khmarbaise commented on a change in pull request #423:
URL: https://github.com/apache/maven/pull/423#discussion_r550321423
##########
File path:
maven-core/src/main/java/org/apache/maven/lifecycle/internal/builder/BuilderCommon.java
##########
@@ -105,6 +106,20 @@ public MavenExecutionPlan resolveBuildPlan( MavenSession
session, MavenProject p
lifecycleDebugLogger.debugProjectPlan( project, executionPlan );
+ // With Maven 4's build/consumer the POM will always rewrite during
distribution.
+ // The maven-gpg-plugin uses the original POM, causing an invalid
signature.
+ // Fail as long as there's no solution available yet
+ Optional<MojoExecution> gpgMojo =
executionPlan.getMojoExecutions().stream()
+ .filter( m -> "org.apache.maven.plugins".equals(
m.getGroupId() ) )
+ .filter( m -> "maven-gpg-plugin".equals( m.getArtifactId() ) )
+ .findAny();
+
+ if ( gpgMojo.isPresent() )
+ {
Review comment:
What about adding a predicate:
```java
private Predicate<MojoExecution> isMavenGpgPlugin = m ->
m.getArtifactId().equals(
"maven-gpg-plugin" ) && m.getGroupId().equals(
"org.apache.maven.plugins" );
```
Then you can change the whole filter via the following:
```java
boolean gpgMojo =
executionPlan.getMojoExecutions().stream().anyMatch(isMavenGpgPlugin);
if ( gpgMojo )
{
throw new LifecycleExecutionException( "The maven-gpg-plugin is
not supported by Maven 4."
+ " Verify if there is a compatible signing solution or use
Maven 3" );
}
```
because the optional is only used as boolean.
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