Odd getRuntime().exec Behavior

I am calling the following:
Runtime.getRuntime().exec("C:/Progra~1/Manager/manager.exe -connect " + destinationIP + " " + AppData.networkUsername + " " + AppData.networkPassword + " PRODUCT");
The command to be run is actually a TL1 interface manager. Anyways... destinationIP, AppData.networkUsername, and AppData.networkPassword are all strings.
The program is launched properly, the destinationIP is handled properly by the launched application and the networkPassword is fine as well.
The problem is that for some odd reason AppData.networkUsername is having the working directory of my application appended to the beginning of it.
Any ideas why?

virtual_zero wrote:
I am calling the following:
Runtime.getRuntime().exec("C:/Progra~1/Manager/manager.exe -connect " + destinationIP + " " + AppData.networkUsername + " " + AppData.networkPassword + " PRODUCT");
The command to be run is actually a TL1 interface manager. Anyways... destinationIP, AppData.networkUsername, and AppData.networkPassword are all strings.
The program is launched properly, the destinationIP is handled properly by the launched application and the networkPassword is fine as well.
The problem is that for some odd reason AppData.networkUsername is having the working directory of my application appended to the beginning of it.The problem is not with runtime.Exec.
If your Java string AppData.networkUsername does not include your app's pwd at the time you make that call (which you can easily find out with a debugger or by printing it immediately before caling exec), then Runtime.exec is absolutely not passing it to manager.exe. Runtime.exec is not adding stuff to your strings. In this case, manager.exe is taking its own startup pwd (which it inherits from your Java process) and using it to turn a relative path into an absolute one.
The solution is to use the exec() signature that specifies a starting pwd for the child process, as somebody already suggested.
[http://java.sun.com/javase/6/docs/api/java/lang/Runtime.html#exec(java.lang.String[],%20java.lang.String[],%20java.io.File)]

Similar Messages

Runtime.getRuntime.exec() may hang?

Hi, I am trying to run a Microsoft application, suspend.exe, under Java, on xp. I noticed that sometimes the program would hang, after issuing the command.
String command = "cmd /c suspend.exe -n 15 -s 3 -l c:\\scpt\\s3.txt -e " ;
suspend = Runtime.getRuntime().exec (command);
Is there a compatibility between MS and Java after Java releases the control to the native environment? Has anyone seen this? Sometimes this gets kicked off, and sometimes it doesn't.
* I am really confused. Thanks for any help

thank you, I will look into this.
Btw, do you know how to start a java program at start up? I have searched and read some articles, but none seems to do the trick for me.
I have:
1) create a bat file. This bat file runs fine w/ double clicking, but when trying to place it in startup folder and run it, it quits.
2) create a simple c vesion of .exe file. This possesses the same behavior as above
3) create a short cut to the bat file and place it in startup folder. Nothing happens.
4) add reg. key in regedit with
'java Pclient'
and
'java c:\scpt\Pclient'
nothing seems to happen.
still searching...
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Inconsistent exit code from Runtime.getRuntime().exec

I'm getting non-deterministic behavior from a call to a native process. Here is the code:
public class Test {
public static void main (String[] pArgs) {
try {
String cmd[] = { "cmp", "-s",
pArgs[0],
pArgs[1] };
System.err.println("running command: ");
Process p = Runtime.getRuntime().exec(cmd);
System.err.println("getting exitcode...");
int exitcode = p.waitFor();
System.err.println(exitcode);
System.err.println(p.exitValue());
} catch(Exception e) {
System.err.println("Caught exception while executing cmd");
e.printStackTrace();
And here is the output:
bock@homeruns[~/work/index]10:08> java Test output output.old
running command:
getting exitcode...
0
0
bock@homeruns[~/work/index]10:08> java Test output output.old
running command:
getting exitcode...
1
1
bock@homeruns[~/work/index]10:08> java Test output output.old
running command:
getting exitcode...
0
0
they should all be 1's because the files are different. when i run it on the command line i get:
bock@homeruns[~/work/index]10:13> cmp -s output output.old ; echo $?
1
any help would definitely be appreciated!
thanks,
roger

thanks for the link. i read through it but it doesn't seem to address why the exit code would be inconsistently reported. the other problems described by that link don't seem to apply to this case because i have not experienced hanging and there is no standard input, standard output, or standard error associated with "cmp -s" - all it does is return the appropriate exit code.
should i be reporting this as a bug to sun? up till recently i've been assuming it was a problem with my code but now i'm not so sure...

