How to add an annotation to exclude a method from a jacoco code coverage report?

How to add an annotation to exclude a method from a jacoco code coverage report?

To exclude a method from a JaCoCo code coverage report, you can use the @ExcludeFromCodeCoverage annotation provided by JaCoCo. This annotation allows you to mark specific methods or classes that you want to exclude from code coverage analysis. Here's how you can use it:

  • Add JaCoCo as a dependency to your project. You typically do this in your build tool's configuration. For example, in a Maven project, you can add the following dependency to your pom.xml:
<dependency> <groupId>org.jacoco</groupId> <artifactId>org.jacoco.agent</artifactId> <version>0.8.7</version> <!-- Use the appropriate version --> <scope>runtime</scope> </dependency>
  • Ensure that JaCoCo is configured to generate code coverage reports as part of your build process. This can vary depending on your build tool and project setup. For example, in a Maven project, you can configure the jacoco-maven-plugin in your pom.xml:
<build> <plugins> <plugin> <groupId>org.jacoco</groupId> <artifactId>jacoco-maven-plugin</artifactId> <version>0.8.7</version> <!-- Use the appropriate version --> <executions> <execution> <goals> <goal>prepare-agent</goal> </goals> </execution> <execution> <id>report</id> <phase>prepare-package</phase> <goals> <goal>report</goal> </goals> </execution> </executions> </plugin> </plugins> </build>
  • In your code, add the @ExcludeFromCodeCoverage annotation to the method you want to exclude from code coverage analysis. Import the annotation if necessary:
import org.jacoco.agent.rt.*; // Import the annotation package public class MyClass { @ExcludeFromCodeCoverage // Add this annotation to exclude the method public void methodToExclude() { // Your code here } // Other methods }
  • After configuring JaCoCo and marking the method with the @ExcludeFromCodeCoverage annotation, run your test suite or any code coverage analysis task.

The method marked with @ExcludeFromCodeCoverage will be excluded from the code coverage report, and its coverage information won't be included in the report's calculations.

Remember to use this feature judiciously, as excluding methods from code coverage analysis should typically be done for valid reasons, such as for test utility methods or code that you're confident does not need coverage analysis.

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