switch to https
diff --git a/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/BranchReleaseMojo.java b/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/BranchReleaseMojo.java
index 41bf022..2d19880 100644
--- a/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/BranchReleaseMojo.java
+++ b/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/BranchReleaseMojo.java
@@ -32,8 +32,8 @@
 
 /**
  * Branch a project in SCM, using the same steps as the <tt>release:prepare</tt> goal, creating a branch instead of a
- * tag. For more info see <a href="http://maven.apache.org/plugins/maven-release-plugin/examples/branch.html"
- * >http://maven.apache.org/plugins/maven-release-plugin/examples/branch.html</a>.
+ * tag. For more info see <a href="https://maven.apache.org/plugins/maven-release-plugin/examples/branch.html"
+ * >https://maven.apache.org/plugins/maven-release-plugin/examples/branch.html</a>.
  *
  * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
  * @version $Id$
diff --git a/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/CleanReleaseMojo.java b/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/CleanReleaseMojo.java
index 3de5857..ed23b8a 100644
--- a/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/CleanReleaseMojo.java
+++ b/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/CleanReleaseMojo.java
@@ -30,8 +30,8 @@
  * Clean up after a release preparation. This is done automatically after a successful <tt>release:perform</tt>,
  * so is best served for cleaning up a failed or abandoned release, or a dry run. Note that only the working copy
  * is cleaned up, no previous steps are rolled back.
- * For more info see <a href="http://maven.apache.org/plugins/maven-release-plugin/examples/clean-release.html"
- * >http://maven.apache.org/plugins/maven-release-plugin/examples/clean-release.html</a>.
+ * For more info see <a href="https://maven.apache.org/plugins/maven-release-plugin/examples/clean-release.html"
+ * >https://maven.apache.org/plugins/maven-release-plugin/examples/clean-release.html</a>.
  *
  * @author <a href="mailto:brett@apache.org">Brett Porter</a>
  * @version $Id$
diff --git a/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/PerformReleaseMojo.java b/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/PerformReleaseMojo.java
index 9abd94f..1636106 100644
--- a/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/PerformReleaseMojo.java
+++ b/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/PerformReleaseMojo.java
@@ -37,8 +37,8 @@
 /**
  * Perform a release from SCM, either from a specified tag, or the tag representing the previous release in
  * the working copy created by <tt>release:prepare</tt>.
- * For more info see <a href="http://maven.apache.org/plugins/maven-release-plugin/examples/perform-release.html"
- * >http://maven.apache.org/plugins/maven-release-plugin/examples/perform-release.html</a>.
+ * For more info see <a href="https://maven.apache.org/plugins/maven-release-plugin/examples/perform-release.html"
+ * >https://maven.apache.org/plugins/maven-release-plugin/examples/perform-release.html</a>.
  *
  * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
  * @author <a href="mailto:brett@apache.org">Brett Porter</a>
diff --git a/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/RollbackReleaseMojo.java b/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/RollbackReleaseMojo.java
index 970dad6..431a1cf 100644
--- a/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/RollbackReleaseMojo.java
+++ b/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/RollbackReleaseMojo.java
@@ -29,8 +29,8 @@
 /**
  * Rollback changes made by a previous release. This requires that the previous release descriptor
  * <tt>release.properties</tt> is still available in the local working copy. For more info see <a
- * href="http://maven.apache.org/plugins/maven-release-plugin/examples/rollback-release.html"
- * >http://maven.apache.org/plugins/maven-release-plugin/examples/rollback-release.html</a>.
+ * href="https://maven.apache.org/plugins/maven-release-plugin/examples/rollback-release.html"
+ * >https://maven.apache.org/plugins/maven-release-plugin/examples/rollback-release.html</a>.
  *
  * @since 2.0-beta-5
  * @author Edwin Punzalan
diff --git a/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/UpdateVersionsMojo.java b/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/UpdateVersionsMojo.java
index 2aa1e8e..551fa2e 100644
--- a/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/UpdateVersionsMojo.java
+++ b/maven-release-plugin/src/main/java/org/apache/maven/plugins/release/UpdateVersionsMojo.java
@@ -32,8 +32,8 @@
 /**
  * Update the POM versions for a project. This performs the normal version updates of the <tt>release:prepare</tt> goal
  * without making other modifications to the SCM such as tagging. For more info see <a
- * href="http://maven.apache.org/plugins/maven-release-plugin/examples/update-versions.html"
- * >http://maven.apache.org/plugins/maven-release-plugin/examples/update-versions.html</a>.
+ * href="https://maven.apache.org/plugins/maven-release-plugin/examples/update-versions.html"
+ * >https://maven.apache.org/plugins/maven-release-plugin/examples/update-versions.html</a>.
  *
  * @author Paul Gier
  * @version $Id$