hotspot/src/share/vm/prims/jni.cpp
JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))
{- -------------------------------------------
(1) (デバッグ用の処理)
(See: JNIWrapper)
---------------------------------------- -}
JNIWrapper("NewObject");
{- -------------------------------------------
(1) (DTrace のフック点)
---------------------------------------- -}
DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);
{- -------------------------------------------
(1) (変数宣言など)
---------------------------------------- -}
jobject obj = NULL;
{- -------------------------------------------
(1) (DTrace のフック点)(リターン用) (See: DT_RETURN_MARK)
---------------------------------------- -}
DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);
{- -------------------------------------------
(1) alloc_object() をオブジェクトを確保し, それを JNI Handle 化しておく.
---------------------------------------- -}
instanceOop i = alloc_object(clazz, CHECK_NULL);
obj = JNIHandles::make_local(env, i);
{- -------------------------------------------
(1) 可変長引数を JNI_ArgumentPusherVaArg オブジェクトに詰め直した後,
jni_invoke_nonstatic() を呼んで指定されたコンストラクタを呼び出す.
---------------------------------------- -}
va_list args;
va_start(args, methodID);
JavaValue jvalue(T_VOID);
JNI_ArgumentPusherVaArg ap(methodID, args);
jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
va_end(args);
{- -------------------------------------------
(1) 結果をリターン
---------------------------------------- -}
return obj;
JNI_END
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