diff --git a/helloworld/pom.xml b/helloworld/pom.xml
index 6e1b3a7..3fa9c7f 100644
--- a/helloworld/pom.xml
+++ b/helloworld/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.springframework.samples.spring</groupId>
diff --git a/helloworld/src/main/resources/rabbitConfiguration.xml b/helloworld/src/main/resources/rabbitConfiguration.xml
index 4efd25a..3963c1d 100644
--- a/helloworld/src/main/resources/rabbitConfiguration.xml
+++ b/helloworld/src/main/resources/rabbitConfiguration.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:rabbit="http://www.springframework.org/schema/rabbit"
-	xsi:schemaLocation="http://www.springframework.org/schema/rabbit http://www.springframework.org/schema/rabbit/spring-rabbit.xsd
-		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/rabbit https://www.springframework.org/schema/rabbit/spring-rabbit.xsd
+		http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd">
 
 	<rabbit:connection-factory id="connectionFactory"/>
 	
diff --git a/log4j2/pom.xml b/log4j2/pom.xml
index c57f35f..503b8b7 100644
--- a/log4j2/pom.xml
+++ b/log4j2/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>org.springframework.amqp.samples</groupId>
diff --git a/pom.xml b/pom.xml
index d964cee..1eaaed0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.springframework.amqp</groupId>
 	<artifactId>spring-amqp-samples</artifactId>
diff --git a/spring-rabbit-confirms-returns/pom.xml b/spring-rabbit-confirms-returns/pom.xml
index 8055817..8d97818 100644
--- a/spring-rabbit-confirms-returns/pom.xml
+++ b/spring-rabbit-confirms-returns/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>org.springframework.amqp.samples</groupId>
diff --git a/spring-rabbit-global-errorhandler/pom.xml b/spring-rabbit-global-errorhandler/pom.xml
index 304f627..99e9a3a 100644
--- a/spring-rabbit-global-errorhandler/pom.xml
+++ b/spring-rabbit-global-errorhandler/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>com.example</groupId>
diff --git a/spring-rabbit-json/pom.xml b/spring-rabbit-json/pom.xml
index c4efd1d..1c309fc 100644
--- a/spring-rabbit-json/pom.xml
+++ b/spring-rabbit-json/pom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 
 	<groupId>com.example</groupId>
diff --git a/stocks/pom.xml b/stocks/pom.xml
index c708e7f..b133ef7 100644
--- a/stocks/pom.xml
+++ b/stocks/pom.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
+<project xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.springframework.samples.spring</groupId>
diff --git a/stocks/src/main/resources/client-bootstrap-config.xml b/stocks/src/main/resources/client-bootstrap-config.xml
index 45d0855..cdae245 100644
--- a/stocks/src/main/resources/client-bootstrap-config.xml
+++ b/stocks/src/main/resources/client-bootstrap-config.xml
@@ -2,8 +2,8 @@
 <beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:context="http://www.springframework.org/schema/context"
-	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
-		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
+		http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
 
 	<!--  pick up rabbit broker configuration -->
 	<context:component-scan base-package="org.springframework.amqp.rabbit.stocks.config.client"/>
diff --git a/stocks/src/main/resources/client-handlers.xml b/stocks/src/main/resources/client-handlers.xml
index 1e648d8..2d245dd 100644
--- a/stocks/src/main/resources/client-handlers.xml
+++ b/stocks/src/main/resources/client-handlers.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd">
 
 	<bean id="stockController" class="org.springframework.amqp.rabbit.stocks.ui.StockController">
 		<property name="stockServiceGateway" ref="stockServiceGateway"/>
diff --git a/stocks/src/main/resources/client-messaging.xml b/stocks/src/main/resources/client-messaging.xml
index 08de029..850e0c0 100644
--- a/stocks/src/main/resources/client-messaging.xml
+++ b/stocks/src/main/resources/client-messaging.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:rabbit="http://www.springframework.org/schema/rabbit"
-	xsi:schemaLocation="http://www.springframework.org/schema/rabbit http://www.springframework.org/schema/rabbit/spring-rabbit.xsd
-		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/rabbit https://www.springframework.org/schema/rabbit/spring-rabbit.xsd
+		http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd">
 
