Using Runtime.exec( "regedit") does not prompt Vista to display UAC dialog

When I run the following code in Vista (with User Access Control turned on) from within my IDE (IntelliJ 5.x) under Java 1.5.0_11:
Runtime.getRuntime().exec( "regedit ..." )
Vista appropriately displays the UAC confirmation box to verify that it is okay to modify the registry.
However, when I run the same code with the same jre from the command line via an executable jar, it simply fails without ever displaying the confirmation pop up.
Any ideas why? And any possible resolution?

The solution was to invoke the command prompt explicitly.
*Runtime.getRuntime().exec( new String[]{ "cmd.exe", "/c", <command> } )*
There is a bug in Vista:
[http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6410605|http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6410605]
Hope this helps people who have this problem in the future.

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Issue using Runtime.exec() in Vista

I've coded a simple method using Runtime.exec() to get the client MAC ID , and it worked alright on XP. Now my client want to switch to vista , and the method is not working. Here's my code
import java.io.*;
import java.util.regex.*;
public class GetMac
     public static String getMacAddress()
          String mac="";
          System.out.println("getMacAddress");
          try {
               RunTimeExecutor re=new RunTimeExecutor("ipconfig /all");
                mac=re.executeAndReturnMac();
                re.destroy();
          } catch (Exception e) {
               e.printStackTrace();
          return mac;
import java.io.IOException;
import java.io.InputStream;
* @author amal
public class RunTimeExecutor
          String cmd;
          Process proc;
           * @param cmd
          public RunTimeExecutor(String cmd)
                    this.cmd=cmd;
           * @return boolean
           * @throws WIException
          public String executeAndReturnMac() throws Exception
               System.out.println("run");
               String mac="";
                    if(cmd==null)
                              throw new Exception("No Commands");
                    try
                          final Runtime rt = Runtime.getRuntime();
                          proc = rt.exec(cmd);
                          final StreamGobbler errorGobbler = new StreamGobbler(proc.getErrorStream());
                          InputStream iis=proc.getInputStream();
                          final StreamGobbler outputGobbler = new StreamGobbler(iis);
                          errorGobbler.start();
                          outputGobbler.start();
                          int exit=proc.waitFor();
                          System.out.println("exitVAl "+exit);
                          if(exit==0)
                               mac=outputGobbler.MAC;
                          return (exit==0) ? mac :null;
                catch (IOException e)
                          e.printStackTrace();
                catch (InterruptedException e)
                          e.printStackTrace();
                catch(Exception e)
                     e.printStackTrace();
                return null;
          public void destroy()
                    if(proc!=null )
                              proc.destroy();
* @author amal
import java.io.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
* @author amal
public class StreamGobbler extends Thread
    InputStream is;
    OutputStream os;
    public String MAC;
    StreamGobbler(InputStream is)
        this(is,null);
    StreamGobbler(InputStream is,OutputStream redirectTo)
        this.is = is;
        this.os = redirectTo;
     * @see java.lang.Thread#run()
    public void run()
        try
            PrintWriter pw = null;
            if (os != null)
                pw = new PrintWriter(os);
            InputStreamReader isr = new InputStreamReader(is);
            int c=0;
            BufferedReader br = new BufferedReader(isr);
            String line=null;
System.out.println("Start Reading");
                 while ( (line = br.readLine()) != null)
                      System.out.println(line);
                     if (pw != null)
                         pw.println(line);
                     Pattern p = Pattern.compile(".*Physical Address.*: (.*)");
                        Matcher m = p.matcher(line);
                        if (m.matches())
                             MAC = m.group(1);
                             System.out.println("seting MAC to "+MAC);
                             break;
            if (pw != null)
                pw.flush();
        } catch (Exception e)
            e.printStackTrace();
}The inputStream of the process doesnt get printed at all , the loop condition in StreamGobbler 'while ( (line = br.readLine()) != null)
' is never true.
Also , in random cases i've seen the System.out.println("exitVAl "+exit); line executing before the System.out.println("Start Reading"); line , and i though proc.waitFor() would guarentee otherwise.

thx guys for ur replies . The issue was because of some browser security system ( or so they said . ).However i'm still puzzled about the 'waiting for the stream to finish' part .
paul.miner wrote:
{I think the process is allowed to end with output still in the >>buffers, ..so this would be expected. You should be waiting for >>your .streams to finish, since that's what you really >>care .about. .Also, .you need to add synchronization between your >>threads so you can accurately retrieve "MAC". Also, do not break out >>of the loop when you find what you're looking for, you should >>continue .reading until the end of the stream.Wasn't I suppose to be reading out of the stream to prevent an overflow?Also the break is done there are multiple lines like 'Physical address .....: xxxxxxxxxx ' in the output , and the macid is the first one.About the ProcessBuilder , I'll look into it . Thx for your advice.

