mkdirs not working in windows 7

mkdirs not working in windows 7 - java

I made a small java app that copies a directory from a CD to the HD. I made the program using Windows Vista and it worked, but when i ran it in Windows 7, it fails.
The main problem is that a folder inside the Program Files folder needs to be created.
I used DestinationFolder.mkdirs(), but it fails creating it
This is the java code:
public void Install_App()
{
File srcFolder = new File(System.getProperty("user.dir") + "\\WINDOWS");
File destFolder = new File("C:\\Program Files\\test1\\test2\\");
if (srcFolder.exists())
{
try{
if(!destFolder.exists())
{
destFolder.mkdirs();
}
copyFolder(srcFolder,destFolder,1);
}catch(IOException e){
e.printStackTrace();
JOptionPane.showMessageDialog(null, e.toString());
error=true;
System.exit(0);
}
} else
{
JOptionPane.showMessageDialog(null, "Error. Source Directory doesn't exist.");
error=true;
};
}
... and then there is a copyfolder function that copies the files with inputstream and outputstream.
The problem is that the folder is never created. My login user is an administrator. And as i said, it worked in Vista.
Could you help me, please?
Thanks.
The thing is that i created this app in java to run it in Windows and Mac.
In Windows it should autorun with and autorun.inf like this:
[autorun]
OPEN=java_app.bat
then this bat will run this:
#echo off
start javaw -jar "java_app.jar"
EXIT
so how can i modify it to run it as administrator automatically?
The main idea of this java app is simplify the process of install & use an external application no matter which OS are you using. If I have to ask the user to run it as admin it will loose it's sense (of been simple of use).

I am guessing you are running your code as regular user.
Writing into Program Files directory as a regular-user is by default blocked by UAC under Windows 7. That's why your Java code fails to create directories.
Try running your Java code from a privileged shell. You can have one by Start > [type cmd] > [right-click on 'cmd.exe' and select "Run as administrator"]. Now, run your compiled code with java -jar or java -classpath from the administrator command prompt. It should work now.
Automating the UAC prompt:
You need to create a manifest file as described in detail at [1] and [2] to let Windows/UAC know that your program would need elevated privileges.
Also check this [3] utility called elevate that would spawn your program as child process while handling the UAC permission requests all being made from the parent (elevate) program itself.
[1] [http://msdn.microsoft.com/en-us/library/aa511445.aspx][2]
[2] [http://msdn.microsoft.com/en-us/library/bb756929.aspx][3]
[3] [http://www.wintellect.com/cs/blogs/jrobbins/archive/2007/03/27/elevate-a-process-at-the-command-line-in-vista.aspx][4]

This is all the permission problems. I have the same problem on my machine. Nothing is wrong with your java code. I tried to create folder using command line and got "Access Denied".
C:\Users\alexr>mkdir "C:\Program Files\mytest"
Access is denied.
So, the solution is whether to create folder in other location or run as administrator. As #Alex K. aready said, refer to this post to learn how to get such permissions.
Windows 7 Create Folder in "Program Files" failing in C# code even thought I have admin rights!

You do not have the proper privileges to create directories in Program Files. You must start the application with administrative privileges.
An important thing to learn is that when you are developing your applications you should never write them to save/modify data inside Program Files; instead they should either write to AppData our My Documents.
Modifying files in Program Files has been severely deprecated ever since Windows Vista, and even earlier than that. You should try and follow this rule from the start, or it means headaches to rewrite your entire application if you ever want to publish it online.

Related

Create new process with Runtime.getRuntime() in Android

After searching the web about a problem I have I found that answer.
in brief, I need to spawn a new process from an Android application, and run a simple C program.
I've created simple C program, like the next one:
int main()
{
printf("This is the message before sleep() function\n");
while(1){
Sleep(1000);
}
printf("This is the message after 1 second");
return 0;
}
Iv'e complied the C program with Cygwin with the next command (gcc myProgram.c -o myProgram).
Iv'e put that file in the assest folder and I copied it at the begining of the program to the internal device memory to the folder "data/data/packageName/files/myProgram".
Now I want to execute the program, and when I will check, adb shell -> ps I want to see two process with the same name, but I can't find it.
I am trying to run the program like this:
Runtime.getRuntime().exec("chmod 755
data/data/packageName/files/myProgram");
This is not working, I can't find two process, and I don't know if this is the right way.
What I'm doing wrong?
Thanks.

