Runtime.exec error in windows
When i try to run an external program with Runtime.exec() in windows 2000, i get a windows pop-up with the following error msg:
d:\winnt\system32\ntvdm.exe
Error while setting up environment for the application.
I have no idea how to fix this since i have no clue to what that error means.
Thanks
Rumy
I've personally just encountered the same error. I am building a piece of demonstration software to distribute with my graduate school applications to demonstrate my programming experience and I wish to include a set of programs I wrote some years ago in Pascal and C++. The software has been compiled for MS-DOS 6.0. I am using the following command to execute the software from within my Java program:
Runtime.getRuntime().exec(new String[]{"command.com","/c","12cards.bat"});The batch file performs the appropriate setup operations for the program and runs the executable. When I run this code segment, I receive the following error:
[16 bit MS-DOS Subsystem]
C:\WINNT\system32\ntvdm.exe
Error while setting up environment for the application. Choose 'Close' to terminate the application.
I have another code segment in which I attempt to run the executable myself (without the help of command.com or the batch file). The code segment is as follows:
Runtime.getRuntime().exec(new String[]{"12cards.exe"}, new String[0], workingDir);When I run this code segment, the following IOException is thrown:
java.io.IOException: CreateProcess: 12CARDS.EXE error=2
at java.lang.Win32Process.create(Native Method)
at java.lang.Win32Process.<init>(Win32Process.java:66)
at java.lang.Runtime.execInternal(Native Method)
at java.lang.Runtime.exec(Runtime.java:566)
at (my code)I have already found the document on Microsoft's support website which describes a solution to this problem. Manually extracting the autoexec.nt, config.nt, and command.com files from the installation CD-ROM did not help.
The most confusing element of this: 12CARDS.EXE runs fine if I execute it from Windows Explorer. It's only a problem if it's executed from within my Java program. I have two other DOS programs which I want to include as well; I am having the same trouble with them.
Any advice will be much appreciated. Thanks!
Similar Messages
-
Runtime.exec error - java.lang.NullPointerException
Hi,
I am trying out the example code from javaWorld that shows how to use exec to execute external command. The problem is that I aways run into java.lang.NullPointerException on line that has "Process proc = rt.exec(cmd);" I have tried to run the code under Windows XP and Windows 2003; and I get the same error message. Any idea on what might be casing this?
Thanks,
// GoodWindowsExec.java
import java.util.*;
import java.io.*;
class StreamGobbler extends Thread
InputStream is;
String type;
StreamGobbler(InputStream is, String type)
this.is = is;
this.type = type;
public void run()
try
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line=null;
while ( (line = br.readLine()) != null)
System.out.println(type + ">" + line);
} catch (IOException ioe)
ioe.printStackTrace();
public class GoodWindowsExec
public static void main(String args[])
if (args.length < 1)
System.out.println("USAGE: java GoodWindowsExec <cmd>");
System.exit(1);
try
String osName = System.getProperty("os.name" );
String[] cmd = new String[3];
if( osName.equals( "Windows NT" ) )
cmd[0] = "cmd.exe" ;
cmd[1] = "/C" ;
cmd[2] = args[0];
else if( osName.equals( "Windows 95" ) )
cmd[0] = "command.com" ;
cmd[1] = "/C" ;
cmd[2] = args[0];
Runtime rt = Runtime.getRuntime();
System.out.println("Execing " + cmd[0] + " " + cmd[1]
+ " " + cmd[2]);
Process proc = rt.exec(cmd);
// any error message?
StreamGobbler errorGobbler = new
StreamGobbler(proc.getErrorStream(), "ERROR");
// any output?
StreamGobbler outputGobbler = new
StreamGobbler(proc.getInputStream(), "OUTPUT");
// kick them off
errorGobbler.start();
outputGobbler.start();
// any error???
int exitVal = proc.waitFor();
System.out.println("ExitValue: " + exitVal);
} catch (Throwable t)
t.printStackTrace();
}What is System.getProperty("os.name") returning when you run on Windows XP or 2003?
You are only filling in your cmd array when os.name is either Windows NT or Windows 95. In other cases, the elements of cmd are left as null.
The documentation for Runtime.exec() says you will get a NullPointerException when elements of the array are null:
http://apidoc.org/view/10563?a=exec%28java.lang.String%5B%5D%29 -
Runtime.exec and locked window
So I'm working in a Swing application guaranteed to run only on Windows systems using Java 1.6 u 7. The users want a help button to launch a local web browser and point to the company's web site.
After reading online and finding that getDesktop.browse() sometimes crashes in that version of Java, I use Runtime.exec("rundll ...") to kick off the local browser with the appropriate web address.
