@@ -111,6 +111,13 @@ public GHBranchProtection getProtection() throws IOException {
         return root().createRequest().setRawUrlPath(protection_url).fetch(GHBranchProtection.class);
     }
 
+    /**
+     * Lists rules configured for this branch.
+     *
+     * @return branch rules
+     * @throws IOException
+     *             if an I/O error occurs
+     */
     public PagedIterable<GHRule> getRules() throws IOException {
         return root().createRequest()
                 .withUrlPath(owner.getApiTailUrl("rules/branches/" + name))
 
@@ -353,7 +353,7 @@ public GHRepository getOwner() {
     /**
      * Gets commit verification.
      *
-     * @return
+     * @return the commit verification
      */
     public GHVerification getVerification() {
         return commit.getVerification();
@@ -362,7 +362,7 @@ public GHVerification getVerification() {
     /**
      * Gets commit author.
      *
-     * @return
+     * @return the commit author
      */
     public GitUser getCommitAuthor() {
         return commit.getAuthor();
@@ -371,7 +371,7 @@ public GitUser getCommitAuthor() {
     /**
      * Gets commit committer.
      *
-     * @return
+     * @return the commit committer
      */
     public GitUser getCommitCommitter() {
         return commit.getCommitter();
 
@@ -4,41 +4,94 @@
 
 import javax.annotation.Nonnull;
 
+/**
+ * Environment variable configured for a repository environment.
+ */
 public class GHEnvironmentVariable extends GitHubInteractiveObject {
 
     private String name;
     private String value;
     private String createdAt;
     private String updatedAt;
 
+    /**
+     * Creates an environment variable instance.
+     */
+    public GHEnvironmentVariable() {
+    }
+
+    /**
+     * Gets the variable name.
+     *
+     * @return the variable name
+     */
     public String getName() {
         return name;
     }
 
+    /**
+     * Sets the variable name.
+     *
+     * @param name
+     *            the variable name
+     */
     public void setName(String name) {
         this.name = name;
     }
 
+    /**
+     * Gets the variable value.
+     *
+     * @return the variable value
+     */
     public String getValue() {
         return value;
     }
 
+    /**
+     * Sets the variable value.
+     *
+     * @param value
+     *            the variable value
+     */
     public void setValue(String value) {
         this.value = value;
     }
 
+    /**
+     * Gets the creation timestamp.
+     *
+     * @return the creation timestamp
+     */
     public String getCreatedAt() {
         return createdAt;
     }
 
+    /**
+     * Sets the creation timestamp.
+     *
+     * @param createdAt
+     *            the creation timestamp
+     */
     public void setCreatedAt(String createdAt) {
         this.createdAt = createdAt;
     }
 
+    /**
+     * Gets the update timestamp.
+     *
+     * @return the update timestamp
+     */
     public String getUpdatedAt() {
         return updatedAt;
     }
 
+    /**
+     * Sets the update timestamp.
+     *
+     * @param updatedAt
+     *            the update timestamp
+     */
     public void setUpdatedAt(String updatedAt) {
         this.updatedAt = updatedAt;
     }
 
@@ -67,8 +67,16 @@ void wrapUp(GHPullRequest owner) {
     public static class GHCommitDetailAuthor {
         String login;
 
+        /**
+         * Creates a commit detail author instance.
+         */
+        public GHCommitDetailAuthor() {
+        }
+
         /**
          * GitHub user login
+         *
+         * @return the GitHub user login
          */
         public String getLogin() {
             return login;
@@ -335,6 +343,7 @@ public CommitPointer[] getParents() {
     /**
      * Gets the GitHub user - author of the commit.
      *
+     * @return the commit author
      */
     public GHCommitDetailAuthor getAuthor() {
         return author;
@@ -343,6 +352,7 @@ public GHCommitDetailAuthor getAuthor() {
     /**
      * Gets the GitHub user - committer of the commit.
      *
+     * @return the commit committer
      */
     public GHCommitDetailAuthor getCommitter() {
         return committer;