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+# Sonar Scanner Maven Plugin Integration Tests
+
+This module contains integration tests implemented via the [Apache Maven Invoker Plugin](https://maven.apache.org/plugins/maven-invoker-plugin/).
+
+The **Apache Maven Invoker Plugin** is configured in the [pom.xml](../../pom.xml) file to run the `Groovy` tests in the current directory.
+
+## Configuration
+
+The **Apache Maven Invoker Plugin** is further configured via the [Invoker Properties](https://maven.apache.org/plugins/maven-invoker-plugin/examples/invoker-properties.html), 
+i.e. [invoker.properties](invoker.properties), to run the `Sonar Scanner Maven Plugin` with the `sonar.scanner.dumpToFile` property set to _out.properties_.
+This way the output of the `Sonar Scanner Maven Plugin` is written to a file named *out.properties* and can be used in the integration tests.
+
+### Debugging the Integration Tests
+
+The **Apache Maven Invoker Plugin** copies every directory from the `src/it` directory to a`target/it` and runs the tests from there.
+For each test, the _out.properties_ file is available in the `target/it/<test-name>` directory.
+
+## Usage
+
+The integration tests are automatically run when the `mvn clean install` command is executed from the root of the project.
+
+### Run only the Maven Plugin Integration Tests
+
+```bash
+cd ../..
+mvn integration-test
+```
+
+### Run only a specific Maven Plugin Integration Test
+
+For example running the Integration Test `java-multi-module`
+
+```bash
+cd ../..
+mvn invoker:run -Dinvoker.test="java-multi-module"
+```