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passing jar file in java code

I have a function that requires the path of a jar file
builder.add(EventAnnotator.createAnnotatorDescription("/org/apache/ctakes/temporal/ae/eventannotator/model.jar"));
This refers to the jar file in my resource folder (as far as I can understand).
I have the same jar file in my maven local repo. and want to use it instead.
Is there a way to pass it as a string like this ?

well it seems we could directly use the path of the jar file, as per the structure of resources (if you put it there). Previously this wasn't working for me as I had a few other errors.

UnsatisfiedLinkError, but library is in path

I'm a little confused by this error. I'm new to Java and the error seems pretty self explanatory, but I've checked my paths (even defined my own) and it still fails to find this library. Is there something I'm doing wrong? See directory screenshot and error screenshot below:
UPDATE
UPDATE 2
If I create a new NetBeans project this works fine. Same code and everything. If I create new IntelliJ project I get this error above. I must be missing something in IntelliJ
UPDATE 3
Found the solution. Adding dependencies is a bit different in IntelliJ. Thanks all for the help.
http://www.jetbrains.com/idea/webhelp/configuring-module-dependencies-and-libraries.html

Obidisc4j is a .jar file. You just dont see its extension in the explorer.
Regular jar files are not loaded by System.loadLibrary. They are automatically loaded by the JVM's classLoader.

You are using a native library. It doen't matter if that library is in the classpath. There are 4 ways you can make the Java runtime load your shared library at runtime:
Call System.load to load the .so from an explicitly specified absolute path.
Copy the shared library to one of the paths already listed in java.library.path
Modify the LD_LIBRARY_PATH environment variable to include the directory where the shared library is located.
Specify the java.library.path on the command line by using the -D option.

Seems like your application is trying to find out a obidisc4j.dll (for Windows) or obidisc4j.so (for Linux). The file must be present on the PATH (but not the classpath). If you are not sure what PATH is your Java application searching in, you can write the following statement, before the point where the exception takes place, to find out the PATH.
System.out.println(System.getProperty("java.library.path"));
This will tell you about the paths where your DLL or SO file should be placed. You just need to place the file in ONE of those N-paths.

Need to set path as a system property for java project

I have 2 property files which are part of my java eclipse project. Now i need to pass the path of these 2 files as a system property like -Dpath1="pathfile1" as project will only accept it as a system property.
One option is that i can specify the absolute path but i want to specify a path relative to my project something like -Dpath1=$Project_Dir/resource/file1. Reason being, if project directory is moved then project will start failing.
I am using eclipse to run this project and dont want to declare any new system variable for supporting relative path, so for example dont want to create a new system variable Project_Dir . Is it possible to achieve this and how?

You can set system properties with:
System.setProperty("path1", yourPathHere);
Now, you only have to build the correct path, relative to where your project is. To do this, start off with the location of the project: How to get the path of a running JAR file?

When using setProperty, you can reference internal project files if you use a plain relative path.
E.g. to reference a file located at /abc/def/workspace/project/lib/driver.exe:
System.setProperty("driver", "lib/driver.exe");
It's deceivingly simple.

Yes, you can do it.Eclipse have build-in Path variable PROJECT_LOC, it stores location of project folder, e.x. c:\Workspace\Project1.
You can use this property in launch configuration.

where to place jar in order to run a program from command-line?

this will sound silly but i am executing my code from command prompt and have to use a jar in my class.
I have placed my jar in lib folder of JDK..
but i am still getting error of file not found
any explanation??
EDITED : guys tried all but still not working
EDIT 2 :i am trying to work as was told by this link i am using js-1.6R5.jar
Edit 3 : i undestand all the things you ppl have told but nothing working for me.. pls give me a link to upload my example that i can share with you all.
Edit 4 : i am fed up by setting classpaths but its not working... i have SDK installed in my system, do i need an extra JDK to run my programs from command prompt??

You need to add the jar to the class path by doing the following...
java -classpath D:\myprogram;D:\myprogram\lib\supportLib.jar org.mypackage.HelloWorld
Please see Wikipedia - Classpath_(Java)

You can place it anywhere, as long is you include it in your classpath. See Setting the Class Path for how to include jars in the classpath.
Have in mind that adding something in the JDK lib is almost never a good idea.

You can make a lib folder in your application's directory and put jar files there, then make your application find them by adding lib to your application's classpath.
And, don't put your jar files in JDK's lib folder. It's not good practise.

You need to let Java know that you want to include the jar in your classpath (the list of folders and jars it checks for classes). One way to do this is with the -cp command line argument, something like
java -cp ".;pathToMyJar\myJar.jar" MyClass
Another is to edit the CLASSPATH environment variable in your OS to include your jar.

A simple solution will be to place the jar fiel inside the windows folder if you are doing it in a Windows machine.

Unfortunately your question contains a lot of question signs and few information.
If you are using java.io.File to open jar as a regular file this jar should not be in lib directory. You just have to provide correct path in file system.
If however you are just trying to use jar as a part of your application it should be in classpath. Use either command line java -cp myjar.jar MyMainClassor put full path to this jar to global environment variableCLASSPATH`.

adding dll library to java using idea for using a program

I am trying to add and use a program called JVLC to my program. I downloaded a zip file that contains a jar file(jvlc.jar) for java interface and 2 dll files (jvlc.dll , libvlc.dll) and a folder that contains many dll files. when I run my program an UnsatisfiedLinkError occurs.
I used this code to add those 2 dll files to my project.
System.loadLibrary("C:\\Users\\sajad\\Documents\\Downloads\\Compressed\\JVLC\\jvlc.dll");
System.loadLibrary("C:\\Users\\sajad\\Documents\\Downloads\\Compressed\\JVLC\\libvlc.dll");
but still there is error:
UnsatisfiedLinkError: Directory
separator should not appear in library
name
Is it necessary to add all folder to library paths? If yes how?
please guide me.

The System.loadLibrary method loads a libary based on a library name (libName, without extension) and not through file name. Example, Java comes with a zip.dll / zip.so (Linux) that is used when we use the Zip Deflater/Inflater classes for zip files.
If you want to use specify a dll file name, use the System.load(String filename) method otherwise, register your DLL in a java lib path.
An example can be found here.
For your example, please do this:
//Your code....
System.loadLibrary("C:\\Users\\sajad\\Documents\\Downloads\\Compressed\\JVLC\\jvlc.dll");
System.loadLibrary("C:\\Users\\sajad\\Documents\\Downloads\\Compressed\\JVLC\\libvlc.dll");
//Replace with this...
System.load("C:\\Users\\sajad\\Documents\\Downloads\\Compressed\\JVLC\\jvlc.dll");
System.load("C:\\Users\\sajad\\Documents\\Downloads\\Compressed\\JVLC\\libvlc.dll");

According to this tutorial:
You need to set LD_LIBRARY_PATH (on Linux/Unix) or PATH (Windows) include the directory where the libraries are.
You don't need the .dll suffix.