fixes: unrecoverable session not found exception

[mattisonchao]

Motivation

The exception is as follow can lead the future never complete.

2025-11-10T17:02:41,628+0000 [oxia-client-1-1] WARN  io.oxia.client.session.Session - receive error when send keep-alive request
java.net.URISyntaxException: Expected authority at index 2: //
	at java.base/java.net.URI$Parser.fail(Unknown Source) ~[?:?]
	at java.base/java.net.URI$Parser.failExpecting(Unknown Source) ~[?:?]
	at java.base/java.net.URI$Parser.parseHierarchical(Unknown Source) ~[?:?]
	at java.base/java.net.URI$Parser.parse(Unknown Source) ~[?:?]
	at java.base/java.net.URI.<init>(Unknown Source) ~[?:?]
	at java.base/java.net.URI.create(Unknown Source) ~[?:?]
	at io.grpc.internal.DnsNameResolver.<init>(DnsNameResolver.java:167) ~[io.grpc-grpc-core-1.75.0.jar:1.75.0]
	at io.grpc.grpclb.GrpclbNameResolver.<init>(GrpclbNameResolver.java:57) ~[io.grpc-grpc-grpclb-1.75.0.jar:1.75.0]
	at io.grpc.grpclb.SecretGrpclbNameResolverProvider$Provider.newNameResolver(SecretGrpclbNameResolverProvider.java:73) ~[io.grpc-grpc-grpclb-1.75.0.jar:1.75.0]
	at io.grpc.grpclb.SecretGrpclbNameResolverProvider$Provider.newNameResolver(SecretGrpclbNameResolverProvider.java:52) ~[io.grpc-grpc-grpclb-1.75.0.jar:1.75.0]
	at io.grpc.internal.ManagedChannelImpl.getNameResolver(ManagedChannelImpl.java:681) ~[io.grpc-grpc-core-1.75.0.jar:1.75.0]
	at io.grpc.internal.ManagedChannelImpl.<init>(ManagedChannelImpl.java:604) ~[io.grpc-grpc-core-1.75.0.jar:1.75.0]
	at io.grpc.internal.ManagedChannelImplBuilder.build(ManagedChannelImplBuilder.java:731) ~[io.grpc-grpc-core-1.75.0.jar:1.75.0]
	at io.grpc.ForwardingChannelBuilder2.build(ForwardingChannelBuilder2.java:278) ~[io.grpc-grpc-api-1.75.0.jar:1.75.0]
	at io.oxia.client.grpc.OxiaStub.<init>(OxiaStub.java:70) ~[io.github.oxia-db-oxia-client-0.7.0.jar:?]
	at io.oxia.client.grpc.OxiaStubManager.lambda$getStub$0(OxiaStubManager.java:45) ~[io.github.oxia-db-oxia-client-0.7.0.jar:?]
	at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(Unknown Source) ~[?:?]
	at io.oxia.client.grpc.OxiaStubManager.getStub(OxiaStubManager.java:44) ~[io.github.oxia-db-oxia-client-0.7.0.jar:?]
	at io.oxia.client.grpc.OxiaStubProvider.getStubForShard(OxiaStubProvider.java:37) ~[io.github.oxia-db-oxia-client-0.7.0.jar:?]
	at io.oxia.client.session.Session.close(Session.java:188) ~[io.github.oxia-db-oxia-client-0.7.0.jar:?]
	at io.oxia.client.session.Session.handleSessionExpired(Session.java:182) ~[io.github.oxia-db-oxia-client-0.7.0.jar:?]
	at io.oxia.client.session.Session.sendKeepAlive(Session.java:141) ~[io.github.oxia-db-oxia-client-0.7.0.jar:?]
	at io.oxia.client.session.Session.lambda$new$0(Session.java:127) ~[io.github.oxia-db-oxia-client-0.7.0.jar:?]
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:?]
	at java.base/java.util.concurrent.FutureTask.runAndReset(Unknown Source) ~[?:?]
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) ~[?:?]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) ~[?:?]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) ~[?:?]
	at io.grpc.netty.shaded.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[io.grpc-grpc-netty-shaded-1.75.0.jar:1.75.0]
	at java.base/java.lang.Thread.run(Unknown Source) [?:?]

Modification

• Catch the exception and return a protected CompletableFuture

[mattisonchao]

I am considering add a test for it. :)