Normalize to US English spelling.
diff --git a/core/src/main/java/org/apache/commons/digester3/plugins/PluginCreateRule.java b/core/src/main/java/org/apache/commons/digester3/plugins/PluginCreateRule.java
index ff26757..02db582 100644
--- a/core/src/main/java/org/apache/commons/digester3/plugins/PluginCreateRule.java
+++ b/core/src/main/java/org/apache/commons/digester3/plugins/PluginCreateRule.java
@@ -62,7 +62,7 @@
private Declaration defaultPlugin;
/**
- * Currently, none of the Rules methods allow exceptions to be thrown. Therefore if this class cannot initialise
+ * Currently, none of the Rules methods allow exceptions to be thrown. Therefore if this class cannot initialize
* itself properly, it cannot cause the digester to stop. Instead, we cache the exception and throw it the first
* time the begin() method is called.
*/
diff --git a/examples/api/catalog/src/main/java/org/apache/commons/digester3/examples/api/catalog/BookFactory.java b/examples/api/catalog/src/main/java/org/apache/commons/digester3/examples/api/catalog/BookFactory.java
index 2290b7b..7bfee92 100644
--- a/examples/api/catalog/src/main/java/org/apache/commons/digester3/examples/api/catalog/BookFactory.java
+++ b/examples/api/catalog/src/main/java/org/apache/commons/digester3/examples/api/catalog/BookFactory.java
@@ -52,7 +52,7 @@
* Book instance has been created.
* <p>
* Note that even if the class to be created does have a default constructor,
- * you may wish to use a factory class, in order to initialise the created
+ * you may wish to use a factory class, in order to initialize the created
* object in specific ways, or insert created objects into a central
* register, etc.
* <p>
diff --git a/examples/api/catalog/src/main/java/org/apache/commons/digester3/examples/api/catalog/Main.java b/examples/api/catalog/src/main/java/org/apache/commons/digester3/examples/api/catalog/Main.java
index c0bdff0..9c81266 100644
--- a/examples/api/catalog/src/main/java/org/apache/commons/digester3/examples/api/catalog/Main.java
+++ b/examples/api/catalog/src/main/java/org/apache/commons/digester3/examples/api/catalog/Main.java
@@ -159,7 +159,7 @@
// method. This usage is a little artificial - normally in this
// situation there would be separate Dvd and Video classes.
// Note also that equivalent behavior could be implemented by
- // using factory objects to create & initialise the AudioVisual
+ // using factory objects to create & initialize the AudioVisual
// objects with their type rather than using ObjectCreateRule.
d.addCallMethod( "catalog/dvd", "setType", 1 );
