diff --git a/src/java.activation/share/classes/module-info.java b/src/java.activation/share/classes/module-info.java
index d650787..dca632e 100644
--- a/src/java.activation/share/classes/module-info.java
+++ b/src/java.activation/share/classes/module-info.java
@@ -23,6 +23,9 @@
  * questions.
  */
 
+/**
+ * Defines the JavaBeans Activation Framework (JAF) API.
+ */
 module java.activation {
     requires public java.datatransfer;
     // dependence on java.beans.Beans to be eliminated
diff --git a/src/java.annotations.common/share/classes/module-info.java b/src/java.annotations.common/share/classes/module-info.java
index 0a3a8dd..fddb78c 100644
--- a/src/java.annotations.common/share/classes/module-info.java
+++ b/src/java.annotations.common/share/classes/module-info.java
@@ -23,6 +23,10 @@
  * questions.
  */
 
+/**
+ * Defines a subset of the Common Annotations API to support programs running
+ * on the Java SE Platform.
+ */
 module java.annotations.common {
     exports javax.annotation;
 }
diff --git a/src/java.xml.bind/share/classes/module-info.java b/src/java.xml.bind/share/classes/module-info.java
index 7f7cde8..708945a 100644
--- a/src/java.xml.bind/share/classes/module-info.java
+++ b/src/java.xml.bind/share/classes/module-info.java
@@ -23,6 +23,9 @@
  * questions.
  */
 
+/**
+ * Defines the Java Architecture for XML Binding (JAXB) API.
+ */
 module java.xml.bind {
     requires public java.activation;
     requires public java.xml;
diff --git a/src/java.xml.ws/share/classes/module-info.java b/src/java.xml.ws/share/classes/module-info.java
index 799e0f2..cba0cde 100644
--- a/src/java.xml.ws/share/classes/module-info.java
+++ b/src/java.xml.ws/share/classes/module-info.java
@@ -23,6 +23,10 @@
  * questions.
  */
 
+/**
+ * Defines the Java API for XML-Based Web Services (JAX-WS), and
+ * the Web Services Metadata API.
+ */
 module java.xml.ws {
     requires public java.activation;
     requires public java.xml;