Using getRuntime().exec() with Serlvet to run applications in Solaris

I am currently doing a project which requires the execution of Solaris applications through the use of Java Servlet with this Runtime method - Runtime.getRuntime.exec()
This means that if the client PC tries to access the servlet in the server PC, an application is supposed to be executed and launched on the server PC itself. Actually, the servlet part is not an issue as the main problem is the executing of applications in different platforms which is a big headache.
When I tried running this program on a Windows 2000 machine, it works perfectly fine. However, when I tried it on a Solaris machine, nothing happens. And I mean nothing... no errors, no nothing. I really don't know what's wrong.
Here's the code.
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
response.setContentType("text/html");
PrintWriter out = response.getWriter();
Process process; Runtime runtime = Runtime.getRuntime();
String com= "sh /opt/home/acrobat/";
String program = request.getParameter("program");
try
process = runtime.exec(com);
catch (Exception e)
out.println(e);
It works under Windows when com = "c:\winnt\system32\notepad.exe"
When under Solaris, I have tried everything possible. For example, the launching of the application acrobat.
com = "/opt/home/acrobat"
com = "sh /opt/home/acrobat"I have also tried reading in the process and then printing it out. It doesn't work either. It only works when excuting commands like 'ls'
BufferedReader read = new BufferedReader(new InputStreamReader(process.getInputStream()));Why is it such a breeze to execute prgrams under Windows while there are so many problems under Solaris.
Can some experts please please PLEASE point out the errors and give me some advice and help to make this program work under Solaris! Please... I really need to do this!!
My email address - [email protected]
I appreciate it.
By the way, I'm coding and compiling in a Windows 2000 machine before ftp'ing the .class file to the Solaris server machine to run.

Hi!
I'm no expert, but I think I remember doing something similar a few months ago, and I think the problem was that the UNIX server does not know which shell to use. The solution was this:
Create a script that starts the program on the server, and be sure to include a first row saying:
#!/bin/ksh
to specify which shell to use (in this case Korn shell). Then call the script from Runtime.getRuntime().exec()

How to execute an application in Solaris using Runtime.getRuntime.exec() ?

I am currently doing a project which requires the execution of Solaris applications through the use of Java Servlet with this Runtime method - Runtime.getRuntime.exec()
This means that if the client PC tries to access the servlet in the server PC, an application is supposed to be executed and launched on the server PC itself. Actually, the servlet part is not an issue as the main problem is the executing of applications in different platforms which is a big headache.
When I tried running this program on a Windows 2000 machine, it works perfectly fine. However, when I tried it on a Solaris machine, nothing happens. And I mean nothing... no errors, no nothing. I really don't know what's wrong.
Here's the code.
public void doPost(HttpServletRequest request, HttpServletResponse response)
     throws ServletException, IOException
     response.setContentType("text/html");
     PrintWriter out = response.getWriter();
          Process process;                                                       Runtime runtime = Runtime.getRuntime();
          String com= "sh /opt/home/acrobat/";
          String program = request.getParameter("program");
          try
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          catch (Exception e)
               out.println(e);
It works under Windows when com = "c:\winnt\system32\notepad.exe"
When under Solaris, I have tried everything possible. For example, the launching of the application acrobat.
com = "/opt/home/acrobat"
com = "sh /opt/home/acrobat"I have also tried reading in the process and then printing it out. It doesn't work either. It only works when excuting commands like 'ls'
BufferedReader read = new BufferedReader(new InputStreamReader(process.getInputStream()));Why is it such a breeze to execute prgrams under Windows while there are so many problems under Solaris.
Can some experts please please PLEASE point out the errors and give me some advice and help to make this program work under Solaris! Please... I really need to do this!!
My email address - [email protected]
I appreciate it.
By the way, I'm coding and compiling in a Windows 2000 machine before ftp'ing the .class file to the Solaris server machine to run.

it is possible that you are trying to run a program that is going to display a window on an X server, but you have not specified a display. You specifiy a display by setting the DISPLAY environment variable eg.
setenv DISPLAY 10.0.0.1:0
To check that runtime.exec is working you should try to run a program that does not reqire access to an X Server. Try something like
cmd = "sh -c 'ls -l > ~/testlist.lst'";
alternatively try this
cmd = "sh -c 'export DISPLAY=127.0.0.1:0;xterm '"
you will also need to permit access to the X server using the xhost + command

How to get return value from Java runtime.getRuntime.exec?

