pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>GrpcClient</groupId>
  <artifactId>GrpcClient</artifactId>
  <version>0.1</version>
  <name>GrpcClient</name>
  <description>GrpcClient</description>
  
  
  <dependencies>
		<dependency>
				<groupId>com.google.protobuf</groupId>
				<artifactId>protobuf-java</artifactId>
				<version>3.15.4</version>
		</dependency>

		<dependency>
			<groupId>io.grpc</groupId>
			<artifactId>grpc-netty-shaded</artifactId>
			<version>1.36.0</version>
		</dependency>
		<dependency>
				<groupId>io.grpc</groupId>
				<artifactId>grpc-protobuf</artifactId>
				<version>1.36.0</version>
		</dependency>
		<dependency>
			<groupId>io.grpc</groupId>
			<artifactId>grpc-stub</artifactId>
			<version>1.36.0</version>
		</dependency>
		<dependency>
			<groupId>javax.annotation</groupId>
			<artifactId>javax.annotation-api</artifactId>
			<version>1.3.2</version>
		</dependency>
	</dependencies>
	
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>
	
	<build>
		<defaultGoal>clean generate-sources compile install</defaultGoal>

		<plugins>
			<!-- compile proto file into java files. -->
			<plugin>
				<groupId>com.github.os72</groupId>
				<artifactId>protoc-jar-maven-plugin</artifactId>
				<version>3.11.4</version>
				<executions>
					<execution>
						<phase>generate-sources</phase>
						<goals>
							<goal>run</goal>
						</goals>
						<configuration>
						   <includeMavenTypes>direct</includeMavenTypes>
							
							<inputDirectories>
								<include>src/main/resources</include>
							</inputDirectories>
							
							<outputTargets>
								<outputTarget>
									<type>java</type>
									<outputDirectory>src/main/java</outputDirectory>
								</outputTarget>
								<outputTarget>
									<type>grpc-java</type>
									<pluginArtifact>io.grpc:protoc-gen-grpc-java:1.15.0</pluginArtifact>
									<outputDirectory>src/main/java</outputDirectory>
								</outputTarget>
							</outputTargets>
						</configuration>
					</execution>
				</executions>
			</plugin>

			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>3.8.1</version>
				<configuration>
					<source>11</source>
					<target>11</target>
				</configuration>
			</plugin>

			<plugin>
				<artifactId>maven-assembly-plugin</artifactId>
				<configuration>
				  <archive>
					<manifest>
					  <mainClass>grpcClient</mainClass>
					</manifest>
				  </archive>
				  <descriptorRefs>
					<descriptorRef>jar-with-dependencies</descriptorRef>
				  </descriptorRefs>
				</configuration>
				<executions>
				  <execution>
				  <id>make-assembly</id>
				  <phase>package</phase>
				  <goals>
					<goal>single</goal>
				  </goals>
				  </execution>
				</executions>
			  </plugin>

		</plugins>
	</build>

</project>