107 [[maybe_unused]] static jmethodID FindMethod(JNIEnv* env, const char* className,  in FindMethod()  argument
111     jclass clazz = env->FindClass(className);  in FindMethod()
112     jmethodID methodId = env->GetMethodID(clazz, methodName, descriptor);  in FindMethod()
113     env->DeleteLocalRef(clazz);  in FindMethod()
117 [[maybe_unused]] static bool AppendJString(JNIEnv* env, jstring text,  in AppendJString()  argument
119     const char* utfText = env->GetStringUTFChars(text, NULL);  in AppendJString()
124     env->ReleaseStringUTFChars(text, utfText);  in AppendJString()
133 [[maybe_unused]] static bool GetExceptionSummary(JNIEnv* env, jthrowable thrown,  in GetExceptionSummary()  argument
136     jclass exceptionClass = env->GetObjectClass(thrown); // Always succeeds  in GetExceptionSummary()
137     jmethodID getName = FindMethod(env, "java/lang/Class", "getName", "()Ljava/lang/String;");  in GetExceptionSummary()
138     jstring className = (jstring)env->CallObjectMethod(exceptionClass, getName);  in GetExceptionSummary()
141         env->ExceptionClear();  in GetExceptionSummary()
142         env->DeleteLocalRef(exceptionClass);  in GetExceptionSummary()
145     env->DeleteLocalRef(exceptionClass);  in GetExceptionSummary()
148     if (!AppendJString(env, className, dst)) {  in GetExceptionSummary()
150         env->ExceptionClear();  in GetExceptionSummary()
151         env->DeleteLocalRef(className);  in GetExceptionSummary()
154     env->DeleteLocalRef(className);  in GetExceptionSummary()
158             FindMethod(env, "java/lang/Throwable", "getMessage", "()Ljava/lang/String;");  in GetExceptionSummary()
159     jstring message = (jstring)env->CallObjectMethod(thrown, getMessage);  in GetExceptionSummary()
164     bool success = (ExpandableStringAppend(dst, ": ") && AppendJString(env, message, dst));  in GetExceptionSummary()
175         env->ExceptionClear();  in GetExceptionSummary()
177     env->DeleteLocalRef(message);  in GetExceptionSummary()
182 [[maybe_unused]] static jobject NewStringWriter(JNIEnv* env) {  in NewStringWriter()  argument
183     jclass clazz = env->FindClass("java/io/StringWriter");  in NewStringWriter()
184     jmethodID init = env->GetMethodID(clazz, "<init>", "()V");  in NewStringWriter()
185     jobject instance = env->NewObject(clazz, init);  in NewStringWriter()
186     env->DeleteLocalRef(clazz);  in NewStringWriter()
190 [[maybe_unused]] static jstring StringWriterToString(JNIEnv* env, jobject stringWriter) {  in StringWriterToString()  argument
192             FindMethod(env, "java/io/StringWriter", "toString", "()Ljava/lang/String;");  in StringWriterToString()
193     return (jstring)env->CallObjectMethod(stringWriter, toString);  in StringWriterToString()
196 [[maybe_unused]] static jobject NewPrintWriter(JNIEnv* env, jobject writer) {  in NewPrintWriter()  argument
197     jclass clazz = env->FindClass("java/io/PrintWriter");  in NewPrintWriter()
198     jmethodID init = env->GetMethodID(clazz, "<init>", "(Ljava/io/Writer;)V");  in NewPrintWriter()
199     jobject instance = env->NewObject(clazz, init, writer);  in NewPrintWriter()
200     env->DeleteLocalRef(clazz);  in NewPrintWriter()
204 [[maybe_unused]] static bool GetStackTrace(JNIEnv* env, jthrowable thrown,  in GetStackTrace()  argument
212     jobject sw = NewStringWriter(env);  in GetStackTrace()
217     jobject pw = NewPrintWriter(env, sw);  in GetStackTrace()
219         env->DeleteLocalRef(sw);  in GetStackTrace()
224             FindMethod(env, "java/lang/Throwable", "printStackTrace", "(Ljava/io/PrintWriter;)V");  in GetStackTrace()
225     env->CallVoidMethod(thrown, printStackTrace, pw);  in GetStackTrace()
227     jstring trace = StringWriterToString(env, sw);  in GetStackTrace()
229     env->DeleteLocalRef(pw);  in GetStackTrace()
231     env->DeleteLocalRef(sw);  in GetStackTrace()
238     bool success = AppendJString(env, trace, dst);  in GetStackTrace()
239     env->DeleteLocalRef(trace);  in GetStackTrace()
243 [[maybe_unused]] static void GetStackTraceOrSummary(JNIEnv* env, jthrowable thrown,  in GetStackTraceOrSummary()  argument
251     jthrowable pendingException = env->ExceptionOccurred();  in GetStackTraceOrSummary()
253         env->ExceptionClear();  in GetStackTraceOrSummary()
264     if (!GetStackTrace(env, thrown, dst)) {  in GetStackTraceOrSummary()
266         env->ExceptionClear();  in GetStackTraceOrSummary()
267         GetExceptionSummary(env, thrown, dst);  in GetStackTraceOrSummary()
272         env->Throw(pendingException);  in GetStackTraceOrSummary()
273         env->DeleteLocalRef(pendingException);  in GetStackTraceOrSummary()
