try to fix build

Author: jochen-testingbot

pom.xml

@@ -53,6 +53,11 @@
       </resource>
     </resources>
     <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.13.0</version>
+      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-jar-plugin</artifactId>
@@ -201,6 +206,31 @@
         <artifactId>versions-maven-plugin</artifactId>
         <version>2.18.0</version>
       </plugin>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>exec-maven-plugin</artifactId>
+        <version>3.5.0</version>
+        <executions>
+          <!-- Smoke-test the shaded JAR after `mvn package`. Minimization can silently
+               drop reflection-loaded classes; running the version flag exercises App.main,
+               commons-cli, the version-properties resource, and logback bootstrap. -->
+          <execution>
+            <id>shaded-jar-smoke-test</id>
+            <phase>verify</phase>
+            <goals>
+              <goal>exec</goal>
+            </goals>
+            <configuration>
+              <executable>java</executable>
+              <arguments>
+                <argument>-jar</argument>
+                <argument>${project.build.directory}/${project.build.finalName}.jar</argument>
+                <argument>--version</argument>
+              </arguments>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
       <plugin>
         <groupId>org.jacoco</groupId>
         <artifactId>jacoco-maven-plugin</artifactId>