The browser comes up appropriately, but the original Swing application's mouse pointer converts to an hourglass; I can click on the original window and get results but I can't open a new window.
So I create a short thread implementing the Runnable interface and put the Runtime.exec call in that thread; I assume the problem is that the process is interfering with the GUI thread, and putting the Runtime.exec call in a separate thread will clear the problem up. It doesn't work; I still have the hourglass.
I read online that some processes require that their input and error streams be consumed, or they may block; That shouldn't be a problem with internet explorer, but I add two threads to consume those streams; still no change.
I also tried getDesktop().browse() anyway, and in a separate thread, and had the same problem.
Does anyone have any suggestions?
Respectfully,
Brian P.Okay.
First, let's look at the basic client.
As you can see, when asked to show a window,
it puts it in a separate thread for rendering:
public class Client
// Show one example method
private void showNewWindow(Window window)
ourLogger.info("New request to display window: " + window.getClass().getName());
if (window instanceof ClientWindow)
try
((ClientWindow) window).bindFrames();
((ClientWindow) window).setClient(this);
if (window instanceof ClientJDialog)
window = new ClientJDialog((ClientJDialog) window);
else
correctSize(window);
showCenter(window);
synchronized(myWindows)
myWindows.add(window);
counter = 0;
thread.hide();
catch (Exception re)
ourLogger.error("Client error while trying to show window", re);
((ClientWindow) window).unbindFrames(false);
else
throw new Error(window.getClass().getName() + " is NOT an instance of ClientWindow");
// Snip some more
At this same level on this class, I had originally put a showHelp() procedure with a single
command thus:
public void showHelp()
Desktop.getDesktop().browse(java.net.URI.create(<help web site>));
Simple, eh? But that gave me the hourglass as discussed. So I pushed it into a new thread.
It eventually mutated thus:
public void showHelp()
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
//windows only
Runtime rt = Runtime.getRuntime();
Process p = rt.exec("rundll32 url.dll,FileProtocolHandler " + "<help URL>");
StreamGobbler s1 = new StreamGobbler ("stdin", p.getInputStream ());
StreamGobbler s2 = new StreamGobbler ("stderr", p.getErrorStream ());
s1.start ();
s2.start ();
try {
p.waitFor();
} catch (java.lang.InterruptedException e) {}
So as you can see, I ditched Desktop from Runtime and added a pair of stream consumers
to ensure I wasn't having the stream problem our second poster discussed. Still no joy.
I eventually replaced the url call with an attempt to invoke a simple batch file which
did nothing, and I still had the same problem. I still have an hour glass, even when
the process has been pushed into a new thread as you can see.
Respectfully,
Brian P.
Edited by: pendell on Apr 16, 2010 3:14 PM -
Runtime.exec and dialog windows
I'm using Runtime.exec to launch an exe that may crash due to runtime errors (such as division by zero). When this appens a dialog window shows up, waiting for the user to close it. (I'm running the program under Win98). Is there a way to avoid this?
I think the only way should be fixing the exe bug!
There is no way, I suppose.
Ciao! -
Hi, I am using Runtime.exec to run an external application in Windows2000. � can read its output and i can destroy it without any problems.
But when i run my java application with javaw , the external application i run with rt.exec opens new window(without output texts, empty) . just output command windows which opens when i run the external app. from a command prompt.
If i run my java application with java.exe then then external application DO NOT open new window and run correctly. But this time my java window stays on desktop, and that's not any good for a Windows Application.
In both cases everything runs OK. The only problem is the command prompt windows.
Is there a solution when working with javaw.exe ? or hide the window when running with java.exe
Thanks all.bug with ID: 4244515
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Runtime.exec() for different Windows versions ?
Hello all.
I'm currently developing a Java program that uses Runtime.exec() to launch a MS-DOS application (the old MS-Kermit). It works fine under Windows ME and Java 1.3.1 but the very same code fails to work under Windows 2000. That's very bad for me, since my program should work on all windows platforms from 95 up to XP (and NT).
My question is : can I trust Runtime.exec() or am I damned to write different versions of the same command for different operating systems ?
Thanks.Runtime is not os independent, so yes, it has to accomodate the os differences. There is an enhancement request on the subject, tho.
Search the forums, there is code that handles the differences posted. -
Runtime.exec error on Fedora Core
Hi,
I have some difficulty using Runtime.exec method on Fedora Core.
If classpath contains "space", it cannot execute a commnad.
It works well on Windows systems with quotation marks.
Here's my code.
