seongjae-min opened a new issue, #477:
URL: https://github.com/apache/pulsar-client-node/issues/477

   Hello, I am intermittently encountering an issue that appears to originate 
from the listener callback.
   
   ```
   FATAL ERROR: HandleScope::HandleScope Entering the V8 API without proper 
locking in place
   ----- Native stack trace -----
   
    1: 0xf410aa node::OnFatalError(char const*, char const*) [node]
    2: 0x1389184 v8::Utils::ReportApiFailure(char const*, char const*) [node]
    3: 0x138ab3e 
v8::EscapableHandleScopeBase::EscapableHandleScopeBase(v8::Isolate*) [node]
    4: 0x103cd2a napi_open_escapable_handle_scope [node]
    5: 0x7f794ed6f718  
[/app/node_modules/.pnpm/[email protected]/node_modules/pulsar-client/lib/binding/pulsar.node]
    6: 0x7f794ed9346b  
[/app/node_modules/.pnpm/[email protected]/node_modules/pulsar-client/lib/binding/pulsar.node]
    7: 0x7f794ed7b097  
[/app/node_modules/.pnpm/[email protected]/node_modules/pulsar-client/lib/binding/pulsar.node]
    8: 0x1061ab3  [node]
    9: 0x210d4c3  [node]
   10: 0x2123f6a  [node]
   11: 0x210e187 uv_run [node]
   12: 0xf8c055 node::SpinEventLoopInternal(node::Environment*) [node]
   13: 0x1119642 node::NodeMainInstance::Run() [node]
   14: 0x1058782 node::Start(int, char**) [node]
   15: 0x7f79af7fe24a  [/lib/x86_64-linux-gnu/libc.so.6]
   16: 0x7f79af7fe305 __libc_start_main [/lib/x86_64-linux-gnu/libc.so.6]
   17: 0xf8761e _start [node]
   ```
   
   I defined the listener callback as follows to handle messages asynchronously:
   ```
   await getPulsarConsumer({
       listener: async (message, messageConsumer): Promise<void> => {
         // do something
       },
     }
   ```
   


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