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Java Runtime Exec Multithread

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Expected numbers for user engagement Why did the rebels need the Death Star plans? In this case you need to be declaring them in Y. The same problem arises when trying to execute "dig" using .exec(), so I doubt it is because of the specific program being called. How did you do ? check over here

close(); brErr. posted 6 years ago I thought you wanted to execute two Java applications. I don't know if it applies to your situation but if it does, it can be the key to the solution. "In MOM 2000, only a single instance of a particular And I sir, choose not to cloud my head with all the stuff about stuff about stuff. –Radu May 17 '14 at 19:52 1 @Radu sure thing.

Java Runtime Exec Example

For ntp commons.apache.org/net seems like a reasonable approach. Text caption constricted to table width What is the use of oil in this recipe? I modified it. Stack Overflow Podcast #97 - Where did you get that hat?!

It uses a BufferedReader to read in the data from getInputStream(). Word for fake religious people What are the laws concerning emulation? HTTP and FTP detection for corruption Why would a decision making machine decide to destroy itself? It's more portable to not rely on the OS shell commands anyway. –Bill Aug 25 '10 at 23:57 add a comment| up vote 1 down vote Why are you waiting for

Standard error streams shouldn't be buffered. –Isaac Dec 1 '12 at 3:39 Bizarre, though. Are there any alternatives to exec? See System src: setErr0(new PrintStream(new BufferedOutputStream(fdErr, 128), true)); –Evgeniy Dorofeev Dec 1 '12 at 3:14 Heads should roll for this. I have main class which makes me 1 process and that process SHOULD not block main program (that what I thought) and must do his work separately from main class. –helpmepls

asked 3 months ago viewed 43 times active 3 months ago Blog Developers, webmasters, and ninjas: what's in a job title? share|improve this answer edited Aug 2 '13 at 9:57 answered Aug 2 '13 at 7:01 Narendra Pathai 18.5k115485 Thanks for the immediate Response .I tried this approach with a Dropbox Password security more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Extensible code to support different HR rules more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback

Java Process Builder

Stack Overflow Podcast #97 - Where did you get that hat?! To be specific, the first command is executed for 10 minutes. Java Runtime Exec Example However, it runs very slowly, barely consuming machine processing. Executorservice My question is, Is it possible to synchronize the output on System.out using wait()/notify() instead of polling the alive status of each StreamGobbler in a while loop?

share|improve this answer answered Jan 21 at 11:21 Borislav Stoilov 1228 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign http://evollux.net/java-runtime/exec-runtime-java-example.html What's the right answer to "Check, Savings or Credit" for an overseas card in Australia? Some sample code to help you along your way: ExecutorService executor = Executors.newFixedThreadPool(4); executor.execute(new Runnable() { public void run() { //use ProcessBuilder here to make the process Process p = processBuilder.start(); Crack the lock code An idiom or phrase for when you're about to be ill Are the mountains surrounding Mordor natural?

And how is it going to affect C++ programming?0Constantly monitor dynamically updated files in multi-threaded java program1What is a good parallel program [with Java Thread]?0Does Java actually run threads in parallel6Basic In the code "{ exec >/dev/null; } >/dev/null" what is happening under the hood? I was declaring them in X instead of Y, causing them to be overwritten. this content Indeed, if you start each process alone (via synchronization) you get the exact same result of starting all processes together.

Now remove the threads and you have the same behavior. How can I independently grab their input streams? All Rights Reserved.

Stack Overflow Podcast #97 - Where did you get that hat?!

up vote 2 down vote favorite I have implemented a simple external process executor in Java using Runtime.exec(). Perhaps this would be better in a shell script, which calls ntpdate in the background multiple times? You'll need to do something to make sure this doesn't happen by either making sure the process does not produce output to those streams or by doing the Windows equivalent of MyStreamGobbler errorGobbler = new MyStreamGobbler(proc.getErrorStream(), StreamType.ERROR); // any output?

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