Executing Windows shortcuts through getRuntime.exec

Hello,
I am writing a desktop component in which you should be able to drag and drop local windows icons and they will become an icon on my desktop.
I am able to get the shortcut .lnk location by accessing the list flavor from the native drag and drop... for example if i drop a native shortcut i get:
C:\Documents and Settings\pankaj\Desktop\Shortcut to eclipse.lnk
i can even access the file system icon by:
ImageIcon iconImage = (ImageIcon)FileSystemView.getFileSystemView().getSystemIcon(execFile);
iconImage.setImage(iconImage.getImage().getScaledInstance(32,32,Image.SCALE_AREA_AVERAGING));
but i tried to execute the .lnk command using getRuntime.exec(cmd); it didnt work obviously.. how can make this work?
you can check out info on my project here:
http://www-unix.globus.org/cog/wiki/moin.cgi/JavaCogDesktop
thanks.
pankaj

Did you try "start"?
new String [] { "cmd" , "/c", "start" , "path-to-my-shortcut" }

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Launching windowed program from getRuntime().exec( )

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Services in Windows must not have a user interface.
If I remember correctly, there are special loopholes that (native) Windows services go through to get at least some user interaction, but by default you can't interact with the user via the UI at all.
This seems to go for applications started from services as well.
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Unable to execute Runtime.getRuntime().exec(

Hello,
I am new to Java programming and trying to execute (OS is Linux) an external jar File with the command:
Runtime.getRuntime().exec("nohup java -jar SeismicAgents.jar &");It should start the SeismicAgents.jar and write the output to nohup.out.
This works perfectly if I just enter the command at the command line.
But upon starting it from within my program, the process seems to be started (I can see it when executin "ps aux"), but it is obviously not running as no input is written to nohup.out and the file which SeismicAgents.jar should generate is not generated.
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Runtime.getRuntime().exec("nohup java -jar
SeismicAgents.jar &");Java does not interprete the '&' character. Neither does
nohup. You would have to prefix this with /bin/sh -c, put
the rest in quotes and, most importantly, redirect input
and output somewhere. Without redirection, it is the task
of your java program to feed the subprocess with input
and drain its stdout and stderr buffers.
Executing something like
Runtime.getRuntime().exec(ls);works without problems...It is hard to believe this. Either it should be "ls" or
ls is string variable containing the relevant string,
but even then I would be surprised if you see any
output on the command line. At least I don't get
anything with public class bla {
public static void main(String[] argv) throws Exception {
Runtime.getRuntime().exec("ls");
}If you don't want a "/bin/sh -c" hack, you may want to
try http://www.ebi.ac.uk/~kirsch/monq-doc/monq/stuff/Exec.html .
Harald.

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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               Class.forName("oracle.jdbc.driver.OracleDriver");
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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
        String[] command = {"sh","-c","find /tmp/reports1 -name " + "\"" + "*" + "\"" + " -mtime +" + strdaysback + " -print|xargs rm -r"};
        final Process process = Runtime.getRuntime().exec(command);
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

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
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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 '"
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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>
The above command launches WinRunner on the local machine.
without using tomcat if I just compile and run a test program with this command, the exe is launching perfectly. But, Once I made tomcat a windows service on my machine the exe is not launching.
Also, a process is being created in the windows task bar named wrun.exe once I submit the form but WinRunner is not lauching on the desktop.
Can any one please help and suggest me.
Thanks,
Ramesh

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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SWT window disappear while running Runtime.getRuntime().exec()

Hello,
I have create a SWT application. I am executing the folloiwng code from my SWT application.
Process process = Runtime.getRuntime().exec(param);
BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
String line = null;
while ((line = in.readLine()) != null) {
During execution of the above code when click on other icon of the window task bar and click back on SWT window Icon, The windows open but it does not show annything until the code execution finish. any help would be apprecited.

This isn't an SWT forum. In the future, please post such questions on a forum specifically for SWT issues.
But to answer your question, there's a 99.9% chance this is because you're launching the process on SWT's UI thread. Similar to performing long-running tasks on Swing's EDT, this is a no-no. The SWT UI won't be able to repaint itself until after your process has finished. To remedy this, launch your process in a separate Thread.

Runtime.getRuntime().exec() error message "cannot execute"

I'm trying to start another program written in c++ with the commands:
p=Runtime.getRuntime().exec("nameofmyprogram");
it works with other programs written in java, and also with ordinary unixcommands like "ls" etc. but when I try to start the c++-one I get the message: cannot execute.
I can start the program directly from the terminal window, so it's ok.
does anybody have any idea of what I'm doing wrong?
( my friend claims that it has to have a name ending with .exe, is that true?)
grateful for advice!

