diff --git a/maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/AbstractGeneratorMojo.java b/maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/AbstractGeneratorMojo.java
index 9965c1b..59f6036 100644
--- a/maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/AbstractGeneratorMojo.java
+++ b/maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/AbstractGeneratorMojo.java
@@ -48,7 +48,7 @@ public abstract class AbstractGeneratorMojo
     /**
      * The project currently being built.
      *
-     * @parameter expression="${project}"
+     * @parameter default-value="${project}"
      * @required
      * @readonly
      */
@@ -118,7 +118,7 @@ public abstract class AbstractGeneratorMojo
     public void execute()
         throws MojoExecutionException
     {
-        if ( !project.getPackaging().equals( "maven-plugin" ) )
+        if ( !"maven-plugin".equals( project.getPackaging() ) )
         {
             return;
         }
diff --git a/maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/metadata/AddPluginArtifactMetadataMojo.java b/maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/metadata/AddPluginArtifactMetadataMojo.java
index acdde91..f2c1bca 100644
--- a/maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/metadata/AddPluginArtifactMetadataMojo.java
+++ b/maven-plugin-plugin/src/main/java/org/apache/maven/plugin/plugin/metadata/AddPluginArtifactMetadataMojo.java
@@ -44,7 +44,7 @@ public class AddPluginArtifactMetadataMojo
     /**
      * The project artifact, which should have the LATEST metadata added to it.
      *
-     * @parameter expression="${project}"
+     * @parameter default-value="${project}"
      * @required
      * @readonly
      */