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#include <cassert>
#include <jni.h>
extern "C" JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved)
{
void* tmp;
if (vm->GetEnv(&tmp, JNI_VERSION_1_2) != JNI_OK) {
return -1;
}
// The following lines do:
//
// System.out.println("FindJNI");
//
JNIEnv* env = static_cast<JNIEnv*>(tmp);
jclass clzS = env->FindClass("java/lang/System");
jclass clzP = env->FindClass("java/io/PrintStream");
jfieldID outF = env->GetStaticFieldID(clzS, "out", "Ljava/io/PrintStream;");
jobject out = env->GetStaticObjectField(clzS, outF);
jmethodID println =
env->GetMethodID(clzP, "println", "(Ljava/lang/String;)V");
env->CallVoidMethod(out, println, env->NewStringUTF("FindJNI"));
return JNI_VERSION_1_2;
}
extern "C" JNIEXPORT void JNICALL JNI_OnUnload(JavaVM* vm, void* reserved)
{
void* env;
jint result = vm->GetEnv(&env, JNI_VERSION_1_2);
assert(result == JNI_OK);
assert(static_cast<JNIEnv*>(env)->GetVersion() == JNI_VERSION_1_2);
}
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