I'm running shell commands from an Oracle db (11gr2) on aix.
But, I would like to get a return value from a shell comand... like you get with "echo $?"
I use a code like
CREATE OR REPLACE JAVA SOURCE NAMED common."Host" AS
import java.io.*;
public class Host {
public static int executeCommand(String command) {
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        finalCommand[0] = "/bin/sh";
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/but I do not get a return value... because I don't know how to get return value..
Edited by: user9158455 on 22-Sep-2010 07:33

Hi,
Have your tried pr.exitValue() ?
I think you also need a finally block that destroys the subprocess
Regards
Peter

Strange behaviour of Runtime.getRuntime().exec(command)

hello guys,
i wrote a program which executes some commands in commandline (actually tried multiple stuff.)
what did i try?
open "cmd.exe" manually (administrator)
type "echo %PROCESSOR_ARCHITECTURE%" and hit enter, which returns me
"AMD64"
type "java -version" and hit enter, which returns me:
"java version "1.6.0_10-beta"
Java(TM) SE Runtime Environment (build 1.6.0_10-beta-b25)
Java HotSpot(TM) 64-Bit Server VM (build 11.0-b12, mixed mode)"
type "reg query "HKLM\SOFTWARE\7-zip"" returns me:
HKEY_LOCAL_MACHINE\SOFTWARE\7-zip
Path REG_SZ C:\Program Files\7-Zip\
i wrote two functions to execute an command
1) simply calls exec and reads errin and stdout from the process started:
public static String execute(String command) {
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               in = child.getErrorStream();
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public static String exec(String[] commands) {
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               while ((line = brCleanUp.readLine()) != null) {
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     }so i try to execute the commands from above (yes, i am using \\ and \" in java)
(1) "echo %PROCESSOR_ARCHITECTURE%"
(2) "java -version"
(3) "reg query "HKLM\SOFTWARE\7-zip""
the first function returns me (note that ALL results are different from the stuff above!):
(1) "" <-- empty ?!
(2) java version "1.6.0_11"
Java(TM) SE Runtime Environment (build 1.6.0_11-b03)
Java HotSpot(TM) Client VM (build 11.0-b16, mixed mode, sharing)
(3) ERROR: The system was unable to find the specified registry key or value.
the second function returns me:
(1) x86 <-- huh? i have AMD64
(2) java version "1.6.0_11"
Java(TM) SE Runtime Environment (build 1.6.0_11-b03)
Java HotSpot(TM) Client VM (build 11.0-b16, mixed mode, sharing)
(3) ERROR: The system was unable to find the specified registry key or value.
horray! in this version the java version is correct! processor architecture is not empty but totally incorrect and the reg query is still err.
any help is wellcome
note: i only put stuff here, which returns me strange behaviour, most things are working correct with my functions (using the Runtime.getRuntime().exec(command); code)
note2: "reg query "HKLM\HARDWARE\DESCRIPTION\System\CentralProcessor\0" /t REG_SZ" IS working, so why are "some" queries result in ERR, while they are working if typed by hand in cmd.exe?

ok, i exported a jar file and execute it from cmd:
java -jar myjar.jar
now the output is:
(1) "" if called by version 1, possible to retrieve by version 2 (no clue why!)
(2) "java version "1.6.0_10-beta"
Java(TM) SE Runtime Environment (build 1.6.0_10-beta-b25)
Java HotSpot(TM) 64-Bit Server VM (build 11.0-b12, mixed mode)"
(3) C:\Program Files\7-Zip\
so all three problems are gone! (but its a hard way, as i need both functions and parse a lot of text... :/ )
thanks for the tip, that eclipse changes variables (i really did not knew this one...)