IOException File not found - While using Runtime.exec

Hey All,
I have written a Java application which needs to start up another external application. I have executables for that external application for different platforms (Win32, PPC and Linux). When the Java application is started it detects the OS and starts up the right executable according to the OS. The executable loads up fine on Windows without any problems. But in both Linux and Max OS X I get this exception:
java.io.IOException: java.io.IOException: "/home/vilas/Documents/Project/build/CLISP/linux/lisp.run": not found
        at java.lang.UNIXProcess.<init>(UNIXProcess.java:143)
        at java.lang.Runtime.execInternal(Native Method)
        at java.lang.Runtime.exec(Runtime.java:566)
        at java.lang.Runtime.exec(Runtime.java:428)
        at jplan.communication.lispserver.LispServer.startupServer(LispServer.java:143)
        at jplan.communication.lispserver.LispServer.run(LispServer.java:109)
        at java.lang.Thread.run(Thread.java:534)lisp.run has all the necessary permissions. If I copy the string (/home/vilas/Documents/Project/build/CLISP/linux/lisp.run) and paste it in a terminal and press enter, the application starts up fine without any problems!! Can you please tell me what could be going wrong?
The following extra information maybe helpfull:
1) I use the exec(String command, String[] envp, File dir) version of exec.
2) The complete format of the command is as follows (one long string):
"/home/vilas/Documents/Project/build/CLISP/linux/lisp.run" -B "/home/vilas/Documents/Project/build/CLISP/linux" -M "/home/vilas/Documents/Project/build/CLISP/linux/lispinit.mem" -i loader.lisp
Thanks in advance for your time and efforts.

I found the problem after extensively searing the forums (looking upto page 4 !! of the results). The problem was that I was using quotes to surround the paths in the command. If you copy and paste it in a terminal it will work fine but it does not work with runtime.exec. I am not sure, but I think the reason is that when a terminal is used, some pre-processing of the commands take place before they are passed onto the OS(shell). But while using runtime.exec, that pre-processing is not peformed and therefore some things will not work.
In order to fix the problem, I use quotes only when the OS is windows. In other cases(OS X, Linux) I escape the spaces i.e. replace " " with "\ ".
PS: The executable is a binary compiled from C code.

Using runtime.exec,process streams

Hi all,
I am using runtime.exec to execute a batch file(rmdir /s/q directoryname) which deletes all the files in a certain directory(including subdirectories). However, some of the files are not deleted since they are being used by other processes.
I have closed all file references but still the batch file says they are being used by other processes. The File.canWrite() method however, returns true for all the files. I have also tried to delete the files using file.delete but it does not work.
So I have 2 questions.
1. Can I forcibly delete these files some other way.
2. If i call a batch file to delete the files and it fails on some files, the command window displays "cannot delete files". How can I write out thse messages into a text file which i can use as a log file.Do I have to use Process.getInputstream()/Process.getInputstream() ? If so, how?
Thanks for your help.
Vinny

I tried the following before but the string i get is always empty, but i can see there are messages in the command window. Please let me now if i am doing something wrong.
try{
Process p = rt.exec("cmd.exe /c start deletefiles.bat");
InputStream ins = p.getInputStream();
byte[] bytearray = new byte[1024];
int bytecount;
String dos_string="";
BufferedInputStream bis = new BufferedInputStream(ins);
while ((bytecount = bis.read(bytearray, 0, 1024)) > -1) {
String str = new String(bytearray,0,bytecount);
dos_string += str;
System.out.println("dos string is" +dos_string);
catch (Exception e) {
System.out.println("Error: " + e);

Using Runtime.exec to execute a C++ executable

Hello,
I would like to know if it possible to execute a C++ executable using Runtime.exec() and wait for it to complete and how do I read back the output file created by the C++ executable into the Java Code?
TIA.
RHP

