Fixes a couple of issues by using interfaces rather than a specific implementation

1 files changed, 1 insertions, 1 deletions

diff --git a/sonar-plugin-api/src/main/java/org/sonar/api/config/PropertyDefinitions.java b/sonar-plugin-api/src/main/java/org/sonar/api/config/PropertyDefinitions.java
index be86d2c363e..4085756d0d3 100644
--- a/sonar-plugin-api/src/main/java/org/sonar/api/config/PropertyDefinitions.java
+++ b/sonar-plugin-api/src/main/java/org/sonar/api/config/PropertyDefinitions.java
@@ -166,7 +166,7 @@ public final class PropertyDefinitions implements BatchComponent, ServerComponen
     Map<Category, Map<SubCategory, Collection<PropertyDefinition>>> byCategory = new HashMap<Category, Map<SubCategory, Collection<PropertyDefinition>>>();
     if (qualifier == null) {
       // Special categories on global page
-      HashMap<SubCategory, Collection<PropertyDefinition>> emailSubCategories = new HashMap<SubCategory, Collection<PropertyDefinition>>();
+      Map<SubCategory, Collection<PropertyDefinition>> emailSubCategories = new HashMap<SubCategory, Collection<PropertyDefinition>>();
       emailSubCategories.put(new SubCategory("email", true), new ArrayList<PropertyDefinition>());
       byCategory.put(new Category(CoreProperties.CATEGORY_GENERAL, false), emailSubCategories);