Runtime.getRuntime.exec() not working when Tomcat is made a windows Sevice

Hi,
I am working on a web application which launches a exe file on subitting the form. I am using Apache Tomcat 4.0.6 to run the web application. Initially Tomcat was not made a windows service on my machine and when I launch an exe it is launching without any problems. I used the following command to launch the exe file:
<code>
Process p = Runtime.getRuntime().exec("C:\\Program Files\\Mercury Interactive\\WinRunner\\arch\\wrun.exe" + strWROptions);
</code>
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Thanks,
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The version of Java I am using is 1.4.2. Even without
using the string array as you mentioned, the exe
(wrun.exe) is launched on my desktop if I don't run
Tomcat as a windows service. But the problem arises on
making it a service :-(
That is strange because going by the documentation what you have been using should never work. I can't test it though, I'm not on MSWindows at the moment..
Now, when I use this string array convention, I am
getting an error saying "The tool could not launch..
some error occured".
That's not a Java error message, it must come from WinRunner. This means that you have succesfully started WinRunner (great!) but something else is wrong; maybe the parameters you pass to it are incorrect.
How would you run it on the command line? Like this?wrun -t "D:\L5_QE\L5A\Initial" -create_text_report on -runThat line executes the wrun program and passes it five parameters, not three. The first parameter is "-t", the second "D:\L5_QE\L5A\Initial", the third "-create_text_report", the fourth "on", and the fifth "-run". The array of strings that corresponds to that line isString[] command = {"C:\\Program Files\\Mercury Interactive\\WinRunner\\arch\\wrun.exe",
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PROBLEM in executing a shell command through Runtime.getRuntime().exec()

Hi all,
I was trying to execute the following code:
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.Statement;
import java.sql.ResultSet;
* Created on Mar 13, 2007
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
* @author 195092
* To change the template for this generated type comment go to
* Window>Preferences>Java>Code Generation>Code and Comments
public class ClassReportDeleteDaemon {
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}     //end of ClassReportDeleteDaemon
But it is giving the error "BAD OPTION -print|xargs". The command run well in shell.
Please help.
Thanking u.......

Since the pipe '|' is interpreted by the shell then you need the shell to invoke your command
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You should also read http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html at least twice and implement the recommendation regarding stdout and stderr.
P.S. Why are you not using Java to find and delete these files?
Message was edited by:
sabre150

Running curl command from a java program using Runtime.getRuntime.exec

for some reason my curl command does not run when I run it from within my java program and errors out with "https protocol not supported". This same curl command however runs fine from any directory on my red hat linux system.
To debug the problem, I printed my curl command from the java program before calling Runtime.getRuntime.exec command and then used this o/p to run from the command line and it runs fine.
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thanks a lot for your response. The reason why I am using curl is because I need to use certificates and keys to gain access to the internal server. So I use curl "<url> --cert <path to the certificate>" --key "<path to the key>". If you don't mid could you please tell me which version of curl you are using.
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Below is the code which errors out.
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Odd Calc Order Behavior

Hello all,
I've put together a hybrid analysis cube and I'm experiencing some odd calc order behavior. It appears the years are calculating backwards.
I load my 2007 end balances and calc forward three years. 2008 is correct, but 2009 and 2010 are incorrect. They are incorrect inasmuch as the calcs that require 2008/2009 end balances are incorrect. So I run the script again and now 2009 is right, but 2010 is incorrect. Then I run it once more and 2010 is correct.
It appears the end balances for 2008 and 2009 aren't available for 2009 and 2010, respectively. Thus, I think 2010 is calcing first, but with no 2009 end bals, so it's off. Then 2009 goes, again no end bals, so it's off. Then 2008 calcs, and since 2007 end bals are in there, it's calcing correctly. Thus, I have to calc again two times for 2009 and 2010 to be correct.
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Fix (@IRSiblings("2008"),"ScenarioMbr")
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Endfix
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I would suggest checking on your outline order. It sounds like your ending balance hasn't been calculated by the time the beginning balance needs it (as evidenced by your three passes). The order of members in your FIX statement has no bearing on the calculation order. By this, I mean make sure that your Years dimension is ordered as follows...
Years
+ 2007
+ 2008
+ 2009
+ 2010
Also, make sure that your periods (where your months are is, assuming it is a different dimension) is located above your Years dimension.
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IF this doesn't help, maybe provide one of the BegBal members that isn't working, your outline order, the order of the Years dimension, and the dense/sparse settings (assuming BSO).
Good Luck!!

