diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/ConditionalOnProperty.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/ConditionalOnProperty.java
index 2d71b4d690..692b528ffd 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/ConditionalOnProperty.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/ConditionalOnProperty.java
@@ -36,7 +36,8 @@ import org.springframework.core.env.Environment;
  * should have. The table below shows when a condition matches according to the property
  * value and the {@link #havingValue()} attribute:
  *
- * <table summary="having values" border="1">
+ * <table border="1">
+ * <caption>Having values</caption>
  * <tr>
  * <th>Property Value</th>
  * <th>{@code havingValue=""}</th>
diff --git a/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/tunnel/server/HttpTunnelServer.java b/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/tunnel/server/HttpTunnelServer.java
index 8ac0c2d758..aef4681f66 100644
--- a/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/tunnel/server/HttpTunnelServer.java
+++ b/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/tunnel/server/HttpTunnelServer.java
@@ -68,7 +68,8 @@ 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:
- * <table summary="Response Codes">
+ * <table>
+ * <caption>Response Codes</caption>
  * <tr>
  * <th>Status</th>
  * <th>Meaning</th>
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/json-shade/java/org/springframework/boot/configurationprocessor/json/JSONObject.java b/spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/json-shade/java/org/springframework/boot/configurationprocessor/json/JSONObject.java
index caf1d47dab..43386a9584 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/json-shade/java/org/springframework/boot/configurationprocessor/json/JSONObject.java
+++ b/spring-boot-project/spring-boot-tools/spring-boot-configuration-processor/src/json-shade/java/org/springframework/boot/configurationprocessor/json/JSONObject.java
@@ -41,7 +41,7 @@ import java.util.Map;
  * <li>When the requested type is an int, other {@link Number} types will be coerced using
  * {@link Number#intValue() intValue}. Strings that can be coerced using
  * {@link Double#valueOf(String)} will be, and then cast to int.
- * <li><a name="lossy">When the requested type is a long, other {@link Number} types will
+ * <li><a id="lossy">When the requested type is a long, other {@link Number} types will
  * be coerced using {@link Number#longValue() longValue}. Strings that can be coerced
  * using {@link Double#valueOf(String)} will be, and then cast to long. This two-step
  * conversion is lossy for very large values. For example, the string