Need to run two commands in Runtime.getRuntime.exec()???

I need to run two commands in the same shell , in the same exec function... is this possible? I tried to invoke
ksh -e ... command1;command2
but that did nothing

I need to run two commands in the same shell , in the
same exec function... is this possible? I tried to
invoke
ksh -e ... command1;command2
but that did nothingI'm not all that familiar with that particular shell (ksh), but if it works from the command-line, I'd venture to guess that it would have worked there as well. My guess is it did "work" (executed the 2 commands) but that you may have misdiagnosed the real problem (current working directory assumption incorrect, etc).

Similar Messages

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 {
     ClassReportDeleteDaemon()
     public static void main(String[] args) throws Exception
          Connection conn = null;
          Statement stmt = null;
          ResultSet rs;
          String strQuery = null;
          String strdaysback = null;
          String delstring = null;
          int daysback;
          try
               System.out.println("REPORT DELETION ::: FINDING DRIVER");
               Class.forName("oracle.jdbc.driver.OracleDriver");
          catch(Exception e)
               System.out.println("REPORT DELETION ::: DRIVER EXCEPTION--" + e.getMessage());
               System.out.println("REPORT DELETION ::: DRIVER NOT FOUND");
          try
               String strUrl = "jdbc:Oracle:thin:" + args[0] + "/" + args[1] + "@" + args[2];
               System.out.println("REPORT DELETION ::: TRYING FOR JDBC CONNECTION");
               conn = DriverManager.getConnection(strUrl);
               System.out.println("REPORT DELETION ::: SUCCESSFUL CONNECTION");
               while(true)
                    System.out.println("WHILE LOOP");
                    stmt = conn.createStatement();
                    strQuery = "SELECT REP_DAYS_OLD FROM T_REPORT_DEL";
                    rs = stmt.executeQuery(strQuery);
                    while(rs.next())
                         strdaysback = rs.getString("REP_DAYS_OLD");
                         //daysback = Integer.parseInt(strdaysback);
                    System.out.print("NO of Days===>" + strdaysback);
                    delstring = "find /tmp/reports1 -name " + "\"" + "*" + "\"" + " -mtime +" + strdaysback + " -print|xargs rm -r";
                    System.out.println("DELETE STRING===>" + delstring);
                    Process proc = Runtime.getRuntime().exec(delstring);
                    //Get error stream to display error messages encountered during execution of command
                    InputStream errStream=proc.getErrorStream();
                    //Get error stream to display output messages encountered during execution of command
                    InputStream inStream = proc.getInputStream();
                    InputStreamReader strReader = new InputStreamReader(errStream);
                    BufferedReader br = new BufferedReader(strReader);
                    String strLine = null;
                    while((strLine=br.readLine())!=null)
                         System.out.println(strLine);
               }     //end of while loop
          }     //end of try
          catch (Exception e)
               System.out.println("REPORT DELETION ::: EXCEPTION---" + e.getMessage());
               conn.close();
     }     //end of main
}     //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
        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

Need help on changing directories with Runtime.getRuntime().exec() (shell)

I want to create a perfect remote shell with Runtime.getRuntime(). I just can't get it to change directories. I want that if the remote user type "cd.." he changes the directory. At the moment, I can't get anything else than the "user.dir" directory.
Is there anyway to send additionnal commands to cmd.exe after the Runtime.getRuntime().exec(). Because at the moment I'm running these commands:
cmd[0] = "cmd.exe" ;
cmd[1] = "/C" ;
cmd[2] = commandString;
After that I just wanna do stuff as if I really was at the computer and had a cmd.exe window open. I tried the output stream, I tried placing "&&" in front of the commandString(worked when I did it in cmd window), tried doing multiple Runtime.getRuntime().exec(). Starting to pull my hair out here.

Because essentially I want this to be a remote shell.
So I need it to accepts commands such as cd to change
around the directory so the person can navigate the
computer.
I just managed to be able to do it in one command
line. For example I would send "cd c:\downloads dir"
to the server and it would work but I would really
like to keep track of the working directory so the
user wouldn't always have to change the directory.Then you don't Runtime.exec() once for each command the user types. You Runtime.exec() a shell once, and pass what the user types and the shell's responses via the in/out streams available from the Process class.

