
 464      *
 465      * @param   envp      array of strings, each element of which
 466      *                    has environment variable settings in the format
 467      *                    <i>name</i>=<i>value</i>, or
 468      *                    {@code null} if the subprocess should inherit
 469      *                    the environment of the current process.