Impossible to create com.google.cloud.logging.LogEntry with both TextPayload and JsonPayload

[snturk]

My program perfectly send logs to Logs Explorer with Google's com.google.cloud.logging library. However, when I want to set both textPayload and jsonPayload, I can't.

If just JsonPayload is set, then I'm unable to see log's message on preview. It just shows the URL that my Cloud Function works.

However, in com.google.logging.v2.LogEntry model, I can set both textPayload and jsonPayload. In this way I cannot send logs to server because of the com.google.cloud.logging.Logging instance's write method does not accept this type of LogEntry

Steps to reproduce

1. Write a simple LogEntry build statement with JsonPayload or TextPayload (cannot do both, that's the issue)
2. Run logging.write(Collections.singleton(logEntry)); and see it display textpayload's content for preview on Logs Explorer but if you set JsonPayload, it just dont.

Code example

LogEntry logEntry =
LogEntry.newBuilder(logPayload.getPayload())
    .setLogName(GOOGLE_CLOUD_LOG_NAME)
    .setSeverity(severity)
    .setTimestamp(logPayload.getTimestamp())
    .build();
logging.write(Collections.singleton(logEntry));