Condition is an interface

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@275503 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/CoreTypes/custom-programming.html

@@ -56,7 +56,7 @@ package com.mydomain;
 import org.apache.tools.ant.BuildException;
 import org.apache.tools.ant.taskdefs.condition.Condition;
 
-public class AllUpperCaseCondition extends Condition {
+public class AllUpperCaseCondition implements Condition {
     private String value;
 
     // The setter for the "value" attribute