[Bug]: Milvus-java-sdk not working after packaging, gRPC-related error

[xiaojunxiang2023]

Is there an existing issue for this?

• I have searched the existing issues

Environment

Milvus Server: 2.4.11
Milvus-java-sdk: 2.4.1

Current Behavior

Here is a simple demo of the Milvus Java client that can run normally in IntelliJ IDEA:

However, after packaging it into a JAR file and running it, an error occurs:

Expected Behavior

Steps To Reproduce

pom.xml:
    <dependencies>
        <dependency>
            <groupId>io.milvus</groupId>
            <artifactId>milvus-sdk-java</artifactId>
            <version>2.4.1</version>
        </dependency>
    </dependencies>
    
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>3.5.0</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                        <configuration>
                            <descriptorRefs>
                                <descriptorRef>jar-with-dependencies</descriptorRef>
                            </descriptorRefs>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

Main.java:
  public static void main(String[] args) {
    String dbName = "default";
    String collectionName = "a";
    System.out.println("collectionName: " + collectionName);
    String proxyUri = "http://10.148.40.27:19530";
    // 创建 Client
    MilvusClientV2 client = new MilvusClientV2(ConnectConfig.builder().uri(proxyUri).dbName(dbName).build());
    DescribeCollectionReq describeCollectionReq = DescribeCollectionReq.builder()
        .collectionName(collectionName)
        .build();
    DescribeCollectionResp describeCollectionResp = client.describeCollection(describeCollectionReq);
    System.out.println(describeCollectionResp + "\n\n");
  }

Milvus Log

Exception in thread "main" io.grpc.StatusRuntimeException: UNKNOWN at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:268) at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:249) at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:167) at io.milvus.grpc.MilvusServiceGrpc$MilvusServiceBlockingStub.listDatabases(MilvusServiceGrpc.java:4621) at io.milvus.v2.utils.ClientUtils.checkDatabaseExist(ClientUtils.java:107) at io.milvus.v2.client.MilvusClientV2.connect(MilvusClientV2.java:89) at io.milvus.v2.client.MilvusClientV2.<init>(MilvusClientV2.java:60) at org.example.Main.main(Main.java:20) Caused by: java.nio.channels.UnsupportedAddressTypeException at sun.nio.ch.Net.checkAddress(Net.java:97) at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:620) at io.grpc.netty.shaded.io.netty.util.internal.SocketUtils$3.run(SocketUtils.java:91) at io.grpc.netty.shaded.io.netty.util.internal.SocketUtils$3.run(SocketUtils.java:88) at java.security.AccessController.doPrivileged(Native Method) at io.grpc.netty.shaded.io.netty.util.internal.SocketUtils.connect(SocketUtils.java:88) at io.grpc.netty.shaded.io.netty.channel.socket.nio.NioSocketChannel.doConnect(NioSocketChannel.java:322) at io.grpc.netty.shaded.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.connect(AbstractNioChannel.java:248) at io.grpc.netty.shaded.io.netty.channel.DefaultChannelPipeline$HeadContext.connect(DefaultChannelPipeline.java:1342) at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:653) at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.connect(AbstractChannelHandlerContext.java:632) at io.grpc.netty.shaded.io.netty.channel.ChannelDuplexHandler.connect(ChannelDuplexHandler.java:54) at io.grpc.netty.shaded.io.grpc.netty.WriteBufferingAndExceptionHandler.connect(WriteBufferingAndExceptionHandler.java:157) at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.invokeConnect(AbstractChannelHandlerContext.java:655) at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext.access$1000(AbstractChannelHandlerContext.java:61) at io.grpc.netty.shaded.io.netty.channel.AbstractChannelHandlerContext$9.run(AbstractChannelHandlerContext.java:637) at io.grpc.netty.shaded.io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:174) at io.grpc.netty.shaded.io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:167) at io.grpc.netty.shaded.io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:470) at io.grpc.netty.shaded.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:569) at io.grpc.netty.shaded.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) at io.grpc.netty.shaded.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) at io.grpc.netty.shaded.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) at java.lang.Thread.run(Thread.java:750)

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[yanliang567]

/assign @yhmo
/unassign