Proccess p = r.exec("java -classpath .:\"pkg root"\" A");
Java command regards root as a class. It is actually a half of directory name. How can I solve this problem?
thank you for reading.This setting works for me on Linux:
[ebank2@giskard ivan]$ java b
here is a - have a nice day![ebank2@giskard ivan]$ cat "a b"/a.java
public class a {
public static void main (String a[] ) {
System.out.println("here is a - have a nice day!");
}[ebank2@giskard ivan]$ cat b.java
import java.io.*;
public class b {
static String s[]={ "java" , "-classpath" , "a b" , "a" };
public static void main (String a[] ) throws Exception {
Process p = Runtime.getRuntime().exec(s);
InputStream is = p. getInputStream() ;
int c;
while((c=is.read()) != -1) System.out.print((char)c);
} -
I am getting the following exception when I try doing...
r.exec ( "cmd/c start/b notepad" );
Want to diagnose but don't see the errorcode any where documented.
thanks in advance.
java.io.IOException: CreateProcess: start dir error=2
at java.lang.Win32Process.create(Native Method)
at java.lang.Win32Process.<init>(Win32Process.java:63)
at java.lang.Runtime.execInternal(Native Method)
at java.lang.Runtime.exec(Runtime.java:566)
at java.lang.Runtime.exec(Runtime.java:428)
at java.lang.Runtime.exec(Runtime.java:364)
at java.lang.Runtime.exec(Runtime.java:326)
at com.ugsolutions.aif.installer.Installer.main(Unknown Source)hi I am having the same problem. I have a .cmd file that needs an arguement to run. The .cmd file connects to a server via PSCP. The .cmd file works properly on it's own on the commandline with an appropriate arguement, but as for using it thru the java file - it doesnt even hang, it just doesnt execute. Can anyone help me please?
Fin.
CODE:
import java.io.*;
class ExecDemo
public static void main(String[] args) throws IOException
//if( args.length < 2 )
// System.out.println( "Please specify parameters" );
//else
//System.out.println( args[0] );
//System.out.println( args[1] );
String command;
command = "/cmd -c package.cmd 331/Finbarr/*";
System.out.print( command );
Runtime rt = Runtime.getRuntime ();
try
Process rtProcess = rt.exec ( command ); //
// Print command output onto standard output
InputStream is = rtProcess.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String str;
System.out.println();
System.out.println("starting...");
int i = 0;
while ((str = br.readLine()) != null)
System.out.println(i + " " + str);
i ++;
is.close();
System.out.println("over...");
try
rtProcess.waitFor();
catch (InterruptedException ire)
ire.printStackTrace();
catch (IOException ioe)
ioe.printStackTrace();
} -
Runtime.exec() opening dos window.
I heard that in newer version of java (>java 1.2 ) if Runtime.exec() is used to execute some native program, a black dos promt is popped up automatically and closed when the execution of the native program is completed.
Will this happen every time I use Runtime.eceX()? is there a way to avoid this opening of dos prompt.It will vary by os version. Read up on the use of the command or cmd statements from the os help information, and on the os's start command (may not exist in all os's)
Experiment fron the commandline to see what happens. -
Runtime.exec work in windows but not in solaris??
hi all,
can someone tell me why the following code work in windows platform but doesnt work in solaris?The program tries to ping 127.0.0.1 and the output is correct in windows, but when i try it in solaris, it produces the following exception :
Internal error: Unexpected Java exception thrown ( unknown exception, no description ) , stack:java.lang.NoClassDefFoundError: StreamGobbler
at java.lang.Class.getDeclaredConstructors()(Native Method) ....
The code is as follow:
import java.util.*;
import javax.servlet.http.*;
import javax.servlet.*;
import java.io.*;
class StreamGobbler extends Thread
InputStream is=null;
String type=null;
PrintWriter out=null;
StreamGobbler(InputStream is,String type,PrintWriter out)
this.is=is;
this.type=type;
this.out=out;
public void run()
try
InputStreamReader isr=new InputStreamReader(is);
BufferedReader br=new BufferedReader(isr);
System.out.println("finishing inputstreamReader and BufferedReader");
String line=null;
while ( (line=br.readLine())!=null )
{ out.println(type+"> "+line);
out.println("<br>");
catch (IOException ioe)
{ ioe.printStackTrace();
public class ping extends HttpServlet
public void init(ServletConfig config) throws ServletException
{ super.init();
public void service(HttpServletRequest req,HttpServletResponse res) throws ServletException, IOException
res.setContentType("text/html");
PrintWriter out=res.getWriter();
try {
Runtime rt=Runtime.getRuntime();
System.out.println("pinging 127.0.0.1");
String[] cmd={"ping","127.0.0.1"};
Process proc=rt.exec(cmd);
System.out.println("finishing process proc=rt.exec(cmd)");
StreamGobbler errorGobbler = new StreamGobbler(proc.getErrorStream(),"ERROR",out);
StreamGobbler outputGobbler= new StreamGobbler(proc.getInputStream(),"OUTPUT",out);
errorGobbler.start();
outputGobbler.start();
int exitVal=proc.waitFor();
out.println("Process exitValue: "+exitVal);
out.close();
catch (Throwable t)
t.printStackTrace();Did you copy all the class files to your solaris machine ? SOunds like you didn't copy all your files correctly.
