[jira] [Created] (MENFORCER-473) Custom Rules are not processed with Java 17

["Nils Christian Ehmke (Jira)" <ji...@apache.org>]

Nils Christian Ehmke created MENFORCER-473:
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             Summary: Custom Rules are not processed with Java 17
                 Key: MENFORCER-473
                 URL: https://issues.apache.org/jira/browse/MENFORCER-473
             Project: Maven Enforcer Plugin
          Issue Type: Bug
          Components: externalRules, Plugin, Rule API
    Affects Versions: 3.2.1
         Environment: Windows, Java 17
            Reporter: Nils Christian Ehmke


Hi,

We noticed that our custom rule, using the newer API (as documented [here)|https://maven.apache.org/enforcer/enforcer-api/writing-a-custom-rule.html] is not processed using Java 17.

We created a sample project using the custom rule example. Once we use Java 17 in the pom.xml it breaks.

{code:java}
<properties>
	<api.version>3.2.1</api.version>
	<maven.version>3.9.0</maven.version>
	<!-- use JDK 1.8 at least -->
	<maven.compiler.source>17</maven.compiler.source>
	<maven.compiler.target>17</maven.compiler.target>
</properties>
...
<plugin>
	<groupId>org.apache.maven.plugins</groupId>
	<artifactId>maven-compiler-plugin</artifactId>
	<version>3.11.0</version>
</plugin>
<plugin>
	<!-- generate index of project components -->
	<groupId>org.eclipse.sisu</groupId>
	<artifactId>sisu-maven-plugin</artifactId>
	<version>0.9.0.M1</version>
	<executions>
		<execution>
			<goals>
				<goal>main-index</goal>
			</goals>
		</execution>
	</executions>
</plugin>
{code}

If we compile the custom rule and verify the using project, we get 

{code}
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin:3.2.1:enforce (enforce) on project maven-enforcer-plugin-sample-usage: Execution enforce of goal org.apache.maven.plugins:maven-enforcer-plugin:3.2.1:enforce failed: Failed to create enforcer rules with name: myCustomRule or for class: org.apache.maven.plugins.enforcer.MyCustomRule -> [Help 1]
{code}

The index file itself looks good, so something else within the plugin or Sisu Plexus seems to break.



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