Files
yoga/java/jni/YogaJniException.cpp
Evan Charlton 97c8bbde12 fix: Correctly resolve classes with FindClass(..) (#34533)
Summary:
`JNIEnv`'s `FindClass(..)` function takes the classes in the standard
`foo/bar/Baz` class specification (unless they're special, like arrays).
Specifying them with `Lfoo/bar/Baz;` results in a
`ClassNotFoundException` being raised -- which is especially unhelpful
when intending to re-throw an exception.

The docs for `JNIEnv#FindClass(..)` can be found [here][jnienv].

[jnienv]:
  https://docs.oracle.com/javase/7/docs/technotes/guides/jni/spec/functions.html#:~:text=The%20name%20argument,java/lang/String%22

## Changelog

[Android] [Fixed] - Correctly resolve classes with FindClass(..)

X-link: https://github.com/facebook/react-native/pull/34533

Reviewed By: amir-shalem

Differential Revision: D39133326

Pulled By: jacdebug

fbshipit-source-id: 86283b7d21aed49ed0e9027b2aef85f0108cdf9a
2022-08-30 18:49:10 -07:00

53 lines
1.5 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#include <stdexcept>
#include <string>
#include "YogaJniException.h"
#include "common.h"
namespace facebook {
namespace yoga {
namespace vanillajni {
YogaJniException::YogaJniException() {
jclass cl = getCurrentEnv()->FindClass("java/lang/RuntimeException");
static const jmethodID methodId = facebook::yoga::vanillajni::getMethodId(
getCurrentEnv(), cl, "<init>", "()V");
auto throwable = getCurrentEnv()->NewObject(cl, methodId);
throwable_ =
newGlobalRef(getCurrentEnv(), static_cast<jthrowable>(throwable));
}
YogaJniException::YogaJniException(jthrowable throwable) {
throwable_ = newGlobalRef(getCurrentEnv(), throwable);
}
YogaJniException::YogaJniException(YogaJniException&& rhs)
: throwable_(std::move(rhs.throwable_)) {}
YogaJniException::YogaJniException(const YogaJniException& rhs) {
throwable_ = newGlobalRef(getCurrentEnv(), rhs.throwable_.get());
}
YogaJniException::~YogaJniException() {
try {
throwable_.reset();
} catch (...) {
std::terminate();
}
}
ScopedLocalRef<jthrowable> YogaJniException::getThrowable() const noexcept {
return make_local_ref(
getCurrentEnv(),
static_cast<jthrowable>(getCurrentEnv()->NewLocalRef(throwable_.get())));
}
} // namespace vanillajni
} // namespace yoga
} // namespace facebook