You need to deploy the binary to the file system, to a location which is not marked as non-executable (that's why /sdcard/ and other common places don't help). You need to choose the version of your executable that matches the platform (armeabi, or x86, or mips). You should make sure that the file you deployed has the eXecutable permission.
The easiest way to ensure all this is to copy the arm build of your binary to ${project_root}/libs/armeabi/lib_myProgram_.so, and same for other relevant ABIs. Now the APK builder will pack the binary(s), and the installer will unpack them (with eXecutable permissions) to /data/data/your.package.name.with.dots/lib/lib_myProgram_.so.
All this done, you simply call from Java (the following line can be called from Activity or Service, which have access to context):
Runtime.getRuntime().exec(getContext().getApplicationInfo().nativeLibraryDir + "lib_myProgram_.so");

Running a JAVA program as a scheduled task

I am trying to run a simple JAVA program once per day on a Windows 7 machine.
My code runs fine inside NetBeans. If I do a clean and build it suggests this:
C:\Program Files\Java\jdk1.7.0/bin/java -jar "C:\Users\User1\Documents\NetBeansProjects\Facebook\dist\Facebook.jar"
This does not work from the DOS prompt of course because of the space between program and files so I do this:
C:\Program Files\Java\jdk1.7.0/bin/java -jar "C:\Users\User1\Documents\NetBeansProjects\Facebook\dist\Facebook.jar" -jar "C:\Users\User1\Documents\NetBeansProjects\Facebook\dist\Facebook.jar"
This works from the DOS prompt.
I now create a task in Windows Scheduler to run:
C:\Program Files\Java\jdk1.7.0/bin/java
with arguments:
-jar "C:\Users\User1\Documents\NetBeansProjects\Facebook\dist\Facebook.jar"
When I then run it, all I see is a DOS box flashing up for a second. I expect the code to take about 30 secs to run. The code should persist data to a database and no updates happen.
The code also uses java.util.logging so I should see log entries and I don't.
I strongly suspect that I am not running the JAVA command properly or that there's a bad classpath issue that it present when running via Scheduler that isn't there when running from the DOS prompt.
Help would be appreciated. If you've seen this before and can sort it that would be great. If you can tell me how to get a meaningful error trace from Scheduler than that would also be really helpful.
Thanks!

I Think that you could create a simple batch script that will launch your program in this way :
#echo off
REM Eventually change directory to the program directory
cd C:\Users\User1\Documents\NetBeansProjects\Facebook\dist\
REM run the program
"C:\Program Files\Java\jdk1.7.0\bin\java.exe" -jar "C:\Users\User1\Documents\NetBeansProjects\Facebook\dist\Facebook.jar"
Copy it into the notepad and save as java_script.cmd and then schedule this script instead of the program directly.

I solved it after changing all fonts' references to "SansSerif"
I was using Jasper Reports inside Java to create a PDF file. It was working fine when I double click the batch file or Scheduler with Windows Server 2003 but not working with the Scheduler of 2008.
I tried many different things nothing worked so I though Could it be that Windows Server 2008 is blocking the access?.
Now is working perfect. So, if you are having problems check the references to anything you are using.

The scheduler will run under a different user unless you specify what user to run as. If it isn't running as your user then it won't be able to write to your directories.

The real problem to the original question is a java installation issue on Microsoft systems. Java jre installs into Program Files\java. The executable (java.exe) is only installed in that java\bin directory. Running from the command line, the os looks in the proper location for the java.exe. Running from other MS tools (such as VBA Excel or in this case TaskScheduler), it does not!
You can see that TaskScheduler is looking in the wrong place by viewing the tasks history in the TaskScheduler tool. Double click on some of the history events and one will list the action and return code. The action will show that the TaskScheduler is trying to run
"C:\Windows\system32\java.EXE"
So, copy java.exe from the java\bin directory into the place where the scheduler is looking, and now it will work.
Or update your task and provide the full path to java.exe.
You can also update the environment system path to look for java in the java\bin directory, but that has to apply to all users and sometimes this is faulty as well.

running C++ exe from servlet

I am running a server on my machine. When Servlet receives a message, the corresponding Visual C++ ".exe" need to start running.
I am using following code to start the exe. But I am getting "Microsoft Visual C++ Debug Error". The code is as follows:-
if(strLine.equals(location))//same place do not do anything
{
Runtime rt=Runtime.getRuntime();
String cmd[]={"cmd.exe", "/c", "C:\\Users\\nabeel.OUCS1289\\Documents\\Visual Studio 2010\\Projects\\Scene Localization - (FM)\\Debug\\Scene Localization.exe"};
rt.exec(cmd);
System.out.println("Same place so dont do anyuthing");
}
Please help me out in this regard.

