问题现象

崩溃调用栈如下：

#00 pc 0000000001d2cfa8 /system/lib64/ndk/libjsvm.so(v8::base::OS::Abort()+28)
#01 pc 0000000001d21bfc /system/lib64/ndk/libjsvm.so(V8_Fatal(char const*, ...)+384)
#02 pc 000000000159ba30 /system/lib64/ndk/libjsvm.so(v8::internal::(anonymous namespace)::Invoke(v8::internal::Isolate*, v8::internal::(anonymous namespace)::InvokeParams const&)+2952)
#03 pc 000000000159ae24 /system/lib64/ndk/libjsvm.so(v8::internal::Execution::Call(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, int, v8::internal::Handle<v8::internal::Object>*)+96)
#04 pc 0000000001432154 /system/lib64/ndk/libjsvm.so(v8::Function::Call(v8::Local<v8::Context>, v8::Local<v8::Value>, int, v8::Local<v8::Value>*)+384)
#05 pc 0000000000c6e3e0 /system/lib64/ndk/libjsvm.so(OH_JSVM_CallFunction+348)
........
#24 pc 0000000000c77df8 /system/lib64/ndk/libjsvm.so(JSVM_Env__::CallFinalizer(void (*)(JSVM_Env__*, void*, void*), void*, void*)+96)
#25 pc 0000000000c65f5c /system/lib64/ndk/libjsvm.so(non-virtual thunk to v8impl::Reference::Finalize()+108)
#26 pc 0000000000c65fdc /system/lib64/ndk/libjsvm.so(v8impl::Reference::WeakCallback(v8::WeakCallbackInfo<v8impl::Reference> const&)+76)

原因分析

目前JSVM注册的Finalizer方法中不允许JS代码的执行，在上述崩溃调用栈中，Finalizer方法中调用了OH_JSVM_CallFunction执行了JS代码。

解决措施

Finalizer中，只进行和JS对象生命周期绑定的原生对象的清理，不调用JSVM API。如需实现JS对象生命周期结束后执行一段JS代码的功能，可在Finalizer方法中，将相关代码的执行加入到外层事件循环队列中，等待下次事件循环时调用相关代码，从而实现时间序列上的先后顺序。