Unexpected error when server expands a compressed message to learn it is too large

When the client uses “gzip” compression to compress requests, if it sends a message where the compressed size is acceptable (less than or equal to the server’s configured max) but the uncompressed size is too large, the client receives an unhelpful UNKNOWN error with a message of “Application error processing RPC”.

Interestingly, an error is logged with an exception that indicates the expected/correct error code. It’s not a warning but an error with a message that implies the exception was never caught:

```
SEVERE: Exception while executing runnable io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1MessagesAvailable@2339b6a8
io.grpc.StatusRuntimeException: RESOURCE_EXHAUSTED: Decompressed gRPC message exceeds maximum size 204800
at io.grpc.Status.asRuntimeException(Status.java:525)
at io.grpc.internal.MessageDeframer$SizeEnforcingInputStream.verifySize(MessageDeframer.java:523)
at io.grpc.internal.MessageDeframer$SizeEnforcingInputStream.read(MessageDeframer.java:478)
at com.google.protobuf.CodedInputStream$StreamDecoder.readRawBytesSlowPathRemainingChunks(CodedInputStream.java:2967)
at com.google.protobuf.CodedInputStream$StreamDecoder.readBytesSlowPath(CodedInputStream.java:3006)
at com.google.protobuf.CodedInputStream$StreamDecoder.readBytes(CodedInputStream.java:2397)
at testing.TestRequest$Builder.mergeFrom(TestRequest.java:501)
at testing.TestRequest$1.parsePartialFrom(TestRequest.java:849)
at testing.TestRequest$1.parsePartialFrom(TestRequest.java:841)
at com.google.protobuf.AbstractParser.parseFrom(AbstractParser.java:63)
at com.google.protobuf.AbstractParser.parseFrom(AbstractParser.java:25)
at io.grpc.protobuf.lite.ProtoLiteUtils$MessageMarshaller.parseFrom(ProtoLiteUtils.java:245)
at io.grpc.protobuf.lite.ProtoLiteUtils$MessageMarshaller.parse(ProtoLiteUtils.java:237)
at io.grpc.protobuf.lite.ProtoLiteUtils$MessageMarshaller.parse(ProtoLiteUtils.java:134)
at io.grpc.MethodDescriptor.parseRequest(MethodDescriptor.java:307)
at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.messagesAvailableInternal(ServerCallImpl.java:334)
at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.messagesAvailable(ServerCallImpl.java:319)
at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1MessagesAvailable.runInContext(ServerImpl.java:834)
at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1583)
```

Start with io.grpc.internal.MessageDeframer and ServerCallImpl.ServerStreamListenerImpl, using the stack trace to follow how the decompression size exception reaches ServerImpl. Reproduce a gzip-compressed request whose decompressed size exceeds 204800, then verify that the client receives RESOURCE_EXHAUSTED instead of UNKNOWN and that the exception is no longer logged as an uncaught SEVERE error.

Scritto dal modello di indicizzazione a partire dal testo della issue.