Merge pull request #323 from groovy/mockito-agent

Add Mockito agent jar to avoid warning with Java 21+

Author: keeganwitt

pom.xml

@@ -218,6 +218,13 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>
         <version>${dependencyPluginVersion}</version>
+        <executions>
+          <execution>
+            <goals>
+              <goal>properties</goal>
+            </goals>
+          </execution>
+        </executions>
       </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
@@ -303,6 +310,9 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
         <version>${surefirePluginVersion}</version>
+        <configuration>
+          <argLine>@{argLine} -javaagent:${org.mockito:mockito-core:jar}</argLine>
+        </configuration>
       </plugin>
       <plugin>
         <groupId>org.jacoco</groupId>