My first guess would be that the program is not on the path and Java cannot find the executable, ls on the other hand is on the path..
I'm assuming that you are running on a unix system as you are using ls, so in this case your program does not need to end in exe, this is a windows thing. If your C++ program compiled on windows it would end in exe, but this is not the case on unix systems.
I would suggest you try either giving the exec method ./nameofmyprogram assuming java is working in the directory your compiled c++ program. The other is to give the exact location.

Problems with Runtime.getRuntime().exec in Windows 2000

Hello,
I have a batch file that I want to run from my java application. My code is the following:
try {
Runtime.getRuntime().exec("cmd.exe /c C:\\temp\\shortcut.bat");
} catch (Exception e) {
System.out.println(e.getMessage());
}I was developing on windows XP and it worked just fine. But then I tested it on windows 2000 and it didn't work. The batch file is okay, because if I run the batch file myself it works just fine, even from the command line. I get no errors what so ever, it just doesn't do anything...
Can somebody help me with this?
thx in advance

thank you all so much
I figured it out... It was a combination of two things that went wrong.
First one: in my batch file I had:
cd C:\tempwhich worsk fine in XP, but in it doesn't in 2000. In 2000 it has to be:
C:
cd \temp But just changing that wasn't enough, I also needed the "start"
Now it works just fine on 2000, hopefully it'll still work on xp as well.
THX!

Runtime.getRuntime().exec works on windows failed on linux!

Hi,
I'm trying to execute a linux command from java 1.4.2 using Runtime.getRuntime().exec(). The linux command produces output and write to a file in my home dir. The command runs interactively in the shell and also run on windows.
The command is actually a mozilla pk12util. My java code to run this pk12util works on windows, but not on linux (fedora). When I print out the command I'm trying to run in java, I can run it interactively in bash shell.
Method below is where the problem seems to be:
public void writeCert() {
// Declaring variables
System.out.println("Entering writeCert method");
String command = null;
certFile = new File(credFileName);
// building the command for either Linux or Windows
if (System.getProperty("os.name").equals("Linux")) {
command = linuxPathPrefix + File.separator + "pk12util -o "
+ credFileName + " -n \"" + nickName + "\" -d "
+ dbDirectory + " -K " + slotpw + " -w " + slotpw + " -W "
+ pk12pw;
System.out.println("System type is linux.");
System.out.println("Command is: " + command);
if (System.getProperty("os.name").indexOf("Windows") != -1) {
// command = pk12utilLoc + File.separator + "pk12util -o
// "+credFileName+" -n "\"+nickname+\"" -d \""+dbDirectory+"\" -K
// "+pk12pw+" -w "+pk12pw+" -W "+pk12pw;
command = pk12utilLoc + File.separator + "pk12util.exe -o "
+ credFileName + " -n \"" + nickName + "\" -d "
+ dbDirectory + " -K " + slotpw + " -w " + slotpw + " -W "
+ pk12pw;
System.out.println("System type is windows.");
System.out.println("Command is: " + command);
// If the system is neither Linux or Windows, throw exception
if (command == null) {
System.out.println("command equals null");
try {
throw new Exception("Can't identify OS");
} catch (Exception e) {
System.out.println(e.getMessage());
e.printStackTrace();
// Having built the command, running it with Runtime.exec
File f = new File(credFileName);
// setting up process, getting readers and writers
Process extraction = null;
BufferedOutputStream writeCred = null;
// executing command - note -o option does not create output
// file, or write anything to it, for Linux
try {
extraction = Runtime.getRuntime().exec(command);
} catch (IOException e) {
System.out.println(e.getMessage());
e.printStackTrace();
// Dealing with the the output of the command; think -o
// option in command should just write the credential but dealing with output anyway
BufferedWriter CredentialOut = null;
OutputStream line;
try {
CredentialOut = new BufferedWriter (
new OutputStreamWriter(
new FileOutputStream(credFileName)));
catch (FileNotFoundException e) {
System.out.println(e.getMessage());
e.printStackTrace();
// writing out the output; currently having problems because I am trying to run
}

