It seems that using the java system Runtime you can quite happily execute standard executables, etc, but anything that requires a shell doesn't work! For example, doing:Runtime.getRuntime.exec("cmd.exe /c myBat.bat");WILL NOT WORK !!!!You jave to create the environment shell first then issue ...

I have multiple threads in my java executable accessing this call. The command that I am running within the exec is a ping to another solaris box. I have seen the threads randomly come and hang at this call. I am not sure if it is the exec or the ping itself which does not return. (I have ...

Looking on the JRE 1.4 beta it seems that this version will solve many of our problems in the webbased GUI of a host system.So it will be very interesting when Version JRE 1.4 will be completely available as a product.Beta status is fine for test, but to ship it to customers is not acceptable! ...

I have to exec the keytool command from a server:MY CODE:String cmd = new String("/usr/local/j2sdkee/bin/keytool -genkey -dname \"cn="+nome+" "+cognome+", ou="+lavoro+", o="+impresa+", c="+stato+"\" -alias cert -keypass keypass -keystore /usr/local/server4/keystore/"+userid+" -storepass ...

I have to exec the keytool command from a server:MY CODE:String cmd = new String("/usr/local/j2sdkee/bin/keytool -genkey -dname \"cn="+nome+" "+cognome+", ou="+lavoro+", o="+impresa+", c="+stato+"\" -alias cert -keypass keypass -keystore /usr/local/server4/keystore/"+userid+" -storepass ...

Hi all,I am a beginner of programming java. I want to ask how can I write a java application that can be installed to the Windows and run independently. That means it can run on a platform without Java Run Time Environment. In other words, how to produce a java application with .exeThank you ...

Hi to all,Can anbody help me , i have two options namely buttons one button creates process(i.e. creating dos window) and next button to close this window but i am unable to get this can anybody helps me.Please respond me quickly as i am very much need of this.Thanks in advance.khiz_eng ...

I have installed plug-in version 1.3.1_01 on a Win95 and installation goes fine but when I try to open the Plug-in Control Panel, I get an error "JAVAW caused a stack fault".There are no other versions of Java on the machine. What else could be causing a memory error?

============I tried to run the sample application provided by the tutorial on MulticastSocket. I use the java2sdk.I get the following error messageException in thread "main" java.net.SocketException: set socket option failed (code=10055)at java.net.PlainDatagramSocketImpl.join(Native Method)at ...

Hi all, I am using jre plugin 13.1_01 for windows with IE 5.5.4.. I have an application which has applets and EJB I use orion application server. At times I get very vague errors saying InsputStream has Non Serializable Object,.. where as the object sent over from the server is HashMap,..This ...

I have compiled my code with jdk 1.3.1. Can I run this with jre 1.2?

my java applicaction runs in Windows, i have a jar file which i can execute by double-clicking on it. If i execute it with this line since te command window (myjar.jar) it executes the application without opening an MS-DOS window, if i introduce this line ("java -jar myjar") it opens an MS-DOS ...

Is is possible to use Runtime.exec() to execute a file that is contained within a .jar file? Both the code that performs the Runtime.exec() and the executable file are in the same .jar file. It appears that Runtime.exec() requires the executable to be specified as an absolute path, or it must ...

Hi, all:Inside my java program, I need to use Runtime.getRuntime().exec(cmd) to get some file system information, for example, I need to get some files under certain folder using:Process p =Runtime.getRuntime().exec("CMD /C DIR /O-N /A-D /B C:\\temp");I try using p.getInputStream() to get the ...

Hi I am trying to invoke a browser by clicking a button on my Application .I want the browser to come up with the URL I decide before i click on the button.To invoke the browser i am using the Runtime class. and then using the Runtime.exec() method .But thats only half the solution.(Loading a ...

Hi,I have a batch file which will do some useful stuffslike compilation of jar file, deploying the ejb's underWebLogic container etc.I called the batch file under windows environment, itused to display the console without any processingon it.But similar stuff with shell script works fine ...

hi,I would like to know how to manipulate the windows registry thru java.thank you.

Hi, I created a signed applet where I ftp down an executable file, then call Runtime.getRuntime.exec(filename); where filename is the full path to the executable. I keep getting a create process error. java.io.IOException: CreateProcessat java/lang/Win32Process.shellExec (Win32Process.java)at ...

Our Java web application runs inside WebLogic Server (WLS) 5.1 SP10 on Sun 420R (4 CPUs, 4GB) running Solaris 2.6. The application uses a fair amount of memory during the day (up to 1.6GB). The JVM (JDK 1.3.1_01a) max. heap size (-Xmx option) is set to 1.7GB. When the application is running, ...

i need books related to jre

I tried:Runtime.getRuntime().exec("xxx.bat");When i run this code, i can see the dos window forless then one second, but it don't stays open.What is wrong.

I am looking for a way the get the signature of the methods in the call stack. Currently the printStackTrace() or getStackTrace() only allows me to see the method names and not the number of arguments and argument types. How can I get access to these informations at runtime?Is the only solution ...

Our site recently launched a major update. The site is tooslow.The app,web,jvm cpu usage is normal( around 40-60).This observation making me think that there is nothing wrongin the application.Can this slow response be due to poor html design, causingbrowser rendering difficult.Any help is ...

I coded a program in jbuilder5,the program includes some AWT control, but when I execute it in msdos mode with "java" command,it reported "Exception in thread 'main' java.lang. NoClassDefFoundError: Frame1(wrong name: untitled1/Frame1) at ......"I don't know why, java isn't independents ...

