> public class RuntimeExec {
>    
>     public RuntimeExec() {       
>     }
>
>     /**
>     * Executes a command
>     * @param command
>     * @return The result of the command
>     * @throws IOException
>     */
>     public String exec(String command) throws IOException {
>         int exitValue = 0;//0 - executed ok.
>         String stdOut = null;
>         String stdErr = null;
>         String result = null;//result from clearcase operation
>         StringBuffer out = new StringBuffer();
>         StringBuffer err = new StringBuffer();
>         Process process = Runtime.getRuntime().exec(command);
>         StreamConverter outSc = new StreamConverter(process.getInputStream(),out);
>         StreamConverter errSc = new StreamConverter(process.getErrorStream(),err);
>         Thread outThread = new Thread(outSc);
>         Thread errThread = new Thread(errSc);
>         outThread.start();
>         errThread.start();
>         //Wait until the prosess finish
>        
>         long delayMillis = 5000; // 5 seconds
>         try {
>             //wait for threads to die.
>             outThread.join(delayMillis);
>             if (outThread.isAlive()) {
>                 // Timeout occurred; thread has not finished
>             } else {
>                 // Finished
>             }
>         } catch (InterruptedException e) {
>             // Thread was interrupted
>         }
>        
>      
>        
>
>       return result;  
>      
>
>     }
>    
>     // bridge between byte and character stream.
>     class StreamConverter implements Runnable {
>         private InputStreamReader isr = null;
>         private StringBuffer sb = null;
>         // end of steam
>         private static final int EOS = -1;
>
>         public StreamConverter(InputStream is, StringBuffer sb) {
>             isr = new InputStreamReader(is);
>             this.sb = sb;
>         }
>        
>         public void run() {
>             int character = 0;
>             try{
>                 while ((character = isr.read()) != EOS) {
>                     sb.append((char)character);
>                 }
>             }catch(IOException ioe){
>                 System.out.println("Could not read std out!"+ioe.getMessage());
>             }
>         }
>        
>     }
>
>        
> }