fix checkstyle errors

Signed-off-by: christian.lutnik <[email protected]>

Author: chrfwow

src/main/java/dev/openfeature/sdk/ProviderAccessor.java

@@ -5,5 +5,6 @@
  */
 public interface ProviderAccessor {
     FeatureProvider getProvider();
+
     ProviderState getProviderState();
 }

src/main/java/dev/openfeature/sdk/ProviderRepository.java

@@ -44,7 +44,9 @@ public FeatureProvider getProvider() {
      * @return A named {@link FeatureProvider}
      */
     public FeatureProvider getProvider(String domain) {
-        if (domain == null) return defaultProvider.get().getDelegate();
+        if (domain == null) {
+            return defaultProvider.get().getDelegate();
+        }
         StatefulFeatureProvider fromMap = this.providers.get(domain);
         if (fromMap == null) {
             return this.defaultProvider.get().getDelegate();