BewareMyPower commented on issue #63:
URL:
https://github.com/apache/pulsar-client-cpp/issues/63#issuecomment-1305862187
It's an incorrect use to call a synchronous API in the callback of an
asynchronous API.
For example, the following Java code also causes the deadlock.
```java
@Cleanup final var client = PulsarClient.builder()
.serviceUrl(Config.BROKER_URL)
.build();
@Cleanup final var producer = client.newProducer(Schema.STRING)
.topic("my-topic")
.create();
producer.sendAsync("hello").thenAccept(msgId -> {
try {
producer.close();
System.out.println("Producer closed");
} catch (PulsarClientException e) {
throw new RuntimeException(e);
}
}).get();
```
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