无网状态下，SDK初始化时会抛出异常，应用捕获不到

java.net.SocketTimeoutException: failed to connect to api.coze.cn/221.8.93.168 (port 443) from /10.245.3.40 (port 38488) after 5000ms
at libcore.io.IoBridge.connectErrno(IoBridge.java:236)
at libcore.io.IoBridge.connect(IoBridge.java:180)
at java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:142)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:390)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:230)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:212)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:436)
at java.net.Socket.connect(Socket.java:621)
at okhttp3.internal.platform.Platform.connectSocket(Platform.kt:1)
at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.kt:9)
at okhttp3.internal.connection.RealConnection.connect(RealConnection.kt:16)
at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.kt:38)
at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.kt:1)
at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.kt:7)
at okhttp3.internal.connection.RealCall.initExchange$okhttp(RealCall.kt:7)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:2)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:12)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:27)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:12)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:22)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:12)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:7)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:12)
at com.coze.openapi.service.utils.UserAgentInterceptor.intercept(UserAgentInterceptor.java:6)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:12)
at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:16)
at okhttp3.internal.connection.RealCall.execute(RealCall.kt:5)
at retrofit2.OkHttpCall.execute(OkHttpCall.java:8)
at retrofit2.adapter.rxjava2.CallExecuteObservable.subscribeActual(CallExecuteObservable.java:5)
at io.reactivex.Observable.subscribe(Observable.java:14)
at io.reactivex.internal.operators.observable.ObservableSingleSingle.subscribeActual(ObservableSingleSingle.java:1)
at io.reactivex.Single.subscribe(Single.java:13)
at io.reactivex.Single.blockingGet(Single.java:2)
at com.coze.openapi.service.auth.OAuthClient.execute(OAuthClient.java:1)
at com.coze.openapi.service.auth.OAuthClient.getAccessToken(OAuthClient.java:5)
at com.coze.openapi.service.auth.JWTOAuthClient.doGetAccessToken(JWTOAuthClient.java:25)
at com.coze.openapi.service.auth.JWTOAuthClient.getAccessToken(JWTOAuthClient.java:13)
at com.coze.openapi.service.auth.JWTOAuth.token(JWTOAuth.java:11)
at com.coze.openapi.service.service.AuthenticationInterceptor.intercept(AuthenticationInterceptor.java:5)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:12)
at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:16)
at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt:6)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:920)

Reproduce the SDK initialization while offline and trace the call path from AuthenticationInterceptor through JWTOAuth, JWTOAuthClient, and OAuthClient.getAccessToken. Check how the SocketTimeoutException from the OkHttp and RxJava chain propagates during initialization; done means the application can receive and handle the offline failure instead of an uncaught exception.

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