Results 13 issues of ZHANG Dapeng

I want to use java.util.logging to print debugging information. But the Lincheck test would fail if I add java logging in my data class. ``` > linCheck FAILED java.lang.InternalError: CallerSensitive...

bug

The ring_hash load balancer was designed in [gRFC-A42](https://github.com/grpc/proposal/blob/master/A42-xds-ring-hash-lb-policy.md) for xDS session affinity. Some users want to use ring_hash as general load balancer without being part of xDS. This might need...

enhancement