 	<bean id="stockServiceGateway" class="org.springframework.amqp.rabbit.stocks.gateway.RabbitStockServiceGateway">
 		<property name="rabbitTemplate" ref="rabbitTemplate" />
diff --git a/stocks/src/main/resources/server-bootstrap-config.xml b/stocks/src/main/resources/server-bootstrap-config.xml
index 2067179..05882d6 100644
--- a/stocks/src/main/resources/server-bootstrap-config.xml
+++ b/stocks/src/main/resources/server-bootstrap-config.xml
@@ -3,9 +3,9 @@
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:context="http://www.springframework.org/schema/context"
 	xmlns:task="http://www.springframework.org/schema/task"
-	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
-		http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd
-		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
+		http://www.springframework.org/schema/task https://www.springframework.org/schema/task/spring-task.xsd
+		http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
 
 	<context:property-placeholder system-properties-mode="OVERRIDE"/>
 
diff --git a/stocks/src/main/resources/server-handlers.xml b/stocks/src/main/resources/server-handlers.xml
index c95752e..48ec36c 100644
--- a/stocks/src/main/resources/server-handlers.xml
+++ b/stocks/src/main/resources/server-handlers.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd">
 
 	<bean name="serverHandler" class="org.springframework.amqp.rabbit.stocks.handler.ServerHandler">
 		<constructor-arg ref="executionVenueService"/>
diff --git a/stocks/src/main/resources/server-jmx.xml b/stocks/src/main/resources/server-jmx.xml
index 5e6f5bf..cbd2a5a 100644
--- a/stocks/src/main/resources/server-jmx.xml
+++ b/stocks/src/main/resources/server-jmx.xml
@@ -3,8 +3,8 @@
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:context="http://www.springframework.org/schema/context"
 	xmlns:p="http://www.springframework.org/schema/p"
-	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
-		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
+		http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
 
     <context:mbean-export/>
 
diff --git a/stocks/src/main/resources/server-messaging.xml b/stocks/src/main/resources/server-messaging.xml
index 3630bec..3243119 100644
--- a/stocks/src/main/resources/server-messaging.xml
+++ b/stocks/src/main/resources/server-messaging.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:rabbit="http://www.springframework.org/schema/rabbit"
-	xsi:schemaLocation="http://www.springframework.org/schema/rabbit http://www.springframework.org/schema/rabbit/spring-rabbit.xsd
-		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/rabbit https://www.springframework.org/schema/rabbit/spring-rabbit.xsd
+		http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd">
 
 	<bean id="marketDataGateway" class="org.springframework.amqp.rabbit.stocks.gateway.RabbitMarketDataGateway">
 		<property name="rabbitOperations" ref="rabbitTemplate" />
diff --git a/stocks/src/main/resources/server-services.xml b/stocks/src/main/resources/server-services.xml
index bf88bf6..2cb7ec9 100644
--- a/stocks/src/main/resources/server-services.xml
+++ b/stocks/src/main/resources/server-services.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd">
 
 	<bean id="executionVenueService"
 		class="org.springframework.amqp.rabbit.stocks.service.stubs.ExecutionVenueServiceStub">
diff --git a/stocks/src/main/resources/servlet-config.xml b/stocks/src/main/resources/servlet-config.xml
index 6e115a1..ec51438 100644
--- a/stocks/src/main/resources/servlet-config.xml
+++ b/stocks/src/main/resources/servlet-config.xml
@@ -2,10 +2,10 @@
 <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc"
 	xmlns:rabbit="http://www.springframework.org/schema/rabbit"
-	xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
-		http://www.springframework.org/schema/rabbit http://www.springframework.org/schema/rabbit/spring-rabbit.xsd
-		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
-		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
+	xsi:schemaLocation="http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd
+		http://www.springframework.org/schema/rabbit https://www.springframework.org/schema/rabbit/spring-rabbit.xsd
+		http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
+		http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
 
 	<bean id="stockServiceGateway" class="org.springframework.amqp.rabbit.stocks.gateway.RabbitStockServiceGateway">
 		<property name="rabbitOperations">
diff --git a/stocks/src/main/webapp/WEB-INF/web.xml b/stocks/src/main/webapp/WEB-INF/web.xml
index fda42b6..57de231 100644
--- a/stocks/src/main/webapp/WEB-INF/web.xml
+++ b/stocks/src/main/webapp/WEB-INF/web.xml
@@ -2,7 +2,7 @@
 <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:schemaLocation="
 			http://java.sun.com/xml/ns/j2ee
-			http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
+			https://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
 	version="2.4">
 
 	<context-param>