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JNI calls in the Groovy/Grails Application.  RSS feed

satya kiran
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I've created the dll file and loading that from the Controller class by calling the system.loadLibrary("test.dll"); The same class is working fine if i create a standalone java application.

When executed, i am getting UnsatisfiedLink Error. I've the below questions.

1. Where should i set the -Djava option so that grails looks at the correct location for the dll.
2. If my controller has package name and the java class that has the native calls does not contain any package name, is it going to be of any issue?
3. Any other suggestions.

Here is what i am trying to do:


package com.abc.test.control;

class TestController {

static {

def validateJni ={

Test test = new Test() // Java class that has jni calls



public class Test {

// used to hold the C++ object pointer
private long Tesetobj;

// create native object
private native long create();

public Test() {
Testobj = create();



I am getting below error:

org.codehaus.groovy.runtime.InvokerInvocationException: java.lang.UnsatisfiedLinkError: Test.create()J

at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:92)

at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:234)

at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1062)

Thanks in advance for your help.


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