Odd Junk Mail Behavior

I've been experiencing odd Junk Mail behavior on my Mac; I've got the Mail app set so it puts the emails it thinks is Junk in the Junk folder. I do this because I've noticed that certain legitimate emails keep ending up in the Junk folder automatically.
I've also noticed that some of the emails in the Junk folder have not actually been flagged as Junk Mail, they were not colored brown by the Junk Mail rule and there is no button available to tell Mail it's not Junk. How do I stop Mail from flagging something as Junk when it doesn't seem to tag it as Junk but it still ends up in the Junk folder?
I see emails tagged as Junk in the Junk folder that are legit, so I click the "Not Junk" button and move them back to the proper mail folder. But the next time I get mail from the same source, it gets flagged and tagged as Junk again. I thought the Mail app learns from the training we give it. How do I resolve this situation?
I've already set the Junk filtering to not filter emails from recipients who are in my Address Book.

Either you’ve messed with the Preferences > Junk Mail > Advanced settings, or those settings have become corrupt, or you have one or more rules that have a bearing on this.
Assuming it isn’t the latter, try this:
1. Go to Preferences > Junk Mail, disable junk mail filtering, then enable it again. This resets the rule that governs what the junk filter does.
2. Choose either Training or Automatic mode (it doesn’t matter) and leave the other options checked. Click Advanced to see how the junk filter rule is defined now if you want, but don’t touch anything there.
3. Reset the junk filter database (Preferences > Junk Mail > Reset).

How to use Runtime.getRuntime().exec() in JSP? is it works in JSP or not

Hi to all,
i want run a .exe file from JSP file. In java i am able do this, using Runtime.getRuntime().exec().
but same thing, when i trying with JSP it is not working?
plz let me is there any other ways to do it..

It depends, usually (ie in an J2EE container) you're not allowed to access files or the runtime environment, by definition. What do you wan't to achieve with the exe?
--olaf

Runtime.getRuntime().exec and quoted strings?

Attempting to execute a command containing a quoted string. Being very new to Java I'm guessing I'm not doing it right. Below are two code bits the first one works the second doesn't. So the question is "How do I use quoted strings in a command with .exec?"
// this one works
try {
p = Runtime.getRuntime().exec("ls -l tst.java");
p.waitFor();
System.out.println("Done!");
catch(Throwable e) {
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// this one fails
try {
p = Runtime.getRuntime().exec("ls -l \"tst.java\"");
p.waitFor();
System.out.println("Done!");
catch(Throwable e) {
system.out.println("Errors!");

I don't know if it is too late for the answer, but I think I know what the problem is.
You are using exec(String) method, and passed String parameter is parsed using StringTokenizer class. This means that when you use quotes as in "file1 file2", StringTokenizer parses this as "file1 and then file2" so it is not understandable command.
To solve the problem, do not use exec(String) method, use exec(String[])
Using this you can send separate command and separate parameters as in following example:
If you want to send (in Unix)
grep "SHOW lotid" text.txt
(using exec("grep \"SHOW lotid\" text.txt") would not work)
Do the following
exec(new String[]{"grep", "SHOW lotid", "text.txt"});
This avoids parsing problem when quotes are used.
Mehmed

GetRuntime().exec("chmod 777 a file.txt") - does not do the intended task

Hi,
I am trying to change the permissions of file (file name has spaces) using the Runtime.getRuntime().exec() method on AIX platform. My sample code is -
import java.io.*;
public class ChangeMode
     public static void main(String[] args)
          Process p = null;
     String cmd = null;
          cmd = "chmod " + "000" + " " + "a file.txt";
          try
          p = Runtime.getRuntime().exec( cmd );
          p.waitFor();
          catch( Exception e )
          e.printStackTrace();
          System.out.println("The exit value "+p.exitValue());
In this case - I am getting exitValue of 2.
But, the strange part is that - I am able to run the command
"chmod 000 a file.txt "
from the command prompt successfully.
Any ideas what does an exitValue of 2 means and where is this program getting failed.
Thanks!
~Saurabh

Is 'a file.txt' the file name ?
If I'm right, the Runtime.exec(String cmd) method will split the given string (using spaces.)
The first token will be used a the command and the other ones as the arguments.
In your example it will call chmod with three arguments: 000, a and file.txt
In order to avoid that, you should either use the Runtime.exec(String[] cmd) method with: String[] cmd = new String[] {"chmod", "000", "a file.txt"};or try to put your file between ticks: String cmd = "chmod 000 'a file.txt'";You could have a look at this article to learn more about Runtime.exec() :
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html
I hope it will help.

Odd getRuntime().exec Behavior

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