When I execute the code with Runtime.exec(), and read
from the Process's inputStream I am ablt to view the
cout from the C++ code. But the output file that has
to be created by the C++ code is not created,Then this is maybe an error in the C++ code? Maybe you don't have permissions to create that file where you want to.
where
would the output from the C++ code go to when I use a
ofstream in my C++ code andIf you create the file stream in C++ with an absolute file name then the output goes into that file. If it's a relative file name, then the basis is most likely the current working directory (found in the system property "user.dir" if you used one of Runtime's methods without the File argument, otherwise it's the directory you provide.
How do I read both streams
from the Java Code?You create an FileInputStream and - if you want to read character instead of binary data - on top of that an InputStreamReader. You might add a BufferedReader on top of that if you want to read line by line.
does that answer your questions?
robert

Using runtime.exec to zip some files

Hi,
I am using runtime.exec to try to automatically zip a bunch of files on a server. However, it does not seem to be working.
Before I execute the command, I save the zip command in a string. I then print the string to a log file, and then execute the runtime zip command. But nothing happens.
Yet, when I copy the string from the log, and paste it in a terminal, it properly creates the zip files. So, I know I have the correct command string, it just does not seem to be working within the java application. Also, the command string uses fully qualified directories, so it is not a directory issue.
I am using ubuntu linux.
Any ideas?
-Adam

adamSpline wrote:
Hi,
I am using runtime.exec to try to automatically zip a bunch of files on a server. However, it does not seem to be working.
Before I execute the command, I save the zip command in a string. I then print the string to a log file, and then execute the runtime zip command. But nothing happens. Within Runtime.exec() any command does not run in a shell and I bet you use wild cards and/or other commands to be interpreted by a shell which will not be interpreted since there is no shell. And, since you don't mention error messages or the return code, I will also bet you don't process the Process stdout , stderr and the return code properly.
It looks to me like you have fallen for at least two for the traps in [http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html|http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html].
>
Yet, when I copy the string from the log, and paste it in a terminal, it properly creates the zip files. So, I know I have the correct command string, it just does not seem to be working within the java application. Also, the command string uses fully qualified directories, so it is not a directory issue.
I am using ubuntu linux.
Any ideas?I agree with 'masijade' - use the built in Java classes.
>
-Adam

Launching another VM instance using Runtime.exec()

Hi,
I have two separate Swing applications, say A and B. I need to launch B from A using Runtime.exec() - essentially I am launching another VM instance from one VM. I am encountering strange problems - B's main window comes up, but GUI doesn't update; sometimes B comes up and GUI updates, but huge memory leaks happen. All the problems with B go away once A is shut down. It almost looks like both the instances of VM are sharing (or competing for) the event thread. Any comments will be of great help. Thanks.
note: There is no problem launching B if A is a console java application (i.e. no Swing GUI).

I have recently had the same problem, especially with the part where it seems like the two applications are sharing or competing for the same event thread. Sometimes my application B hangs like it is stuck waiting for an event. Sometimes I can get it to unhang by moving the app window around or minimizing it. If it does break free, all the queued events occur in rapid succession. Anybody have any clue what's going on here? It's pretty annoying.

How do I copy a file to a remote server using runtime exec - plz Help!

Hi,
I am trying to copy a file to a remote server using a runtime exec command as follows:
Runtime.getRuntime().exec("scp "+getProperty(ListNewHandsetDetailsConstant.PROP_OUTPUT_PATH_JAR)+getProperty(ListNewHandsetDetailsConstant.PROP_OUTPUT_JAR_NAME)+".jar "+" "+getProperty(ListNewHandsetDetailsConstant.PROP_OUTPUT_PATH_TWO_USERNAME)+"@"+getProperty(ListNewHandsetDetailsConstant.PROP_OUTPUT_PATH_TWO_URL)+":"+getProperty(ListNewHandsetDetailsConstant.PROP_OUTPUT_PATH_TWO_JAR));
Problem is this statement does not execute, as when I try it directly on command line, it requests for a password. Any suggestions on how I can get rid of that? I think I might have to configure my ssh_config file, but when I did some "Googling", I found the configuration settings of a ssh2_config file. I tried those (changing it to Host-based Authentication), but it didn't recognise them. Please help, this is so urgent!
Regards,
Simz

Don't use Runtime.exec (or ProcessBuilder) for this. Check out JSch at JCraft (or some other Java SSH API.

