diff --git a/spring-boot-dependencies/pom.xml b/spring-boot-dependencies/pom.xml
index a30530e91cf..0b9d4a35ab3 100644
--- a/spring-boot-dependencies/pom.xml
+++ b/spring-boot-dependencies/pom.xml
@@ -1876,4 +1876,4 @@
 			<id>integration-test</id>
 		</profile>
 	</profiles>
-</project>
+</project>
\ No newline at end of file
diff --git a/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/restart/Restarter.java b/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/restart/Restarter.java
index 90fc2a66901..3d548a0f9bb 100644
--- a/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/restart/Restarter.java
+++ b/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/restart/Restarter.java
@@ -111,7 +111,7 @@ public class Restarter {
 	 * @param thread the source thread
 	 * @param args the application arguments
 	 * @param forceReferenceCleanup if soft/weak reference cleanup should be forced
-	 * @param initializer
+	 * @param initializer the restart initializer
 	 * @see #initialize(String[])
 	 */
 	protected Restarter(Thread thread, String[] args, boolean forceReferenceCleanup,
diff --git a/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/tunnel/client/TunnelConnection.java b/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/tunnel/client/TunnelConnection.java
index f885b2a1ee8..7873c1e89c2 100644
--- a/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/tunnel/client/TunnelConnection.java
+++ b/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/tunnel/client/TunnelConnection.java
@@ -31,7 +31,7 @@ public interface TunnelConnection {
 	 * Open the tunnel connection.
 	 * @param incomingChannel A {@link WritableByteChannel} that should be used to write
 	 * any incoming data received from the remote server.
-	 * @param closeable
+	 * @param closeable a closeable to call when the channel is closed
 	 * @return A {@link WritableByteChannel} that should be used to send any outgoing data
 	 * destined for the remote server
 	 * @throws Exception
diff --git a/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/tunnel/server/HttpTunnelServer.java b/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/tunnel/server/HttpTunnelServer.java
index 976109f45f0..891630ec078 100644
--- a/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/tunnel/server/HttpTunnelServer.java
+++ b/spring-boot-developer-tools/src/main/java/org/springframework/boot/developertools/tunnel/server/HttpTunnelServer.java
@@ -46,16 +46,16 @@ import org.springframework.util.Assert;
  * <pre>
  * [ CLIENT ]                      [ SERVER ]
  *     | (a) Initial empty request     |
- *     |------------------------------}|
+ *     |------------------------------&gt;|
  *     | (b) Data I                    |
- *  --}|------------------------------}|---}
+ *  --&gt;|------------------------------&gt;|---&gt;
  *     | Response I (a)                |
- *  {--|<------------------------------|{---
+ *  &lt;--|&lt;------------------------------|&lt;---
  *     |                               |
  *     | (c) Data II                   |
- *  --}|------------------------------}|---}
+ *  --&gt;|------------------------------&gt;|---&gt;
  *     | Response II (b)               |
- *  {--|{------------------------------|{---
+ *  &lt;--|&lt;------------------------------|&lt;---
  *     .                               .
  *     .                               .
  * </pre>
@@ -66,8 +66,7 @@ import org.springframework.util.Assert;
  * Requests should be made using HTTP GET or POST (depending if there is a payload), with
  * any payload contained in the body. The following response codes can be returned from
  * the server:
- * <p>
- * <table>
+ * <table summary="Response Codes">
  * <tr>
  * <th>Status</th>
  * <th>Meaning</th>