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    <p>Look at this: <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/UnsatisfiedLinkError.html" rel="nofollow">http://docs.oracle.com/javase/7/docs/api/java/lang/UnsatisfiedLinkError.html</a>.</p> <blockquote> <p>Thrown if the Java Virtual Machine cannot find an appropriate native-language definition of a method declared <code>native</code>.</p> </blockquote> <p>The problem is not with the JVM per se, but with the JVM being unable to find your native libraries. You need to specify the path where the native libraries are stored. This can be done by adding the following as an argument to your JVM in eclipse:</p> <pre><code>-Djava.library.path=... </code></pre> <p>Here, take a look at this: <a href="http://mindprod.com/jgloss/runerrormessages.html#UNSATISFIEDLINKERROR" rel="nofollow">http://mindprod.com/jgloss/runerrormessages.html#UNSATISFIEDLINKERROR</a></p> <blockquote> <p><li> If you get the error after the class containing the native method is safely loaded, when you invoke a native method, make sure you generated your <code>*.h</code> file with the fully qualified <b><code>javah.exe -jni -o mouse.h com.mindprod.mouse.Mouse</code></b> and not simply <b><code>javah Mouse</code></b> <li> If you get the error after the class containing the native method is safely loaded, when you invoke a native method, check that the <code>*.cpp</code> method signatures exactly match those in the <code>*.h</code> file. You should see method names like this: <b><code>Java_com_mindprod_mouse_Mouse_GetMousePosition</code></b> that start with the word Java and contain the package, class and method name all strung together. Make sure you remembered to implement all the methods. <li> You need to regenerate the <code>*.h</code> and recompile the <code>*.c</code> file if you change the package name.</p> </blockquote> <p>You should probably go through this list to make sure you're doing all the things correctly.</p>
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    1. COThank you, I'm new to using native methods. the actual unsatisfied link error is listing the native method I'm trying to call in the error itself. Exception in thread "main" java.lang.UnsatisfiedLinkError: com.this.xda.MyClass.MyMethod()[Ljava/lang/String; Even though its specifying the native method do you still think it cannot find the native library or could it be something else. Because it was working in eclipse while using another JVM but when I upgraded to JDK 7 it stopped. And I tried going back to the old JDK and it hasn't helped.
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    2. COThe problem is that it's found the declaration of the native method in your Java code but can't find the implementation in native code (i.e., the library in which this method is implemented). Are you working on the exact same project in Eclipse that you were working on with the previous JDK? It's likely that your previous project configuration had specified the `java.library.path` argument somewhere but the new one hasn't... have you checked that?
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    3. COI was able to run it on fresh installs of eclipse which was grabbing the JRE found by searching the path which ended up being an older 1.6 version. No other settings were changed and it would "just work". if I put a print statement it does load the library without error. the error comes when it actually tries to use it.
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