diff --git a/impl/core/src/main/java/br/gov/frameworkdemoiselle/configuration/Configuration.java b/impl/core/src/main/java/br/gov/frameworkdemoiselle/configuration/Configuration.java
index 80b4d41..a1f0a13 100644
--- a/impl/core/src/main/java/br/gov/frameworkdemoiselle/configuration/Configuration.java
+++ b/impl/core/src/main/java/br/gov/frameworkdemoiselle/configuration/Configuration.java
@@ -43,11 +43,8 @@ import java.lang.annotation.Inherited;
 import java.lang.annotation.Retention;
 import java.lang.annotation.Target;
 
-import javax.enterprise.context.ApplicationScoped;
-import javax.enterprise.context.RequestScoped;
 import javax.enterprise.inject.Stereotype;
 import javax.enterprise.util.Nonbinding;
-import javax.inject.Singleton;
 
 /**
  * Identifies a <b>configuration class</b>, that is, a structure reserved to store configuration values retrieved from a
@@ -64,7 +61,7 @@ import javax.inject.Singleton;
  * 
  * @author SERPRO
  */
-//@Singleton
+// @Singleton
 @Stereotype
 @Inherited
 @Target(TYPE)
diff --git a/impl/core/src/main/java/br/gov/frameworkdemoiselle/internal/producer/ResourceBundleProducer.java b/impl/core/src/main/java/br/gov/frameworkdemoiselle/internal/producer/ResourceBundleProducer.java
index b8ddec5..3511a67 100644
--- a/impl/core/src/main/java/br/gov/frameworkdemoiselle/internal/producer/ResourceBundleProducer.java
+++ b/impl/core/src/main/java/br/gov/frameworkdemoiselle/internal/producer/ResourceBundleProducer.java
@@ -38,13 +38,11 @@ package br.gov.frameworkdemoiselle.internal.producer;
 
 import java.io.Serializable;
 import java.util.Locale;
-import java.util.MissingResourceException;
 
 import javax.enterprise.inject.Default;
 import javax.enterprise.inject.Produces;
 import javax.enterprise.inject.spi.InjectionPoint;
 
-import br.gov.frameworkdemoiselle.DemoiselleException;
 import br.gov.frameworkdemoiselle.annotation.Name;
 import br.gov.frameworkdemoiselle.util.Beans;
 import br.gov.frameworkdemoiselle.util.ResourceBundle;
--
libgit2 0.21.2