My error is due to the nickname "-n <nickname" parameter error. I think the problem is having a double quotes around my nickname, but if I take out the double quotes around my nickname "Jana Test's ID" won't work either because there are spaces between the String. Error below:
Command is: /usr/bin/pk12util -o jtest.p12 -n "Jana Test's Development ID" -d /home/jnguyen/.mozilla/firefox/zdpsq44v.default -K test123 -w test123 -W test123
Read from standard outputStreamjava.io.PrintStream@19821f
Read from error stream: "pk12util: find user certs from nickname failed: security library: bad database."
null
java.lang.NullPointerException
at ExtractCert.writeCert(ExtractCert.java:260)
at ExtractCert.main(ExtractCert.java:302)
Code is:
private String nickName = null;
private void setNickname(String nicknameIn) {
nickName = nicknameIn;
// building the command for either Linux or Windows
if (System.getProperty("os.name").equals("Linux")) {
command = linuxPathPrefix + File.separator + "pk12util -o " + credFileName + " -n \"" + nickName + "\" -d " + dbDirectory + " -K " + slotpw + " -w " + slotpw + " -W " + pk12pw;
System.out.println("System type is linux.");
System.out.println("Command is: " + command);
extraction = Runtime.getRuntime().exec(command);
BufferedReader br = new BufferedReader(
new
InputStreamReader(extraction.getErrorStream()));
PrintStream p = new PrintStream(extraction.getOutputStream());
System.out.println("Read from standard outputStream" + p);

Runtime.getRuntime().exec() and waitFor on Windows

Hi,
I'm trying to execute a command on Windows 2000 using Runtime.getRuntime().exec(). After that I make a call to waitFor method of the returned process instance. The wait for call blocks and never releases. I'm trying to do simple things, like a call to "cmd /c dir", using commands that I know that work and do release after that. I need to wait for the command terminating to get the output just after that.
Thanks in advance,
Marcio Azevedo.

It's too bad ignoring the streams couldn't be build into ProcessBuilder. Instead you could do it yourself and extend ProcessBuilder like:
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private boolean ignoreInputStream;
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public ProcessBuilder ignoreInputStream(boolean ignoreInputStream) {
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Displaying getRuntime().exec() Process CMD Window

Hello,
I'm using Runtime.exec() to run some Windows XP SP2 command line arguments from the command prompt, namely, an ftp client. The code looks something like:
Process p = Runtime.getRuntime().exec("cmd /c \"cd this && that.bat -script script.txt\"");
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How can I achieve this?

Now, this works, but I want the command prompt window
to pop-up, so that the user can see the process
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Using Runtime.getRuntime().exec(DOS Program) with Windows 2000.

I am trying to spawn a DOS Program from within Java.
On Win95/98/ME, I use
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This works on these platforms. On Win 2000, I use
Process     p = Runtime.getRuntime().exec("START /w cmd.exe con /c myDOSProgram.exe");
It does not work at all.
I have tried all combinations of using START, cmd.exe, con /c, etc.
I can spawn a Windows App using
Process     p = Runtime.getRuntime().exec("windows.exe");
And it works fine.
What does it take to spawn a DOS program from Java on the Windows 2000 op sys?

Hi. I recently wrote a java GUI that calls a DOS program with mixed success. Here's the code I used to make the call:String osName = System.getProperty("os.name" );
String[] cmd = new String[4];
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else if( osName.equals( "Windows 95" ) || osName.equals( "Windows 98" ) )
     cmd[0] = "command.com" ;
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else
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Process proc = runtime.exec(cmd);Check out this article, it gives a good explanation of how to use the exec() call:
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html
Hope this helps!

Runtime.getRuntime.exec() not working with through Servlet

Hi ,
I want to open a IE from servlet,I am using a Runtime.getRuntime.exec to open the browser ,but my servlet is executing but IE is not opening...Here i am using TomcatServer...Is any settings to be Done in TomcatServer.
My Servlet code is
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
     String s1 = "C:/Program Files/Internet Explorer/IEXPLORE.EXE";
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i know it is contrary to the purpose servlets are meant for.but i am using for different purpose..
help me on this one...
Thanks in Advance

No, I am using the right path, I am sure. Also I tried giving the absolute path of the UserGuide.pdf. Still it cannot find. Please anyone try spawning an application from a different directory and lemme know your openion.
Regards,
Thomas.

Opening a new browser using Runtime.getRuntime().exec(cmd); under windows

Can Runtime.getRuntime().exec(cmd); open a URL in to a new browser in wondows OS or ...can we force it to any specific browser insted on OS's default browser...
It does open a new bowser under MAC but not under windows..
cmd = "'rundll32 url.dll,FileProtocolHandler"+URL (windows)
Thanks

public class WindowsProcess
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}When you run the above code you should get two open dos windows.
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Thats also what should happen if you specify the html file as the fourth parameter. A new process should be created and two separate windows should open with a browser in each.

Executing Windows shortcuts through getRuntime.exec

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