Stuck with problem using waitFor()

Question

Hi,
I wrote a program which will run in a loop like this
for(int i=0;i<theme_caseidVec.size();i++)
String proj_theme="",proj_case_id="",repository_name ="";
String[] Details=new String[2];
Details=(String[])theme_caseidVec.get(i);
proj_theme = Details[0];
proj_case_id = Details[1];
repository_name = (String)CVSRepoHash.get(proj_theme);
path = properties.getProperty(proj_case_id);
if(proj_theme!= null && proj_case_id!= null && repository_name!= null && !repository_name.equals("0") && path!= null)
System.out.println("repository_name: "+repository_name+"proj_theme: "+proj_theme+"proj_case_id :"+proj_case_id);
res = checkoutByProj(repository_name,proj_theme,path);
and i will be invoking the following method each time for more than 200 times.
public synchronized int checkoutByProj(String repository_name,String proj_theme,String proj_path)
String cmd = "";
int i=0;
cmd = "bash /home/abc/cvsCheckoutProj.sh ";
cmd = cmd.concat(repository_name.trim());
cmd = cmd.concat(" ");
cmd = cmd.concat(proj_theme.trim());
cmd = cmd.concat(" ");
cmd = cmd.concat(proj_path.trim());
File workDir = new File("/home/abc");
try
System.out.println("Command:" + cmd);
Process p = Runtime.getRuntime().exec(cmd, null, workDir);
i = p.waitFor();
catch(Exception e)
System.out.println(e);
cmd = "";
return i;
But i am not able to fully execute this code till the end.
Its geting hanged and nothing is displayed in the console.
Can any one suggest me the solution for this problem.

Answer 1

String[] cmd = {"bash", "-c", "/home/abc/cvsCheckoutProj.sh", repository_name.trim()), proj_theme.trim(), proj_path.trim()};
File workDir = new File("/home/abc");
Process p = Runtime.getRuntime().exec(cmd, null, workDir);Make sure you handle the Process stdout and stderr as recommended in http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html .