JAVA SDK调用时UNAVAILABLE: io exception
cmc命令可以部署合约，并且能用cmc调用合约，explorer也能安装。 各位大佬请帮忙 使用java sdk 调用合约时报错，具体信息见下： java.util.concurrent.ExecutionException: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception Channel Pipeline: [SslHandler#0, ProtocolNegotiators$ClientTlsHandler#0, WriteBufferingAndExceptionHandler#0, DefaultChannelPipeline$TailContext#0] at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:531) ~[guava-26.0-android.jar:na] at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:423) ~[guava-26.0-android.jar:na] at org.chainmaker.sdk.ChainClient.sendTxRequest(ChainClient.java:1918) [chainmaker-sdk-java-2.2.0.jar:na] at org.chainmaker.sdk.ChainClient.sendRequest(ChainClient.java:2070) [chainmaker-sdk-java-2.2.0.jar:na] at org.chainmaker.sdk.ChainClient.sendContractRequest(ChainClient.java:2053) [chainmaker-sdk-java-2.2.0.jar:na] at org.chainmaker.sdk.ChainClient.invokeContract(ChainClient.java:386) [chainmaker-sdk-java-2.2.0.jar:na] at chainmaker.sdk.demo.Contract.invokeContract(Contract.java:53) [classes/:na] at chainmaker.sdk.demo.DemoApplication.main(DemoApplication.java:28) [classes/:na] Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: io exception Channel Pipeline: [SslHandler#0, ProtocolNegotiators$ClientTlsHandler#0, WriteBufferingAndExceptionHandler#0, DefaultChannelPipeline$TailContext#0] at io.grpc.Status.asRuntimeException(Status.java:533) ~[grpc-api-1.23.0.jar:1.23.0] at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:490) ~[grpc-stub-1.23.0.jar:1.23.0] at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0] at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0] at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0] at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:700) ~[grpc-core-1.23.0.jar:1.23.0] at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39) ~[grpc-api-1.23.0.jar:1.23.0] at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23) ~[grpc-api-1.23.0.jar:1.23.0] at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40) ~[grpc-api-1.23.0.jar:1.23.0] at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:399) ~[grpc-core-1.23.0.jar:1.23.0] at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:510) ~[grpc-core-1.23.0.jar:1.23.0] at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:66) ~[grpc-core-1.23.0.jar:1.23.0] at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:630) ~[grpc-core-1.23.0.jar:1.23.0] at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:518) ~[grpc-core-1.23.0.jar:1.23.0] at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:692) ~[grpc-core-1.23.0.jar:1.23.0] at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:681) ~[grpc-core-1.23.0.jar:1.23.0] at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) ~[grpc-core-1.23.0.jar:1.23.0] at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) ~[grpc-core-1.23.0.jar:1.23.0] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_40] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_40] at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_40] Caused by: java.io.IOException: 远程主机强迫关闭了一个现有的连接。 at sun.nio.ch.SocketDispatcher.read0(Native Method) ~[na:1.8.0_40] at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43) ~[na:1.8.0_40] at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) ~[na:1.8.0_40] at sun.nio.ch.IOUtil.read(IOUtil.java:192) ~[na:1.8.0_40] at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) ~[na:1.8.0_40] at io.netty.buffer.PooledByteBuf.setBytes(PooledByteBuf.java:253) ~[netty-buffer-4.1.68.Final.jar:4.1.68.Final] at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1132) ~[netty-buffer-4.1.68.Final.jar:4.1.68.Final] at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:350) ~[netty-transport-4.1.68.Final.jar:4.1.68.Final] at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:151) ~[netty-transport-4.1.68.Final.jar:4.1.68.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:719) ~[netty-transport-4.1.68.Final.jar:4.1.68.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655) ~[netty-transport-4.1.68.Final.jar:4.1.68.Final] at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581) ~[netty-transport-4.1.68.Final.jar:4.1.68.Final] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[netty-transport-4.1.68.Final.jar:4.1.68.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) ~[netty-common-4.1.68.Final.jar:4.1.68.Final] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.68.Final.jar:4.1.68.Final] at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.68.Final.jar:4.1.68.Final] ... 1 common frames omitted