Solved

What does this error mean: Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: no nitf.jni-c in java.library.path ?

Posted on 2008-09-30
9
1,639 Views
Last Modified: 2013-11-23
Hi,
 
   I'm writing a Java program and when I call a method that is included in a jar library, I get the following error:

Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: no nitf.jni-c in java.library.path


  Any idea on what this error means?

Thanks!
0
Comment
Question by:pbenito
  • 4
  • 3
  • 2
9 Comments
 
LVL 23

Expert Comment

by:cmalakar
ID: 22607526
>> java.lang.UnsatisfiedLinkError: no nitf.jni-c in java.library.path

Means a library file is missing the java library path.. If you know.. the library..
then add the library to the java.library.path as follows.. when you start the java program.

java -Djava.library.path=PathToYourLibrary ProgramName
0
 

Author Comment

by:pbenito
ID: 22607628
How do I do this in NetBeans?
0
 
LVL 23

Expert Comment

by:cmalakar
ID: 22607657
instead.. you can also do this..

In the first line of main function.. write..

System.setProperty("java.library.path", "PathToYourLibrary");
0
 

Author Comment

by:pbenito
ID: 22608113
I used the System.setProperty method and I get the same error.
0
Why You Should Analyze Threat Actor TTPs

After years of analyzing threat actor behavior, it’s become clear that at any given time there are specific tactics, techniques, and procedures (TTPs) that are particularly prevalent. By analyzing and understanding these TTPs, you can dramatically enhance your security program.

 
LVL 9

Expert Comment

by:mbodewes
ID: 22608754
cmalaker, the setProperty method does not work. The default classloader won't notice changes in the java.library.path property. The -D option does work obviously. You could also put the library in the default windows path. Either add a folder to the windows path to store the library, or in extreme cases put the .dll in the windows folder or the bin folder of your Java runtime.
0
 

Author Comment

by:pbenito
ID: 22608859
I tried both options and I keep getting the same error.....any other ideas?
0
 
LVL 9

Accepted Solution

by:
mbodewes earned 500 total points
ID: 22609900
In netbeans, you should be able to pass the -Djava.library.path to the JVM. The property should be set to the path *excluding* the name of the file itself. The file itself should be called <libraryname>.dll (assuming windows) or <libraryname>.so in Linux. I presume you have found the .dll, can you explain what exact options you have tried?

Optionally, the library could also be loaded using the full path to the library from the .jar. In this case you will have to see the documentation of whoever supplied the jar library to you.
0
 

Author Comment

by:pbenito
ID: 22614020
That worked!!!  Why did I have to reference a .dll file?  I thought that Java doesn't use DLLs?
0
 
LVL 9

Expert Comment

by:mbodewes
ID: 22615288
"That worked!!!  Why did I have to reference a .dll file?  I thought that Java doesn't use DLLs?"

Java may use libraries to do native (as in "native to the operating system"). Without an interface to the operating system, there is very little Java can do. It would not be able to read files, create network sockets, create windows etc. etc. . Of course, the base JVM will make sure that the most common options like the ones I've mentioned are present for all platforms. For new platforms, this functionality will have to be provided.

That still leaves an awful lot of functionality that is not directly available within the Java runtime. Much of it you will never need, or can be recreated in the Java language itself. But if you want to access OS functionality (i.e. drivers) or CPU functionality (i.e. SSE "multimedia" instructions) directly, you will still need native code. This native code can be supplied in JNI compatible .dll's. This is what you are currently configuring.
0

Featured Post

What Security Threats Are You Missing?

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

Join & Write a Comment

Suggested Solutions

By the end of 1980s, object oriented programming using languages like C++, Simula69 and ObjectPascal gained momentum. It looked like programmers finally found the perfect language. C++ successfully combined the object oriented principles of Simula w…
Introduction Java can be integrated with native programs using an interface called JNI(Java Native Interface). Native programs are programs which can directly run on the processor. JNI is simply a naming and calling convention so that the JVM (Java…
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…

758 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now