277 [[maybe_unused]] static void DiscardPendingException(JNIEnv* env, const char* className) {  in DiscardPendingException()  argument
278     jthrowable exception = env->ExceptionOccurred();  in DiscardPendingException()
279     env->ExceptionClear();  in DiscardPendingException()
286     GetExceptionSummary(env, exception, &summary);  in DiscardPendingException()
291     env->DeleteLocalRef(exception);  in DiscardPendingException()
294 [[maybe_unused]] static int ThrowException(JNIEnv* env, const char* className, const char* ctorSig,  in ThrowException()  argument
302     DiscardPendingException(env, className);  in ThrowException()
308         exceptionClass = env->FindClass(className);  in ThrowException()
316         jmethodID init = env->GetMethodID(exceptionClass, "<init>", ctorSig);  in ThrowException()
323         jobject instance = env->NewObjectV(exceptionClass, init, args);  in ThrowException()
330         if (env->Throw((jthrowable)instance) != JNI_OK) {  in ThrowException()
343         env->DeleteLocalRef(exceptionClass);  in ThrowException()
348 [[maybe_unused]] static jstring CreateExceptionMsg(JNIEnv* env, const char* msg) {  in CreateExceptionMsg()  argument
349     jstring detailMessage = env->NewStringUTF(msg);  in CreateExceptionMsg()
353         env->ExceptionClear();  in CreateExceptionMsg()
363 [[maybe_unused]] static int jniRegisterNativeMethods(JNIEnv* env, const char* className,  in jniRegisterNativeMethods()  argument
367     jclass clazz = env->FindClass(className);  in jniRegisterNativeMethods()
373     int result = env->RegisterNatives(clazz, methods, numMethods);  in jniRegisterNativeMethods()
374     env->DeleteLocalRef(clazz);  in jniRegisterNativeMethods()
381     jthrowable thrown = env->ExceptionOccurred();  in jniRegisterNativeMethods()
385         if (GetExceptionSummary(env, thrown, &summary)) {  in jniRegisterNativeMethods()
389         env->DeleteLocalRef(thrown);  in jniRegisterNativeMethods()
410 [[maybe_unused]] static int jniThrowException(JNIEnv* env, const char* className, const char* msg) {  in jniThrowException()  argument
412     jstring _detailMessage = CreateExceptionMsg(env, msg);  in jniThrowException()
413     int _status = ThrowException(env, className, "(Ljava/lang/String;)V", _detailMessage);  in jniThrowException()
415         env->DeleteLocalRef(_detailMessage);  in jniThrowException()
423 [[maybe_unused]] static int jniThrowErrnoException(JNIEnv* env, const char* functionName,  in jniThrowErrnoException()  argument
426     jstring _detailMessage = CreateExceptionMsg(env, functionName);  in jniThrowErrnoException()
427     int _status = ThrowException(env, "android/system/ErrnoException", "(Ljava/lang/String;I)V",  in jniThrowErrnoException()
430         env->DeleteLocalRef(_detailMessage);  in jniThrowErrnoException()
449 [[maybe_unused]] static int jniThrowExceptionFmt(JNIEnv* env, const char* className,  in jniThrowExceptionFmt()  argument
456     return jniThrowException(env, className, msgBuf);  in jniThrowExceptionFmt()
459 [[maybe_unused]] static int jniThrowNullPointerException(JNIEnv* env, const char* msg) {  in jniThrowNullPointerException()  argument
460     return jniThrowException(env, "java/lang/NullPointerException", msg);  in jniThrowNullPointerException()
463 [[maybe_unused]] static int jniThrowRuntimeException(JNIEnv* env, const char* msg) {  in jniThrowRuntimeException()  argument
464     return jniThrowException(env, "java/lang/RuntimeException", msg);  in jniThrowRuntimeException()
467 [[maybe_unused]] static int jniThrowIOException(JNIEnv* env, int errno_value) {  in jniThrowIOException()  argument
471     return jniThrowException(env, "java/io/IOException", message);  in jniThrowIOException()
478 [[maybe_unused]] static inline jstring jniCreateString(JNIEnv* env, const jchar* unicodeChars,  in jniCreateString()  argument
480     return env->NewString(unicodeChars, len);  in jniCreateString()
483 [[maybe_unused]] static inline jstring jniCreateString(JNIEnv* env, const char16_t* unicodeChars,  in jniCreateString()  argument
485     return jniCreateString(env, reinterpret_cast<const jchar*>(unicodeChars), len);  in jniCreateString()
492 [[maybe_unused]] static void jniLogException(JNIEnv* env, int priority, const char* tag,
497     GetStackTraceOrSummary(env, exception, &summary);
507 int jniRegisterNativeMethods(JNIEnv* env, const char* className, const JNINativeMethod* gMethods,
510 void jniLogException(JNIEnv* env, int priority, const char* tag, jthrowable thrown);
512 int jniThrowException(JNIEnv* env, const char* className, const char* msg);
514 int jniThrowNullPointerException(JNIEnv* env, const char* msg);