The EXE file to be executed is located in a user profile directory. Does the account running the JRE/Webserver does have read & execute permissions on that particular directory?
Furthermore remove the indirect execution via cmd.exe /c .... This is total unnecessary for regular executables. It is only required in case you are executing a command that is provided by cmd.exe itself and therefore can not be executed via an exe file.

Java Project admin privileges windows 7

I am building a swing application (a file explorer) that has to copy/move files/folders around. When I try to copy to some folders such as Program Files, it throws an exception (access denied). I can solve by running NetBeans as administrator.
Is there anyway I can give admin rights to my project only, without running the whole Virtual Machine as admin?

You could, for a really horrible non-cross-platform method, use VBScript's .ShellExecute and Runtime.exec to force a program to run as an administrator.
For brevity's sake, I have created a simple program available at
https://dl.dropbox.com/u/26746878/Misc/JavaElevated.zip
It can be run with java Launcher.
From NetBeans, I'd assume you'd somehow get it to run the Launcher as the main class instead of the main Program.

Is there not a command line startup, I'm sure there is and that there is a guy(ette) out there who would write it out for us in about 10 hot seconds. Windows 7/64

Running JAR file on Windows

I have a JAR file named helloworld.jar.
In order to run it, I'm executing the following command in a command-line window:
java -jar helloworld.jar
This works fine, but how do I execute it with double-click instead?
Do I need to install any software?

Easiest route is probably upgrading or re-installing the Java Runtime Environment (JRE).
Or this:
Open the Windows Explorer, from the Tools select 'Folder Options...'
Click the File Types tab, scroll down and select JAR File type.
Press the Advanced button.
In the Edit File Type dialog box, select open in Actions box and click Edit...
Press the Browse button and navigate to the location the Java interpreter javaw.exe.
In the Application used to perform action field, needs to display something similar to C:\Program Files\Java\j2re1.4.2_04\bin\javaw.exe" -jar "%1" % (Note: the part starting with 'javaw' must be exactly like that; the other part of the path name can vary depending on which version of Java you're using) then press the OK buttons until all the dialogs are closed.
Which was stolen from here: http://windowstipoftheday.blogspot.com/2005/10/setting-jar-file-association.html

In Windows Vista or Windows 7, the manual file association editor has been removed.
The easiest way is to run Jarfix, a tiny but powerful freeware tool. Just run it and your Java apps is back... double-clickable again.

If you need to distribute your .jar file and make it runnable at other people's Windows computers,
you can make a simple .bat file like this in the command prompt:
java -jar MyJavaTool.jar
and place the .bat file in the same directory as your .jar file.

If you have a jar file called Example.jar, follow these rules:
Open a notepad.exe
Write : java -jar Example.jar
Save it with the extension .bat
Copy it to the directory which has the .jar file
Double click it to run your .jar file

An interesting side effect of this causes a problem when starting runnable jar files in the command prompt.
If you try (in a command prompt):
jarfile.jar parameter
No joy, because this is being translated to the following (which doesn't work):
javaw.exe -jar jarfile.jar parameter
However, the following command does work:
java.exe -jar jarfile.jar parameter
If you change the association in file manager as described above to:
"C:\Program Files\Java\j2re1.4.2_04\bin\java.exe" -jar "%1" %*
Then you can type:
jarfile.jar parameter
in the command prompt and it will now work!
EDIT:(However you then get a black console window when you run a form based (non console) Java app, so this is not an ideal solution)
If you run these jar files by double clicking them in windows, no parameters will be passed so your Java code needs to handle the stack overflow exception and include a "press a key" function at the end or the window will just disappear.
In order to pass a parameter in windows you have to create a shortcut to the jar file, which includes the parameter in the target line (right click on the shortcut and select properties) you can not add parameters to the jar file icon itself in this way.
There isn't a single, consistent solution here, but you would have the same problem with any other console application.
There is a windows freeware application called "bat to exe" which you can use to create an exe file from a .bat file with the apropriate command line in it. you can also embed the jar file in the exe with this application, and make it clean it up when it has finished running, so this may be a more elegant solution.