Executing a command by Runtime.getRuntime.exec().

Hi,
I am try to run a java command from one java program. Is it possible
eg :
public class A {
public static void main(String[] args) {
String startjvm ="java -classpath E:\classes B";
Runtime.getRuntime.exec(startjvm);
public class B {
public static void main(String[] args) {
System.out.println("Inside the main for class B");
when i execute the above command from the command line it executes,but when are run the main method for class A nothing happens meaning the message : "Inside the main for class B" is not displayed.
I also tried displaying the int returned by process.waitfor() method. process is the object returned by the Runtime.getRuntime.exec() method. The int returned is 0 which means the process terminated previously.
Thanks in advance

You could get InputStream from created Process and read
information from it.
For example
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class A {
    public static void main(String[] args) {
        try{
            String startjvm ="java -classpath E:\\classes B";
            Process s = Runtime.getRuntime().exec(startjvm);
            BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream()));
            String line = "";
            while ((line = in.readLine()) != null) {
                System.out.println(line);
            in.close();
        }catch(Exception e){
            e.printStackTrace();
    }

Running commands from the Command Prompt - Runtime.getRuntime().exec()

Hi there,
I'm already able to run several commands in the command prompt.
But my problem is that I need all the commands that I run share the same context.
If, for example, I run "cmd /c set HOME=C:" (1st command), I want to be able to access that variable the next time, so that later when I run "dir %home%" it shows the directories in c: (This is just a example this is not what I really want to do...)
I used code posted in a newsgroup (don't remember which)
This is the code I use to execute commands:
     private int execute(String command)
     int exitVal = 0;
try
String nomeOS = System.getProperty("os.name" );
String[] cmd = new String[3];
if( nomeOS.equals( "Windows NT" ) || nomeOS.equals("Windows 2000") )
cmd[0]="cmd.exe";
cmd[1]="/c";
cmd[2]=command;
else if( nomeOS.equals( "Windows 95" ) )
cmd[0]="command.com";
cmd[1]="/c";
cmd[2]=command;
if (rt==null)
     rt = Runtime.getRuntime();
          Process proc = rt.exec(cmd);
          CommandStream erro = null;
          // erros?
          if (proc.getErrorStream()!=null)
               erro = new CommandStream(proc.getErrorStream());
               erro.start();
// output?
CommandStream output = new
CommandStream(proc.getInputStream());
// arranque
output.start();
// erros???
exitVal = proc.waitFor();
     } catch (IOException e)
               System.out.println("Exce !!!" );
               e.printStackTrace();
     catch (InterruptedException ie)
               System.out.println("Ocorreu uma excep��o !!!" );
               ie.printStackTrace();
return exitVal;

My problem is bigger than setting a few parameters,
I'm doing a GUI to a CVS client and the problem is that some commands of CVS only work if you're in the right directory, or if you're authenticated, and all of this is easily done doing a series of execution:
In a command prompt opened I would:
set cvsroot=:pserver:lpinho@w2palf38:/project
cvs -d :pserver:lpinho:xxxxx@w2palf38:/project login
mkdir temp_my_proj
cd temp_my_proj
cvs checkout my_projectAll this would make what I wanted...
And there's another thing, when I set the envp, I get some errors like "cvs.exe is not recognized as an internal or external command" (the path went bye bye) and if I set the path (envp[0]="path=c:\cvsnt"), I'm able to run cvs but I get a crazy error "No such host is known" (I run exactly the same command in the command prompt and it works...)
Do you know any way of getting the current environment, and pass it as the envp parameter?
Thank You
Luis Pinho

Syntax of Runtime.getRuntime().exec()

i hava batch file command (genXML) in directory C:\update ,this command syntax is: genXML sourceFile resultFile outputDirectory
how can I run the command with Runtime.getRuntime().exec() ?
Thanks

i hava batch file command (genXML) in directory
C:\update ,this command syntax is: genXML sourceFile
resultFile outputDirectory
how can I run the command with
Runtime.getRuntime().exec() ?
Thanksuse the
public Process exec(String[] cmdarray)
version of exec as follows:
where genProg is the path and name of your genXML program
ie. genProg = "C:\\update\\genXML.exe"
String[] cmd = {genProg, source, results, outputDir};

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.

