diff --git a/src/main/java/org/codehaus/mojo/sonar/ExtensionsFactory.java b/src/main/java/org/codehaus/mojo/sonar/ExtensionsFactory.java
index 2cfbc33..2bfac01 100644
--- a/src/main/java/org/codehaus/mojo/sonar/ExtensionsFactory.java
+++ b/src/main/java/org/codehaus/mojo/sonar/ExtensionsFactory.java
@@ -2,19 +2,14 @@
 
 import org.apache.maven.plugin.logging.Log;
 
-import org.apache.maven.artifact.versioning.ArtifactVersion;
-import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
 import org.apache.maven.execution.MavenSession;
 import org.apache.maven.artifact.factory.ArtifactFactory;
 import org.apache.maven.artifact.metadata.ArtifactMetadataSource;
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.artifact.resolver.ArtifactCollector;
 import org.apache.maven.lifecycle.LifecycleExecutor;
-import org.apache.maven.plugins.annotations.Component;
-import org.apache.maven.plugins.annotations.Parameter;
 import org.apache.maven.project.MavenProjectBuilder;
 import org.apache.maven.shared.dependency.tree.DependencyTreeBuilder;
-import edu.emory.mathcs.backport.java.util.Arrays;
 
 import java.util.LinkedList;
 import java.util.List;
diff --git a/src/main/java/org/codehaus/mojo/sonar/SonarMojo.java b/src/main/java/org/codehaus/mojo/sonar/SonarMojo.java
index 3105090..16dfe1a 100644
--- a/src/main/java/org/codehaus/mojo/sonar/SonarMojo.java
+++ b/src/main/java/org/codehaus/mojo/sonar/SonarMojo.java
@@ -56,7 +56,7 @@
 /**
  * Analyze project. SonarQube server must be started.
  */
-@Mojo( name = "sonar", aggregator = true, requiresDependencyResolution = ResolutionScope.TEST )
+@Mojo( name = "sonar", requiresDependencyResolution = ResolutionScope.TEST, aggregator = true )
 public class SonarMojo
     extends AbstractMojo
 {
diff --git a/src/main/java/org/codehaus/mojo/sonar/bootstrap/LogHandler.java b/src/main/java/org/codehaus/mojo/sonar/bootstrap/LogHandler.java
index de00958..749472d 100644
--- a/src/main/java/org/codehaus/mojo/sonar/bootstrap/LogHandler.java
+++ b/src/main/java/org/codehaus/mojo/sonar/bootstrap/LogHandler.java
@@ -36,4 +36,4 @@ public void log( String log, Level level )
                 break;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/java/org/codehaus/mojo/sonar/bootstrap/MavenProjectConverter.java b/src/main/java/org/codehaus/mojo/sonar/bootstrap/MavenProjectConverter.java
index 19042f5..b67f0ef 100644
--- a/src/main/java/org/codehaus/mojo/sonar/bootstrap/MavenProjectConverter.java
+++ b/src/main/java/org/codehaus/mojo/sonar/bootstrap/MavenProjectConverter.java
@@ -276,7 +276,7 @@ private static void guessJavaVersion( MavenProject pom, Properties props )
         }
     }
 
-    private void findBugsExcludeFileMaven( MavenProject pom, Properties props )
+    private static void findBugsExcludeFileMaven( MavenProject pom, Properties props )
     {
         Reporting reporting = pom.getModel().getReporting();