Correct Checkstyle violations
diff --git a/core/src/main/java/org/jclouds/chef/config/ChefProperties.java b/core/src/main/java/org/jclouds/chef/config/ChefProperties.java
index 211b5d6..affc9a3 100644
--- a/core/src/main/java/org/jclouds/chef/config/ChefProperties.java
+++ b/core/src/main/java/org/jclouds/chef/config/ChefProperties.java
@@ -20,7 +20,7 @@
 /**
  * Configuration properties and constants used in Chef connections.
  */
-public interface ChefProperties {
+public final class ChefProperties {
 
    /**
     * The name of the Chef logger.
@@ -107,4 +107,7 @@
     */
    public static final String CHEF_USE_OMNIBUS = "chef.use-omnibus";
 
+   private ChefProperties() {
+      throw new AssertionError("intentionally unimplemented");
+   }
 }
diff --git a/core/src/main/java/org/jclouds/chef/internal/BaseChefService.java b/core/src/main/java/org/jclouds/chef/internal/BaseChefService.java
index 1a3b153..3e5769b 100644
--- a/core/src/main/java/org/jclouds/chef/internal/BaseChefService.java
+++ b/core/src/main/java/org/jclouds/chef/internal/BaseChefService.java
@@ -128,7 +128,7 @@
       this.runListForGroup = checkNotNull(runListForGroup, "runListForGroup");
       this.listEnvironments = checkNotNull(listEnvironments, "listEnvironments");
       this.listNodesInEnvironment = checkNotNull(listNodesInEnvironment, "listNodesInEnvironment");
-      this.listCookbookVersionsInEnvironment = checkNotNull(listCookbookVersionsInEnvironment,"listCookbookVersionsInEnvironment");
+      this.listCookbookVersionsInEnvironment = checkNotNull(listCookbookVersionsInEnvironment, "listCookbookVersionsInEnvironment");
       this.json = checkNotNull(json, "json");
       this.crypto = checkNotNull(crypto, "crypto");
    }