Runtime.getRuntime().exec problem with linux script.

Hello,
I try to start a script under Linux RedHat 9. This script must just create another file.
I work with JDK 1.4.1_02b06.
If I use the next command
process = Runtime.getRuntime().exec("/temp/myScript.sh");
This is not working. I script file is existing otherwise I receive an error. I don't understand why the script is not executed!
I have check some other posts in this forum but I cannot find the solution.
Thanks in advance for your help.
Alain.

Try running it with sh: Runtime.getRuntime().exec("sh /temp/myScript.sh");

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(cmd) - 'out of space'

And helpful suggestions from the Java / AIX boffins out there would be appreciated.
System: AIX 4.3 jdk 1.3.1
Briefly, I am attempting to invoke the ibm 'c' compiler from within a java program.
The command:-
p = Runtime.getRuntime.exec("/usr/ibmcxx/bin/cc test.c")
returns the os error 'mmap failed: Not enough space'
other commands that do work:-
p = Runtime.getRuntime.exec("ls -l")
return successfully without error
p = Runtime.getRuntime.exec("/usr/ibmcxx/bin/cc Notfound.c")
raises the error '/usr/ibmcxx/bin/cc 1501-288 input file NotFound.c not found' - as expected.
Additionally:-
I have tried invoking the program with the -msnnM & -mxnnM flags set to large values.
/usr/ibmcxx/bin/cc test.c : works happily from the command line.
cheers
John.

Thanks but not made any difference.
keep those ideas coming!
Does any body 'real' understand how the getRuntime() interacts with the underlying OS? I assume that the "mmap failed" is coming from the compiler rather then the JVM. But does it throw this error only when run through the JVM ?
John.

Runtime.getRuntime().exec() unix shell

When I try to run commands like Runtime.getRuntime().exec("ls *")
I got null returned buffer
If I use commands like Runtime.getRuntime().exec("ls file.dat")
i got the right details
Anybody know why it happens???
Thanks

Input-output redirection, filename wild-card-expansion, metacharacter evaluation etc. are performed by the command shell.
You should try String [] {"sh","-c","ls","*"}

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.
I am not using libcurl or anything else, I am running a simple curl command as a command line utility from inside a Java program.
Any ideas on why this might be happening?

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.
I am using 7.15 in my system.
Below is the code which errors out.
public int execCurlCmd(String command)
          String s = null;
          try {
              // run the Unix "ps -ef" command
                 Process p = Runtime.getRuntime().exec(command);
                 BufferedReader stdInput = new BufferedReader(new
                      InputStreamReader(p.getInputStream()));
                 BufferedReader stdError = new BufferedReader(new
                      InputStreamReader(p.getErrorStream()));
                 // read the output from the command
                 System.out.println("Here is the standard output of the command:\n");
                 while ((s = stdInput.readLine()) != null) {
                     System.out.println(s);
                 // read any errors from the attempted command
                 System.out.println("Here is the standard error of the command (if any):\n");
                 while ((s = stdError.readLine()) != null) {
                     System.out.println(s);
                 return(0);
             catch (IOException e) {
                 System.out.println("exception happened - here's what I know: ");
                 e.printStackTrace();
                 return(-1);
     }

Runtime.exec() I need to run a command prompt command from java.

the code i have that doesn't seem to work is:
String driveloc = System.getProperty("user.dir").substring( 0, 1 );
        String path = jTextFieldPath.getText();
        String path2 = jTextFieldPath.getText().substring(0, jTextFieldPath.getText().length()-3) + "lst";
        String[] cmd = { "cmd.exe", "/" + driveloc, "ASMtools\\AS11 " + path + " -L >" + path2};
        txt_mf.append( cmd[3] );
        try {
            Process np = Runtime.getRuntime().exec( cmd );
        catch( java.io.IOException ioe) {
            //error
        }jTextFieldPath.getText() contains the path of the file saved by my program.
the line of code i am trying to run is:
AS11 FILE1 -L FILE2this line compiles the asm file and converts it to a lst creating an s19 file in the process. AS11 is an exe that aids the command prompt much like javac.
If you could help me figure this out it would be great.
Thanks in advance,
-Juke

