（原）不明白JNI指针调用顺序

很不明白JNI里面获取指针的顺序（可能这样描述不太恰当吧）。

下面按照传入指针的顺序的代码一跑就崩溃。如下：

 1 JNIEXPORT jint JNICALL Java_com_example_X_XX_XXX
 2   (JNIEnv * env, jclass, jbyteArray databuf, jint width, jint height, jstring path, jintArray x1)
 3 {
 4     jboolean* pArraydata = (jboolean*)env->GetPrimitiveArrayCritical(databuf, 0);
 5     char* pApath=env->GetStringUTFChars(path,0);
 6     jint* pAx1 = (jint*)env->GetPrimitiveArrayCritical(x1, 0);
 7
 8     // code;
 9
10     env->ReleasePrimitiveArrayCritical(databuf, pArraydata, 0);
11     env->ReleaseStringUTFChars(path, pApath);
12     env->ReleasePrimitiveArrayCritical(x1, pAx1, 0);
13
14     return eyedist;
15 }

之后将获取指针的顺序稍微修改了一下，然后就可以跑过去了。如下：

 1 JNIEXPORT jint JNICALL Java_com_example_X_XX_XXX
 2   (JNIEnv * env, jclass, jbyteArray databuf, jint width, jint height, jstring path, jintArray x1)
 3 {
 4     jboolean* pArraydata = (jboolean*)env->GetPrimitiveArrayCritical(databuf, 0);
 5     jint* pAx1 = (jint*)env->GetPrimitiveArrayCritical(x1, 0);
 6     char* pApath=env->GetStringUTFChars(path,0);
 7
 8     // code;
 9
10     env->ReleasePrimitiveArrayCritical(databuf, pArraydata, 0);
11     env->ReleasePrimitiveArrayCritical(x1, pAx1, 0);
12     env->ReleaseStringUTFChars(path, pApath);
13
14     return eyedist;
15 }