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Process hanging on the process builder

I am working on java process builder to execute the windows external process(i.e., exe files). I have to get the process info and error using input stream, error stream to write it in some text files.
It's working sometimes and unexpectedly hanging sometimes.
When i invoke around three external process to execute one by one. Two process working and it's getting hang on third process only.
I could see the process exit value as 0 some times it's giving some other random value.
I have read the below blog and applied the same logic to execute the process but's not working for my scenarios.
Could anybody please help me to diagnose these problem...
//Starts to initiate the external process
//This code will pick three arguments from to execute the process sequentially
//it will pass the process commands through for loop one by one
Process p =new ProcessBuilder(s)
.directory(new File(je.getExecution().getWorkingDirectory()))
.redirectErrorStream(true)
.redirectOutput(file)
.start();
p.getOutputStream().close();
int processStatus= p.waitFor();
// if the process exits with 0 normal termination
Thanks in advance..,

The entire thing you are doing is error prone and it’s not worth trying to find out all of the mistakes, as you are making your life unnecessarily hard.
Note that you are calling redirectErrorStream(true), but still are trying to read from the error stream, which makes no sense. The error stream will always be empty under this condition. That said, if you already know about redirections, it’s not clear, why you don’t use them directly, instead of creating threads, manually copying data into StringWriters, etc.
Apparently, you want to use the working directory je.getExecution().getWorkingDirectory(), launch the command s and directing both, output and error, of the program to file. This can be achieved as easy as
new ProcessBuilder(s)
.directory(je.getExecution().getWorkingDirectory())
.redirectErrorStream(true).redirectOutput(file)
.start()
.waitFor();
The only remaining error source is that the launched process could wait for input from your side. Since you apparently don’t want to provide input, you can use
Process proc = new ProcessBuilder(s)
.directory(je.getExecution().getWorkingDirectory())
.redirectErrorStream(true).redirectOutput(file)
.start();
proc.getOutputStream().close();
proc.waitFor();
to denote that you won’t write any data. This will not stop the process, but when it tries to read something from its standard input, it will immediately get an end-of-file without blocking.
Which can be demonstrated with
Process proc = new ProcessBuilder("cmd", "/c", "pause")
.redirectErrorStream(true).redirectOutput(file)
.start();
proc.getOutputStream().close();
proc.waitFor();

Executing Unix Script through plink from JAVA Runtime

I am using below code to trigger script of Unix through Java.I am not able to figure out why this command is not working.
String cmd="E:\\plink.exe -ssh -l user -pw p123 10.xxx.xx.xx \"sh /home/try.sh\"";
System.out.println(cmd);
Process process=Runtime.getRuntime().exec(cmd) ;
process.destroy();
Do i need to make some correction in it?

Runtime.exec only starts the specified program/process. You immediately destroy it before it has time to connect and send the commmand, as you want it to. At a minimum you should .waitFor() it to complete.
You don't say if the script produces (any) output. If it does and you want anything to happen with that output, like being displayed or saved someplace, you need to read from Process.getInputStream() and do your thing. Also if your script needs input (less common) you need to write it to .getOutputStream().

how to increase the performance of cmd command in window

I am using java to call arp -s command and waiting for the process to finish in order to complete function .
String command ="arp -s "+entryIpAddress+" ee-ee-ee-ee-ee-ee-ee";
Process p=Runtime.getRuntime().exec(command);
p.waitFor();
but the calling of this process is taking more than the usual time so, is there a way to increase the performance of this method. i cannot remove the p.waitFor() my next function depend on the added entry.

Your code doesn't show any sign of effort towards allowing the process to complete ever. You are not consuming its output, so its output buffer will soon fill up, blocking further progress.
To make this task easier on yourself, please use the ProcessBuilder.

In Java What is the exit value of a process which is killed in the background through Linux shell using process id

Using Java, I am executing a process in linux environment like below
Process startPingProcess = Runtime.getRuntime()().exec(ping -c 50 74.125.228.71);
we check whether process has completed its execution using startPingProcess.exitValue() in java, it will return 0 if completed normally.
Suppose if I'm killing the above started process in the middle by executing below code
Runtime.getRuntime()().exec(kill -2 processid); - where processid is process id of above started process
What is exitValue of startPingProcess object?
Your help is much appreciated! Thanks

This is not a Java specific question. The return code will be the same for all Unix systems here (at least I have never seen a Unix system not behaving this way): 128 + the number of the signal which caused the process to terminate. No idea for Windows...
Therefore, 130 in your case. In C, you'd check (after a call to waitpid() for instance) whether a process has been terminated by a signal using WIFSIGNALED(status).

Is there an error/status log for java? My program just stops running without any output

I'm trying to benchmark execution time for a program I created. As I add more data for it to process it takes longer and I am trying to find out how long exactly and a few details about the program(number of loops, time for each loop,etc..) so I created a system.out.println... of the status messages I want. This program works with a small number of variables quickly, but to run it on a large amount I do: java my_program > results.txt &
I see the job running for about 2 hours than it vanishes, so assuming its finished I try to cat results.txt but its blank. If java was crashing, wouldn't the error message be in there also(I think I'm capturing all output)? If not, is there a place I can find this information?

You redirected stdout to a file, but any errors would have been written to strderr, which was not redirected. See http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-3.html for an example of how to redirect both stdout and stderr

You can do something like this
java my_program 1>results.txt 2>error_log.txt &
This would actually redirect your errors to error_log.txt and your sysouts to results.txt