String driveloc =
System.getProperty("user.dir").substring( 0, 1 );
String[] cmd = { "cmd.exe", "/" + driveloc,
"ASMtools\\AS11 " + path + " -L >" + path2};Are you sure you want to invoke cmd.exe with the switch /c or /d or whatever depending on System.getProperty("user.dir") ?
Starts a new instance of the Windows 2000 command interpreter
CMD [A | /U] [Q] [D] [E:ON | /E:OFF] [F:ON | /F:OFF] [V:ON | /V:OFF]
    [[S] [C | /K] string]
/C      Carries out the command specified by string and then terminates
/K      Carries out the command specified by string but remains
/S      Modifies the treatment of string after /C or /K (see below)
/Q      Turns echo off
/D      Disable execution of AutoRun commands from registry (see below)
/A      Causes the output of internal commands to a pipe or file to be ANSI
/U      Causes the output of internal commands to a pipe or file to be
        Unicode
/T:fg   Sets the foreground/background colors (see COLOR /? for more info)
/E:ON   Enable command extensions (see below)
/E:OFF Disable command extensions (see below)
/F:ON   Enable file and directory name completion characters (see below)
/F:OFF Disable file and directory name completion characters (see below)
/V:ON   Enable delayed environment variable expansion using c as the
        delimiter. For example, /V:ON would allow !var! to expand the
        variable var at execution time. The var syntax expands variables
        at input time, which is quite a different thing when inside of a FOR
        loop.
/V:OFF Disable delayed environment expansion.

Unable to run certain commands on unix using the Runtime.getRuntime().exec(

Hi Folks,
I am unable to get any output if I try : Runtime.getRuntime().exec("who am i")
however for Runtime.getRuntime().exec("pwd") I am getting the present working directory path !!!
if I give Runtime.getRuntime().exec("echo $PATH") then instead of printing the path it prints $PATH instead !!! similarly it is unable to understand any of the special unix characters such as " or ' & is assuming it to be a literal instead.
Any idea why this is happening ?? and any solution for the same
regards
Anand

I don't think that Runtime.getRuntime().exec() spawns a shell it just executes the file that is specified in the string. ecause of this you can not use commands that are built-in in the shell directly nor use special shell characters. You must spawn your own shell, try something like this:
Runtime.getRuntime().exec("sh");I'm sure you can add some switch to sh to execute a command by I am not using unix myself so I don't know how. Someone else have to help you with that. You can allways read the man-pages.

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) {
          String result = "";
          try {
               // Execute a command
               Process child = Runtime.getRuntime().exec(command);
               // Read from an input stream
               InputStream in = child.getInputStream();
               int c;
               while ((c = in.read()) != -1) {
                    result += ((char) c);
               in.close();
               in = child.getErrorStream();
               while ((c = in.read()) != -1) {
                    result += ((char) c);
               in.close();
          } catch (IOException e) {
          return result;
     }the second function allows me to send multiple commands to the cmd
public static String exec(String[] commands) {
          String line;
          String result = "";
          OutputStream stdin = null;
          InputStream stderr = null;
          InputStream stdout = null;
          // launch EXE and grab stdin/stdout and stderr
          try {
               Process process;
               process = Runtime.getRuntime().exec("cmd.exe");
               stdin = process.getOutputStream();
               stderr = process.getErrorStream();
               stdout = process.getInputStream();
               // "write" the parms into stdin
               for (int i = 0; i < commands.length; i++) {
                    line = commands[i] + "\n";
                    stdin.write(line.getBytes());
                    stdin.flush();
               stdin.close();
               // clean up if any output in stdout
               BufferedReader brCleanUp = new BufferedReader(
                         new InputStreamReader(stdout));
               while ((line = brCleanUp.readLine()) != null) {
                    result += line + "\n";
               brCleanUp.close();
               // clean up if any output in stderr
               brCleanUp = new BufferedReader(new InputStreamReader(stderr));
               while ((line = brCleanUp.readLine()) != null) {
                    result += "ERR: " + line + "\n";
               brCleanUp.close();
          } catch (IOException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          return result;
     }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...)

Need to run two commands in Runtime.getRuntime.exec()???

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