matlab调用Findclass JNI崩溃

我正在尝试使用JNI从simulink Matlab调用java方法。我用C++开发了一个小代码，它调用了一个主方法，该方法只在屏幕上打印helloworld作为第一个测试，但在它调用来查找类的那一行，matlab崩溃了。C++代码是这样的：

#include <stdio.h>
#include <jni.h>
#include "mex.h"
class MatlabAmbassador {
public:
    MatlabAmbassador ();
    //Destructor
   ~MatlabAmbassador ();
    void run();
      JNIEnv* create_vm() ;
    void invoke_class(JNIEnv* env);   
private:
}; // end class
MatlabAmbassador::MatlabAmbassador() {
}
MatlabAmbassador::~MatlabAmbassador() {
}

// -------------------------------------------------------------------------
JNIEnv* MatlabAmbassador::create_vm() {
    JavaVM* jvm;
JNIEnv* env;
JavaVMInitArgs args;
JavaVMOption options[1];
long status;
/* There is a new JNI_VERSION_1_4, but it doesn't add anything for the purposes of our example. */
args.version = JNI_VERSION_1_6;
args.nOptions = 1;
    options[0].optionString = "-Djava.class.path=C:\Apps\Projetos em java\Portico\Portico_Agent\bin";
args.options = options;
args.ignoreUnrecognized = JNI_FALSE;
 status=JNI_CreateJavaVM(&jvm, (void **)&env, &args);
return env;
}
// -------------------------------------------------------------------------
void MatlabAmbassador::invoke_class(JNIEnv* env) {
jclass helloWorldClass;
jmethodID mainMethod;
jobjectArray applicationArgs;
jstring applicationArg0;
  mexPrintf("Firstn");
    helloWorldClass = env->FindClass("Teste");  <--- MATLAB CRASHES HERE
    mexPrintf("secondn");
    if (env->ExceptionOccurred()) { 
 env->ExceptionDescribe(); 
 env->ExceptionClear() ;
 } 
     if ( helloWorldClass == NULL ) {
        mexPrintf( "%s%sn", "Unable to obtain class reference for ", 
 helloWorldClass );
        return;
    } else {
        mexPrintf( "%s%sn", "Sucessfully created class reference for ", 
helloWorldClass );
    }
    mainMethod = env->GetStaticMethodID( helloWorldClass, "main", "([Ljava/lang/String;)V");
    applicationArgs = env->NewObjectArray(1, env->FindClass("java/lang/String"), NULL);
    applicationArg0 = env->NewStringUTF( "From-C-program");
    env->SetObjectArrayElement( applicationArgs, 0, applicationArg0);
    env->CallStaticVoidMethod( helloWorldClass, mainMethod, applicationArgs); 
}
// -------------------------------------------------------------------------
void MatlabAmbassador::run() {
 char str [80];
 mexPrintf(" INITIALIZING....n" );
    JNIEnv* env = create_vm();
    invoke_class( env );

}
 // -------------------------------------------------------------------------

Simulink Matlab有一些方法可以使用。其中一个方法用于调用上面描述的方法run（）。下面是一段代码：

static void mdlStart(SimStruct *S)
{
    char *buf;
    size_t buflen;
    int status;
   buflen = mxGetN((ssGetSFcnParam(S, 2)))*sizeof(mxChar)+1 ; // le o 3o parametro passado pela     funcao (nome do arq)
   buf = (char *)mxMalloc(buflen); // aloca memoria
   status = mxGetString((ssGetSFcnParam(S, 2)), buf,(mwSize)buflen);
 ssGetPWork(S)[0] = (void *) new MatlabAmbassador; // store new C++ object in the
MatlabAmbassador *c = (MatlabAmbassador *) ssGetPWork(S)[0];
c->run();

简单的java代码是：

public class Teste 
{
  public static void main(String[] args)
  {
      System.out.println(" INITALIZING...");

  }
}

那么，有人能解释我遗漏了什么吗？或者解释在Matlab中调用JNI是否存在真正的问题。Matlab版本为2011b，安装的java版本为JDK 1.0.6_45。

如有任何帮助，我将不胜感激。

致以最良好的问候安德雷·努德尔andre.nudel@gmail.com