diff --git a/core-java-modules/core-java-streams-7/src/main/java/com/baeldung/streams/gatherer/SlidingWindowGatherer.java b/core-java-modules/core-java-streams-7/src/main/java/com/baeldung/streams/gatherer/SlidingWindowGatherer.java
index 713d88e0e2a1..a4e761a99159 100644
--- a/core-java-modules/core-java-streams-7/src/main/java/com/baeldung/streams/gatherer/SlidingWindowGatherer.java
+++ b/core-java-modules/core-java-streams-7/src/main/java/com/baeldung/streams/gatherer/SlidingWindowGatherer.java
@@ -1,12 +1,13 @@
 package com.baeldung.streams.gatherer;
 
 import java.util.*;
-import java.util.function.BiConsumer;
 import java.util.function.Supplier;
 import java.util.stream.Gatherer;
 
 public class SlidingWindowGatherer implements Gatherer<Integer, Deque<Integer>, List<Integer>> {
 
+    private static final int WINDOW_SIZE = 3;
+
     @Override
     public Supplier<Deque<Integer>> initializer() {
         return ArrayDeque::new;
@@ -18,15 +19,14 @@ public Integrator<Deque<Integer>, Integer, List<Integer>> integrator() {
             @Override
             public boolean integrate(Deque<Integer> state, Integer element, Downstream<? super List<Integer>> downstream) {
                 state.addLast(element);
-                downstream.push(new ArrayList<>(state));
-                state.removeFirst();
+                if (state.size() > WINDOW_SIZE) {
+                    state.removeFirst();
+                }
+                if (state.size() == WINDOW_SIZE) {
+                    downstream.push(new ArrayList<>(state));
+                }
                 return true;
             }
         };
     }
-
-    @Override
-    public BiConsumer<Deque<Integer>, Downstream<? super List<Integer>>> finisher() {
-        return (state, downstream) -> {};
-    }
-}
+}
\ No newline at end of file
diff --git a/spring-boot-modules/spring-boot-springdoc-2/pom.xml b/spring-boot-modules/spring-boot-springdoc-2/pom.xml
index 335e9b611f1a..29b9b8762258 100644
--- a/spring-boot-modules/spring-boot-springdoc-2/pom.xml
+++ b/spring-boot-modules/spring-boot-springdoc-2/pom.xml
@@ -58,11 +58,6 @@
             <groupId>org.springdoc</groupId>
             <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
             <version>${springdoc.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.springdoc</groupId>
-            <artifactId>springdoc-openapi-starter-common</artifactId>
-            <version>${springdoc.version}</version>
         </dependency>
          <dependency>
             <groupId>org.springframework.restdocs</groupId>
@@ -142,4 +137,4 @@
         <start-class>com.baeldung.restdocopenapi.Application</start-class>
     </properties>
 
-</project>
+</project>
\ No newline at end of file