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SO libraries not loading when running as Java web application

I searched a lot in So. But could not find a proper solution. Here is the problem
I have some .so files to load in my java application.
I created a Java class with main method and loading it using System.load();
System.load("/home/myfolder/TFS-SDK-11.0.0/redist/native/linux/x86_64/libnative_auth.so");
System.load("/home/myfolder/TFS-SDK-11.0.0/redist/native/linux/x86_64/libnative_console.so");
And then my Java codes. When I run the class as Java application, it is working fine.
Then I added the same code in my Java web application. And I run it in tomcat. But It is showing some error
Exception in thread "main" java.lang.UnsatisfiedLinkError
I found that this is because it is not loading the library files.
When I searched in google, I found some solutions but it didnt help me. I tried adding the so file location in
setenv.sh, catalina.sh in JAVA_OPTS. But none worked.
Some solutions I don't even understood.
Can someone give the step by step proces of
Where to put the so files in tomcat?
Which file I should edit and What should I add?
I searched a lot. But most answers I don't understand.

When you run your app in a web container such as Tomcat, your main method will NOT be called.
If you want to load these libraries when the container starts, then I'd suggest using a ContextListener.
Try googleing "context listener example in java" - you'll get plenty of hits and plenty of examples to follow.
You will probably also need to add these libraries on to your Unix Library Path. It's usually convenient to do this in your tomcat start up script. The name of the library path variable is unix flavour dependent, so I can't tell you what that path is I'm afraid.

Creating a folder within web server under /public_html/ in Java

I am trying to create a folder within web server using Java File handling APIs in my RESTFul web service developed using JERSEY.
According to my understanding, when I target "xyz.com" , it by default points out /home/xyz/public_html/ in my server.
So when I try to create a folder as follows
String appFolderPath = "/xyz.com/appFolder/";
File userNameFolder = new File(appFolderPath + userName);
if (!userNameFolder.exists()) {
folderPath = userNameFolder.mkdir();
}
The above code fails, I am not getting any exception, and no folder is created.
How exactly I suppose to do it ? How to give path for public_html/ folder ?
Another point is, is it not happening because of permission issue ? , I actually tried another way , I manually created /appFolder under public_html/ and give full read write permission to that folder, but still I couldn't create any folder within that using above code.
Please let me know how to achieve it ? Any Sample code ?
Also if possible let me know if JERSEY does give me APIs to make it simple ?

To point to public web directory use
ServletContext context = request.getServletContext();
String path = context.getRealPath("/");
and append your path to the path (above resolved)

According to my understanding, when I target "xyz.com" , it by default points out /home/xyz/public_html/ in my server.
What makes you think so? You're operating files in the code snippet given, so your path means /xyz.com/appFolder/ and nothing more. And it's very likely you're facing a permission issue trying to create folders like this.
As for absense of exception, that's a design feature of Java file API not to throw exceptions on certain failures, but rather return erroneous error codes. Check what is returned by mkdir() call and you'll find false there, as a signal of failure.

How to get filepath?

I am working on an Eclipse Web Dynamic Project, and trying to access a file that exists in my local machine/server.
What I am looking for is something like "base_url()" in CodeIgniter, which automatically points to the directory the server is located.
I am using a Mac.
try{
model.read(new FileInputStream(url),"");
}catch(IOException e)
{
System.out.println("Exception caught"+e.getMessage());
}
This is the part of the code I am working on, which I am trying to feed the correct URL path to read.
After searching StackOverflow and other places, I came across this piece of code:
String url = request.getRequestURL().toString().replace(request.getRequestURI().substring(1), request.getContextPath())
+"/WebContent/WEB-INF/test.xml";
Which did not seem to work.
I then tried to hard code the path directory in, only to realise that I dont know how Mac file systems work :/
Can anyone share some light on this?
Thank you in advance

I did not understand very well if you are using a servlet or something else (like a WS), however the request object exposes a method called getRealPath() which gives well... the real path of the servlet's context in your file system.
So you need to change your code with this:
String url = this.getServletContext().getRealPath("")+"/test.xml";
It has nothing to do with OS, as you surely know java is portable.

I think what you want is
String path = getServletContext().getRealPath("/");
which point to the bas directory of your application in the server
e.g. /opt/tomcat/webapps/MyApp

I always use getResourceAsStream and suck it up off of my class path. Flat file names are problematic inside of web applications.

java windows file creation

i am checking the text file which is present in the mapped hard drive or not.
File cfile = new File("R:\\Link Fixer Reports\\ServiceTest.txt");
but it shows that file is not present
when use c:\\t.txt
it shows the file
what is the problem and how can i rectify the problem?

It's likely that the user that your code is running as can't see the mapped directory.
You've tagged this question as java-ee so I'd guess that this code is running within a web service or similar? What user is your application server running as? Verify that this user can access the location. As #Christian pointed out, a UNC-Path is a better way to go - just make sure that you can access the network location. Try runas net use to double-check.

Java Desktop API not working with network paths? [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Not possible to launch a file on a network using Java Desktop?
I am trying to use the Desktop API to launch the appropriate app for a file. So i am using this :
if (Desktop.isDesktopSupported())
Desktop.getDesktop().open(new File(path));
where "path" is a String pointing to the file.
Everything works fine until i try to launch a jpg that resides at a network location (for instance "\\MyNet\folder\image.jpg") when i get an IOException :
java.io.IOException: Failed to open
file:////MyNet/folder/image.jpg
Any one knows if there is a way to fix this?

I believe you need to specify the file location/name in standard URI format - which is close to the standard format except for servers. See the javadocs for the URI Class for more information.
At the highest level a URI reference (hereinafter simply "URI") in string form has the syntax
[scheme:]scheme-specific-part[#fragment]
And a little later:
A hierarchical URI is subject to further parsing according to the syntax
[scheme:][//authority][path][?query][#fragment]
so the URI should look something like the following:
file://MyNet/folder/image.jpg
where "file://" is the protocol, "MyNet" is the server, and "/folder/image.jpg" is the directory location under the share.
Hope this helps a little.

file:////MyNet/folder/image.jpg is not a file path. It's an URL.

File f = new File("\\\\192.168.0.4\\mybookrw\\save\\command.txt");
Desktop.getDesktop().open(f);
Worked fine for me. The one caveat is that you have to be authenticated against the share already. If you paste the path into the run box and it prompts you for a username and password then its not going to work from an app.

Everyone so far has assumed that the file isn't being found.
However, looking at the Desktop open() function, an IOException is thrown
if the specified file has no associated
application or the associated
application fails to be launched
Now, having said that, what happens if you open a jpg on your local machine? Also, what happens if you try manually launching the jpg through the network?
Edit: Actually, the problem may be that the default program set to open jpg files doesn't understand file:// uris. Sticking with UNC paths might be a better choice.