First set path on cmd(command prompt):
set path="C:\Program Files\Java\jre6\bin"
then type
java -jar yourProgramname.jar

In Windows XP * you need just 2 shell commands:
C:\>ftype myjarfile="C:\JRE1.6\bin\javaw.exe" -jar "%1" %*
C:\>assoc .jar=myjarfile
obviously using the correct path for the JRE and any name you want instead of myjarfile.
To just check the current settings:
C:\>assoc .jar
C:\>ftype jarfile
this time using the value returned by the first command, if any, instead of jarfile.
* not tested with Windows 7

In regedit, open HKEY_CLASSES_ROOT\Applications\java.exe\shell\open\command
Double click on default on the left and add -jar between the java.exe path and the "%1" argument.

There is way without requiring user to do changes on his PC. Runtime.getRuntime.exec() allows us to start cmd.exe and execute commands inside of it. So, it's possible for java program to run itself in command prompt when user clicks .jar file.
public static void main(String[] args) throws IOException {
if(args.length == 0) {
Process p = Runtime.getRuntime().exec("cmd.exe /c start java -jar " + (new File(NameOfClass.class.getProtectionDomain().getCodeSource().getLocation().getPath())).getAbsolutePath() + " cmd");
} else {
//code to be executed
}
}

Besides all of the other suggestions, there is one other thing you need to consider. Is your helloworld.jar a console program? If it is, then I don't believe you'll be able to make it into a double-clickable jar file. Console programs use the regular cmd.exe shell window for their input and output. Usually the jar "launcher" is bound to javaw.exe which doesn't create a command-shell window.

I´m running Windows 7 x64 and was unable to use any of these fixes.
This one worked for me afterall:
http://thepanz.netsons.org/post/windows7-jar-file-association-broken-with-nokia-ovi
There is an archive which you can download containing a .bat file to run, but check the path of the actual javaw.exe!!!!

You want to check a couple of things; if this is your own jar file, make sure you have defined a Main-class in the manifest. Since we know you can run it from the command line, the other thing to do is create a windows shortcut, and modify the properties (you'll have to look around, I don't have a Windows machine to look at) so that the command it executes on open is the java -jar command you mentioned.
The other thing: if something isn't confused, it should work anyway; check and make sure you have java associated with the .jar extension.

Unfortunatelly, it is not so easy as Microsoft has removed advanced file association dialog in recent Windows editions. - With newer Windows versions you may only specify the application that is going to be used to open .jar file.
Fixing .jar file opening on Windows requires two steps.
Open the Control Panel, and chose "Default Programs -> Set Associations". Find .jar extension (Executable JAR file) there, and pick Java as default program to open this extension. It will probably be listed as "Java Platform(SE)". A faster alternative perhaps is straightforward right-click on a .jar file, and then change associated program by clicking on the "Change..." button.
Now open the regedit, and open the HKEY_CLASSES_ROOT\jarfile\shell\open\command key. Luckilly for us, we may specify parameters there for the (Default) value. On my Windows system it looks like: C:\app\32\jre7\bin\javaw.exe" -jar "%1" %* but in most cases it is the following string: C:\Program Files\Java\jre7\bin\javaw.exe" -jar "%1" %*
NOTES:
Do not use java.exe there as it will open the shell window.
The jarfix tool mentioned in this thread most likely does nothing more than the registry modification for you. I prefer manual registry change method, as that implies that system administrator can "push" the registry change to all workstations in the network.

Create .bat file:
start javaw -jar %*
And choose app default to open .jar with this .bat file.
It will close cmd when start your .jar file.

Got the same problem, on Windows 10
The solution:
Check your JAVA_HOME and JAVA_PATH.
https://javatutorial.net/set-java-home-windows-10
Use Jarfix to restore the assiciation between .jar and javaw.exe
https://johann.loefflmann.net/en/software/jarfix/index.html

I had the same problem in Windows 10. I fixed it using righ-click on the "helloworld.jar" and go to properties and click on change button under "Opens with:" and select "Look for another app on this PC". In the "Open with..." dialog box, go to your Java folder location on your PC and open corresponding jdk folder and then open the bin folder and select "javaw.exe" from there. Then next time your "helloworld.jar" will open the normal way.
Usual java location example : "C:\Program Files (x86)\Java\jdk1.8.0_111\bin".

Another way to run jar files with a click/double-click, is to prepend "-jar " to the
file's name. For example, you would rename the file MyJar.jar to -jar MyJar.jar.
You must have the .class files associated with java.exe, of course. This might not work in all cases, but it has worked most times for me.

