问从JNI调用main方法失败

EN

#include <jni.h>
#include <windows.h>
#include <iostream>

class Jvm
{
private:
    JavaVM* jvm;
    JNIEnv* env;
    JavaVMInitArgs jvm_args;
    JavaVMOption* options;

public:
    Jvm();
};

Jvm::Jvm()
{
    options = new JavaVMOption[3];

    options[0].optionString = "-Djava.compiler=NONE";
    options[1].optionString = "-Djava.class.path=C:/Users/Brandon/Documents/NetBeansProjects/Loader/build/classes";
    options[2].optionString = "-verbose:class";

    jvm_args.version = JNI_VERSION_1_6;
    jvm_args.nOptions = 3;
    jvm_args.options = options;
    jvm_args.ignoreUnrecognized = false;

    //JNI_GetDefaultJavaVMInitArgs(&jvm_args);
    JNI_CreateJavaVM(&jvm, reinterpret_cast<void**>(&env), &jvm_args);

    jclass MainClass = env->FindClass("loader.Main");


    //Crashes on the next line:
    jmethodID MainMethod = env->GetStaticMethodID(MainClass, "main", "([Ljava/lang/String;)V");

    MessageBox(NULL, "", "", 0);

    Sleep(1000);

    jvm->DestroyJavaVM();
    delete[] options;
}

package loader;

public class Main {

    public static void main(String[] args) {
        //JavaProcess.exec(ClientApplet.class);
        System.out.println("Hello!");
    }
}

[Loaded loader.Main from file:/C:/Users/Brandon/Documents/NetBeansProjects/Loader/build/classes/]

Process returned -1073741571 (0xC00000FD)   execution time : 1.730 s
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