Fix checkstyle so the build passes

src/main/java/io/netty/buffer/b2/Buf.java

@@ -152,8 +152,8 @@ public interface Buf extends Rc<Buf>, BufAccessors {
      *
      * @param offset The writer offset to set.
      * @return This Buf.
-     * @throws IndexOutOfBoundsException if the specified {@code offset} is less than the current {@link #readerOffset()}
-     *                                   or greater than {@link #capacity()}.
+     * @throws IndexOutOfBoundsException if the specified {@code offset} is less than the current
+     * {@link #readerOffset()} or greater than {@link #capacity()}.
      */
     Buf writerOffset(int offset);
 
@@ -371,4 +371,4 @@ public interface Buf extends Rc<Buf>, BufAccessors {
      * That is, if {@link #countBorrows()} is not {@code 0}.
      */
     void ensureWritable(int size);
-}
+}

src/main/java/io/netty/buffer/b2/BufAccessors.java

@@ -18,7 +18,8 @@ package io.netty.buffer.b2;
 /**
  * This interface is just the primitive data accessor methods that {@link Buf} exposes.
  * It can be useful if you only need the data access methods, and perhaps wish to decorate or modify their behaviour.
- * Usually, you'd use the {@link Buf} interface directly, since this lets you properly control the buffer reference count.
+ * Usually, you'd use the {@link Buf} interface directly, since this lets you properly control the buffer reference
+ * count.
  */
 public interface BufAccessors {
     // <editor-fold defaultstate="collapsed" desc="Primitive accessors interface.">
@@ -610,4 +611,4 @@ public interface BufAccessors {
      */
     Buf setDouble(int woff, double value);
     // </editor-fold>
-}
+}

src/main/java/io/netty/buffer/b2/CompositeBuf.java

@@ -893,7 +893,7 @@ final class CompositeBuf extends RcSupport<Buf, CompositeBuf> implements Buf {
 
     private int searchOffsets(int index) {
         int i = Arrays.binarySearch(offsets, index);
-        return i < 0? -(i+2) : i;
+        return i < 0? -(i + 2) : i;
     }
 
     // <editor-fold defaultstate="collapsed" desc="Torn buffer access.">

src/main/java/io/netty/buffer/b2/MemSegBuf.java

@@ -853,4 +853,4 @@ class MemSegBuf extends RcSupport<Buf, MemSegBuf> implements Buf {
             return new MemSegBuf(segment, drop, alloc);
         }
     }
-}
+}

src/main/java/io/netty/buffer/b2/MemoryManager.java

@@ -77,7 +77,7 @@ public interface MemoryManager {
         }
 
         @SuppressWarnings("unchecked")
-        private static <T,R> Drop<R> convert(Drop<T> drop) {
+        private static <T, R> Drop<R> convert(Drop<T> drop) {
             return (Drop<R>) drop;
         }
     }

src/main/java/io/netty/buffer/b2/Statics.java

@@ -24,7 +24,7 @@ import java.util.concurrent.atomic.LongAdder;
 interface Statics {
     Cleaner CLEANER = Cleaner.create();
     LongAdder MEM_USAGE_NATIVE = new LongAdder();
-    ConcurrentHashMap<Long,Runnable> CLEANUP_ACTIONS = new ConcurrentHashMap<>();
+    ConcurrentHashMap<Long, Runnable> CLEANUP_ACTIONS = new ConcurrentHashMap<>();
     Drop<Buf> NO_OP_DROP = buf -> {
     };
 

src/test/java/io/netty/buffer/b2/BufTest.java

@@ -3806,4 +3806,4 @@ public class BufTest {
                                actual, Double.doubleToRawLongBits(actual)));
         }
     }
-}
+}

src/test/java/io/netty/buffer/b2/ScopeTest.java

@@ -1,3 +1,18 @@
+/*
+ * Copyright 2020 The Netty Project
+ *
+ * The Netty Project licenses this file to you under the Apache License,
+ * version 2.0 (the "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at:
+ *
+ *   https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
 package io.netty.buffer.b2;
 
 import org.junit.Test;
@@ -52,4 +67,4 @@ public class ScopeTest {
             list.add(order);
         }
     }
-}
+}