Problem of executing a process under Linux using Runtime.exec

Hi, All
I am having a problem of executing a process under Linux and looking for help.
I have a simple C program, which just opens a listening port, accept connection request and receive data. What I did is:
1. I create a script to start this C program
2. I write a simple java application using Runtime.exec to execute this script
I can see this C program is started, and it is doing what it supposed to do, opening a listening port, accepting connection request from client and receiving data from client. But if I stop the Java application, then this C program will die when any incoming data or connection request happens. There is nothing wrong with the C program and the script, because if I manually execute this script, everying works fine.
I am using jre1.4.2_07 and running under Linux fedora 3.0.
Then I tried similar thing under Windows XP with service pack2, evrything works OK, the C program doesn't die at all.

Mind reading is not an exact science but I bet that you are not processing either the process stdout or the stderr stream properly. Have you read http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html ?

Using Runtime.exec to execute Java.exe

I am trying to use Runtime.exec to spawn a thread that runs java.exe, but havn't had any luck. I have two versions of code, the first one works (example 1), but I want to eliminate the use of "cmd /c" to keep system independance. The second example (example 2) does not work. Both versions work if invoked from the command line. I'm running Win2000. Any Ideas?
Example 1:
aProcess = aRuntime.exec("cmd /c java.exe
-cp "<MyClassPathHere>" <arg1> <arg2> <arg3> <arg4> <arg5>");
Example 2:
aProcess = aRuntime.exec("java.exe
-cp "MyClassPathHere" <arg1> <arg2> <arg3> <arg4> <arg5>");

I think you mix two concepts: "threads" and "processes". A "thread" is a thread of execution inside the VM, but you want to actually start a new VM in a new process, which is an OS level thing, right?
I've tried Idea 2 also, same result: works if
i specify cmd c/, doesn't if I don't.It should work if java.exe is in your path... are you taking care of the standard streams of your process?

ADF panel does not prompt for variable defined in ADF view object.

I have created an ADF Panel, which allows the user to run a few simple queries against an Oracle database done using ADF view objects and ADF view links and ADF application module.
One of these queries lookup detail information about a given database object (Table, view or whatever) from dba_objects. The SQL uses a parameter (:P_OBJ_NAME) that has a default value of “Departments”. If I run the ADF application module by itself outside of the ADF panel, all works fine, it prompts me to provide a value for the parameter :P_OBJ_NAME.
As I said the panel contains the different ADF view links including the one that should prompt the user to provide a value for :P_OBJ_NAME. When I run the panel it does not prompt me for :P_OBJ_NAME, it just uses the default defined value “departments”.
I hope I described my problem for every one to understand. The question obviously is how do I get the ADF panel to prompt the user to provide a value for parameter :P_OBJ_NAME, my expectation was that since the sql in the view object and the application module both are designed to prompt for a value for this parameter then the panel should do just that but it does not.
You expert input would be most appreciated.
Thanks.
Bobby A.
Edited by: Babak Akbari on Aug 13, 2009 8:34 AM
Edited by: Babak Akbari on Aug 13, 2009 11:12 AM

The prompting for a parameter is a feature we built into the ADF Tester - it is not a default behavior you get in your application when you just place a VO on your page.
To get something like this expend the operations node under the VO in the data control palette, and drag the "Execute with parameters" operation to your page to drop it as a parameter form.
This will provide your user a place to fill out the parameter and press a button to execute the query.

I can no longer see my attached mail as word, excel or PowerPoint for it does not prompt me to download

IPad Air 2
version 8.3
i can no longer see my attached mail as word, excel or PowerPoint for it does not prompt me to download

Is it possible you mistakenly clicked on a [Clear Layout] button?
But a great hint is- Always click on the [Create a Saved Book] button, early in your new book design.
Then you have a permanent link to the book in the Collections panel. (In addition to the standard collection of your selected images)
Note: a Book Collection shows an icon that looks like a book.
Every time you come back to edit the book, open the Book Module by clicking on the white arrow that appears on the end of your Book Collection title. (The title as saved)
Re-opening a book without using the "Saved Book" option can have unpredictable results.
A "Book" Collection is like a "Smart Collection" because anything you do to the book design, change pages, change images, etc, is automatically updated in the Saved Book collection.