-
Problem with Microsoft C++ runtime library error in windows 8.1
I am getting an occasional error that is too frequent to ignore:
Microsoft Visual C++ Runtime Error
Runtime Error!
Program C:\Windows\Explore.exe
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application’s support team for more information.
I'm using windows 8.1 64-bit. i tried clean boot method..but still happening after a start .. please give a solution.Hi SubhankaR C,
I suspect this is related to application crash, can you boot into diagnostic mode to check if you still have this issue?
Meanwhile, what’s the event error in event viewer?
Alex Zhao
TechNet Community Support -
Microsoft Visual C++ Runtime Library Error on Windows 7
So I am having a problem and believe that it is Virus or malware whatever related. upon start up i get a pop up that states
"Runtime Error!
Program: C:\Program ...
This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information."
first off I don't know what application could do this. I just manually removed Spyware Clear from my pc's C: drive using dos prompting... i havent done that in YEARS!!!!! please please please someone help me. I have a lot on this computer and have been updating
it over the years... it about 5 years old now and NO I WILL NOT GET RID OF IT! at least not just yet. I really hesitant about windows 8 lol. Thanks a million!Hi Windows7grl88,
Please type: "chkdsk /r /f" At the Command Prompt.
This kind of error can be caused by Software problem, please try to Place the computer in a clean boot state, which will start Windows by using a minimal set of drivers and startup programs, and follow the steps in this article to
perform a cleanboot:
How to perform a clean boot to troubleshoot a problem in Windows Vista, Windows 7, or Windows 8
http://support.microsoft.com/kb/929135
If there is anything else regarding this issue, please feel free to post back.
Best Regards,
Anna Wang
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected] -
Runtime.exec - hidding the ugly black dos window
Hello,
Could someone tlle me how to hide the dos command which is always opened when using Runtime.exec on a windows OS?
I also know that there's already lots of questions already posted on this subject but I can't find them.. So links could help me....
LoicHere's what came up when I searched the forum using "hide runtime":
http://search.java.sun.com/Search/java?col=javafrm&qp=%2Bforum%3A31&qt=hide+runtime&x=10&y=10 -
Error in opening a file with name in chinese characters with Runtime.exec
The issue at hand is when I try to open a file with file name containing chinese characters in a localized environment in Windows through the following java code:
Runtime.exec("rundll32 SHELL32.DLL,ShellExec_RunDLL {File_With_FileName_containing_Chinese_character}");
the following error is thrown by windows.
Cannot open file "C:\??.txt".
with the exception
java.io.IOException: CreateProcess: [Ljava.lang.String;@f5da06 error=2
at java.lang.Win32Process.create(Native Method)
at java.lang.Win32Process.<init>(Win32Process.java:66)
at java.lang.Runtime.execInternal(Native Method)
at java.lang.Runtime.exec(Runtime.java:566)
at java.lang.Runtime.exec(Runtime.java:428)
at java.lang.Runtime.exec(Runtime.java:364)
at java.lang.Runtime.exec(Runtime.java:326)
at Launcher.main(Launcher.java:26)
When I try to use the same command (shown below) from the Windows Run command, the file opens sucessfully
rundll32 SHELL32.DLL,ShellExec_RunDLL {File_With_FileName_containing_Chinese_character}
Please suggest.
Thanks in advanceThis may be a file association problem. To solve that:
In Windows 7:
1. Right-click the file,
2. Select "Open With"
select [Your Program Here]
3. Check always use this program.
In Windows XP:
1. Locate the file as you have described above
2. Right click the file
3. Select Open with from the pop-up menu
4. Click Choose default program…
5. Select Excel in the Recommended Programs box
6. Check Always use the selected program to open this kind of file
7. Click on OK.
1. Make Excel not available from Office 2007 listed under Programs and Features in Control Panel.
2. Take a registry backup using the steps given here
3. In the registry editor window expand HKEY_CLASSES_ROOT and navigate to .xls right and delete it.
4. Exit Registry Editor
5. Undo Step 1 to make Excel available.
6. Restart the computer and verify it the issue is fixed.
If this answer solves your problem, please check Mark as Answered. If this answer helps, please click the Vote as Helpful button. Cheers, Shane Devenshire -
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);
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