PreScript: If your prompt appears and disappears immediately, the reason it does so is that your program gets executed and auto shut. Try putting a scanner in the end to terminate and it'll keep your prompt waiting for input before terminating. (Or use delay maybe)
Was in the very same situation, where running .jar from cmd was working fine, but double clicking did nothing.
Solution:
Open any text editor and write the command line:
java -jar Example.jar
Save the file as a .bat file.
Run this bat file to get the needed output.
Taking it one step forward, you can convert this bat file to exe file using a simple GUI tool like Bat To Exe Converter.
Now you can share your .jar as a distribution in .exe file which anyone can use just make sure you keep all the files together. (Especially the .jar and .bat file cause .bat is only a cmd prompt)(How it feels logical)
I am fairly new to development and learning a lot. Please excuse for any mistakes if committed. Suggestions are welcome.

If you use eclipse for making your java files, you can choose to export it as a runnable jar file. I did this with my programs and I can just click on the jar and it will run just like that. This will work on both windows, as well as os x.

Making a start.bat was the only thing that worked for me.
open a text document and enter. java -jar whatever yours is called .jar
save as start.bat in the same folder as the .jar file you want to execute. and then run the. bat

If you need to run the jar file by double clicking on it, you have to create it as a "Runnable JAR". you can do it simply with your IDE.
If you're using eclipse, follow these steps :
To create a new runnable JAR file in the workbench:
1.From the menu bar's File menu, select Export.
2.Expand the Java node and select Runnable JAR file. Click Next.
3.In the Opens the Runnable JAR export wizard Runnable JAR File Specification page, select a 'Java Application' launch configuration to use to create a runnable JAR.
4.In the Export destination field, either type or click Browse to select a location for the JAR file.
5.Select an appropriate library handling strategy.
Optionally, you can also create an ANT script to quickly regenerate a previously created runnable JAR file.
more information can be found on Eclipse help Page: LINK

There are many methods for running .jar file on windows. One of them is using the command prompt.
Steps :
Open command prompt(Run as administrator)
Now write "cd\" command for root directory
Type "java jar filename.jar"
Note: you can also use any third party apps like WinRAR, jarfix, etc.

Steps:
1.) search for Java SE Runtime Environment on Google: https://www.google.com/search?q=Java+SE+Runtime+Environment
2.) install the appropriate version onto your computer

For compiling:
javac -cp ".;./mysql-connector-java-5.0.8.jar;mybatis-3.0.1.jar;ibatis-2.3.0.677.jar" MainStart.java
For running:
java -cp ".;./mysql-connector-java-5.0.8.jar;mybatis-3.0.1.jar;ibatis-2.3.0.677.jar" MainStart

use .bat file:
Put your command in a .bat file. here, your command will be java -jar path\yourJarName.jar.
Something like: java -jar C:\workspace\myApplication.jar
Save it and double click on bat file to run your jar.

Actually, I faced this problem too. I got around it by making a .bat runner for my jar file.
Here is the code:
class FileHandler{
public static File create_CMD_Rnner(){
int exitCode = -1625348952;
try{
File runner = new File(Main.batName);
PrintWriter printer = new PrintWriter(runner);
printer.println("#echo off");
printer.println("title " + Main.applicationTitle);
printer.println("java -jar " + Main.jarName + " " + Main.startCode );
printer.println("PAUSE");
printer.flush();
printer.close();
return runner;
}catch(Exception e){
System.err.println("Coudln't create a runner bat \n exit code: " + exitCode);
System.exit(exitCode);
return null;
}
}
}
Then in Your Main application class do this:
public class Main{
static String jarName = "application.jar";
static String applicationTitle = "java Application";
static String startCode = "javaIsTheBest";
static String batName = "_.bat";
public static void main(String args[]) throws Exception{
if(args.length == 0 || !args[0].equals(startCode)) {
Desktop.getDesktop().open(FilesHandler.create_CMD_Rnner());
System.exit(0);
}else{
//just in case you wanted to hide the bat
deleteRunner();
// Congratulations now you are running in a cmd window ... do whatever you want
//......
System.out.println("i Am Running in CMD");
//......
Thread.sleep(84600);
}
}
public static void deleteRunner(){
File batRunner = new File(batName);
if(batRunner.exists()) batRunner.delete();
}
}
Please Note that
this code (my code) works only with a jar file, not a class file.
the jar file must have the same name as the String "jarName" is the Main class

Develop Reference

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

mkdirs not working in windows 7 - java

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