Class oracle/jpub/runtime/dbws/DbwsProxy does not exists on 10g Rel2

I trying using UTL_DBWS with samle from url http://www.freelists.org/archives/oracle-l/03-2005/msg00670.html in 10g Rel2 but I take error: class oracle/jpub/runtime/dbws/DbwsProxy does not exists .What I do incorrect?
However, using web service in Oracle rdms very hard...May be exists simply example for dummies?

Not really for dummies, but it may be a good way to get started:
Oracle Database Programming Using Java and Web Services, by Kuassi Mensah.
You have also the following resouces on OTN: Database Web Services.
-- Eric

How to run db2 command by using Runtime exec

Hello
I am using java. When i am runing db2 command by using Runtime.exec( String cmd, String[] env ). I gave the environment path
DB2CLP=6259901
DB2DRIVER=D:\ibm\db2\java\db2java.zip
DB2HOME=D:\ibm\db2
DB2INSTANCE=DB2
DB2MMTOP=D:\CMBISS
but still I am getting error message
"DB21061E Command line environment not initialized"
after setting the above path in the cmd It is working fine. When i am trying thro java programm i am getting the above error. Can I get answer for this.
bhaski.

Before you can execute DB2 commands you have to open a DB2 CLP. The following code will do so:
import java.io.IOException;
public class Db2 {
     public static void main(String args[]) {
          try {
               Runtime rt = Runtime.getRuntime();
               Process child = rt.exec("db2cmd");
               child.waitFor();
          catch (IOException io) {
               io.printStackTrace();
          catch (InterruptedException e) {
               e.printStackTrace();

Trying to run external script using Runtime.exec

Hey,
I am trying to use Runtime.exec(cmd, evnp, dir) to execute a fortran program and get back its output, however it seems to always be hanging. Here is my code snippet :
            Process process = Runtime.getRuntime().exec(
                  "./fortranCodeName > inputFile.txt" , null, new File("/home/myRunDir/"));
            InputStream stream = new InputStream(process.getInputStream());
            InputStream error = new InputStreamr(process.getErrorStream());
            BufferedReader stdoutReader = new BufferedReader(new InputStreamReader(stream));
            BufferedReader erroutReader = new BufferedReader(new InputStreamReader(error));
            System.out.println(stream.available()); //returns 0
            System.out.println(error.available());     //returns 0
            while (true) {
                String line1 = stdoutReader.readLine(); //hangs here
                String line2 = erroutReader.readLine();
                if (line1 == null) {
                    break;
                System.out.println(line1);
                System.out.println(line2);
            }I know for a fact that this fortran code prints out stuff when run it in terminal, but I don't know if I have even set up my Runtime.exec statement properly. I think I am clearing out my error and input streams with the whole reader.readLine bit I have above, but I am not sure. If you replace the command with something like "echo helloWorld" or "pwd", it prints out everything properly. I also am fairly confident that I have no environmental variables that are used in the fortran code, as I received it from another computer and haven't set up any in my bash profile.
Any Ideas?

Okay, so I implemented the changes from that website (thanks by the way for that link, it helps me understand this a little better). However, my problem is still occuring. Here is my new code:
            class StreamThread extends Thread {
            InputStream is;
            String type;
            StreamThread(InputStream is, String type)
                this.is = is;
                this.type = type;
            public void run()
                try
                    InputStreamReader isr = new InputStreamReader(is); //never gets called
                    BufferedReader br = new BufferedReader(isr);
                    String line=null;
                    while ( (line = br.readLine()) != null)
                        System.out.println(type +">"+ line);
                    } catch (IOException ioe)
                        ioe.printStackTrace();
        try {
            Process process = Runtime.getRuntime().exec(
                  "./fortranCodeName" , null, new File("/home/myRunDir/"));
            StreamThread stream = new StreamThread(process.getInputStream(), "OUTPUT");
            StreamThread errorStream = new StreamThread(process.getInputStream(), "ERROR");
            stream.start();
            errorStream.start();
            int exitVal = process.waitFor(); //hangs here
            System.out.println("ExitValue: " + exitVal);

Using Runtime.exec( "regedit") does not prompt Vista to display UAC dialog

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