pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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>se.nordnet</groupId>
    <artifactId>protobuf-issue</artifactId>
    <name>protobuf-issue</name>
    <version>1.0.0</version>

    <properties>
        <java.version>21</java.version>
        <maven.compiler.source>${java.version}</maven.compiler.source>
        <maven.compiler.target>${java.version}</maven.compiler.target>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!-- https://cloud.google.com/java/docs/bom -->
            <dependency>
                <groupId>com.google.cloud</groupId>
                <artifactId>libraries-bom</artifactId>
                <version>26.55.0</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!-- Downgrading to protobuf3 seems to fix the problem -->
<!--            <dependency>-->
<!--                <groupId>com.google.cloud</groupId>-->
<!--                <artifactId>libraries-bom-protobuf3</artifactId>-->
<!--                <version>26.55.0</version>-->
<!--                <type>pom</type>-->
<!--                <scope>import</scope>-->
<!--            </dependency>-->

        </dependencies>
    </dependencyManagement>

    <dependencies>

        <!-- Here it is possible to select low-level dependencies, we've opted to use deps from the original issue  -->
        <!-- 2025-03-04: Updated to 5.11.1 to verify that the issue remains in the latest version -->
<!--        <dependency>-->
<!--            <groupId>com.google.cloud</groupId>-->
<!--            <artifactId>spring-cloud-gcp-starter-pubsub</artifactId>-->
<!--            <version>5.11.1</version>-->
<!--        </dependency>-->
<!--        <dependency>-->
<!--            <groupId>com.google.cloud</groupId>-->
<!--            <artifactId>spring-cloud-gcp-starter-trace</artifactId>-->
<!--            <version>5.11.1</version>-->
<!--        </dependency>-->
        <dependency>
            <groupId>com.google.api.grpc</groupId>
            <artifactId>proto-google-cloud-pubsub-v1</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.api.grpc</groupId>
            <artifactId>proto-google-cloud-trace-v2</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>3.3.0</version>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>se.nordnet.protobuf.ProtobufTester</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>