I'm an XP user. When will Sun release a version of JRE for IE6?A JVM is not bundled with XP's IE6 version. It is supposedto be installed "on demand", but it doesn't seem to work.Anyone got any answers,Regards, Sandeep Rajkumar.

We're developing under JDK 1.4-beta2 and are close to releasing to in-house use of our application. One thing noticed is that the entire rt.jar and other jars get loaded into memory equalling ~45MB !! I am amazed if this is 'normal' behaviour. Are we missing some tweak or option grossly ...

I have this program: NO classes called in explicitly.WHY does it take 12MB on 1.3.02, 38MB on 1.4-beta2?This is NOT sensible.public class hw {public static void main( String[] args ) {int n;while (true) {n = 1;}}} ...

I want get the InputStream from a running application.So I can not wait until the program has finished, which I executed with runtime.exec().I think id should be possible to get the InputStream beforthe process finished. Am I right?Please post an example.thx ...

When I uninstalled Java Runtime 1.2.2 and reinstalling, at the end of the installation I get an error:"Error while creating JAR file.Check you have enough disk space.See c:\winnt\temp\uncrunch.log for details"Only trouble is I've got 14 GB open and the uncrunch.log file isn't even created.Any ...

How can I set up the com port.How can I make a contact to a terminal device? It uses ECR ram, I should get data from there. I have an dll from the manufacturer, how do I include it in to my code?

Hi Guys,I developed two client side applications(applets). Locate the on Apache/Tomcat. There is also a Index.html file with two links, so when user clicks on each link the associated application will downloaded on his PC and ready to work. (In index.html I used window.open() to load the ...

Hello,I was wondering whats the maximum number of Threads recommended for the System to run to allow smooth operations?

Plz Inform me How I Set Classpath in DOS Environment.as soon as Possible.rizwantasadduq@yahoo.com

hello everyone,i just need your suggestions on how to configure a shortcut of a .class file. the shortcut is located in the windows 98 desktop. objective is, by double click on the shortcut, the java .class program will run.1. i'm using a pjee3.1 environment.2. i plan to install it in windows ...

Hello to All,I want to use unicodes \u250C\u2514 and\u2502 (Range: Box Drawing)in my application.These unicodes are displaying on Windows 2000 and Win NTbut not on Windows 98 and Windows Me.I am using same fonts on all these plateforms.Please tell me the causes and remedies.Anup Pandit ...

We have a full-fledged Java application which weighs in at ~35Mb at runtime. If we were to deploy this on Windows 2k Terminal Server how would the server load look like?Are we talking linear growth or what?

I want to know hoe to execute dos command such as "dir" in java.i dont sure Runtime.exec() can help me or not!Please help me and tell me where can find tutorial about this thing! thx~

I'm interested in getting all the system properties that java command can take ?Tryied to find a site with such info but I only found some rmi properties (setting a proxy and port made me seach for this...)thank you!

I'm try copy a file between servers with Windows NT. I mapping the target server to drive X and test copying a file in windows explorer and command window and the files copy is OK. But if I try with a java class don't. I'm try with FileInputStream (read) and FileOutputStream (write) but ...

Hi: Given a full path of one class file,I intend to load it byClassLoader.I append its directory to the classpathproperty by calling the method "System.setProperty("java.class.path",System.getProperty("java.class.path") + ";" + directory);", but at last the ClassLoader object failed to load the ...

Is there a Java Run Time Enviroment or JVM for Pocket PC?

I try to use the exec class to execute a c-shell script in my java gui program like this. But I don't get anything when clicking on the start button.here is my code: Runtime r = Runtime.getRuntime();r.exec("./DDMReportEvents"); ./DDMReportEvents is the name of the c-shell script. ...

Hi, I have tried to execute a very simple java program which is printed out "Hello world" from another java gui program when the user click on the "START" button. However, I don't receive any print out on the terminal when they click it. These two programs are being developed in Unix ...

Dear all,My program 1. Reads large number of files (>5000)2. String tokenize them to get individual words 3. Put them into a vector4. Parse the vector to calculate term freq and document frequency...I am getting OutOfMemory error in the second step. How can I solve this?Should I increase the ...

I've been trying to get my browser (Netscape 4.77 on Windows NT) to run swing applets. I've gotjre 1.3.1 installed and it said it got the plugin,but when i try to run the test applet at the urlwww.java.com/products/jfc/tsc/articles/getting_started/applet_test.html i get an error message ...

Need help terminating a Windows dial-up network session from my Java application demo. The application runs on an unattended PC and periodically initiates a Dial-Up networking session, in order to send an email.I'm binding a Process variable to the output from...<runtime>.exec("rundll ...

I have a Netscape 6 Plug-in Error with Java 1.4 Beta 3. Basically when I attempt to put a check beside the Netscape 6 browser box in the browsers tab in the Java Plug-in applet in the Control Panel and then I click apply, it says unable to change settings in Netscape 6. Please check to see if ...

when using Mozilla 0.9.x or NS6.x with Sun Java 1.3._01 or 1.3.1 on a WinNT 4.0 sp6 machine all applets fail. I have yet to see the Sun Java run-time enviornment work at all. Below is the typical error message I get. Can someone help me figure this out, it is driving me nuts (and back to ...

Hello,I am doing my assignment. There is a question about thedifferencebetween "java filename" and "java -classic filename."In filename, there are several threads runningsimutanously.Any ideas?Duy

Could someone please help me....when I install the java SDK on my computer (any version) it will not compile files that use inhertances (I have tried everything!) I is really annoying, thanksP.S. Do you have any idea how annoying it is to use a keyboard that's spacebar doesn't work? well let ...