Add nullable annotation to signal that the parameter can be null

Signed-off-by: Yannic Klem <yannic.klem@bosch.io>
eclipse-ditto · Oct 2, 2020 · e51427c · e51427c
1 parent 6a6c500
commit e51427c
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/java/src/main/java/org/eclipse/ditto/client/configuration/MessagingConfiguration.java b/java/src/main/java/org/eclipse/ditto/client/configuration/MessagingConfiguration.java
@@ -156,7 +156,7 @@ interface Builder {
          * @param handler the handler that will be called with the cause of the connection error.
          * @since 1.2.0
          */
-        Builder connectionErrorHandler(final Consumer<Throwable> handler);
+        Builder connectionErrorHandler(@Nullable final Consumer<Throwable> handler);
 
         /**
          * Creates a new instance of {@code MessagingConfiguration}.

diff --git a/...src/main/java/org/eclipse/ditto/client/configuration/WebSocketMessagingConfiguration.java b/...src/main/java/org/eclipse/ditto/client/configuration/WebSocketMessagingConfiguration.java
@@ -185,7 +185,7 @@ public MessagingConfiguration.Builder trustStoreConfiguration(
         }
 
         @Override
-        public Builder connectionErrorHandler(final Consumer<Throwable> handler) {
+        public Builder connectionErrorHandler(@Nullable final Consumer<Throwable> handler) {
             this.connectionErrorHandler = handler;
             return this;
         }