diff --git a/.settings.xml b/.settings.xml
index 006f51e..0a52d54 100644
--- a/.settings.xml
+++ b/.settings.xml
@@ -15,7 +15,7 @@
 		<repository>
 			<id>spring-snapshots</id>
 			<name>Spring Snapshots</name>
-			<url>http://repo.spring.io/libs-snapshot-local</url>
+			<url>https://repo.spring.io/libs-snapshot-local</url>
 			<snapshots>
 				<enabled>true</enabled>
 			</snapshots>
@@ -23,7 +23,7 @@
 		<repository>
 			<id>spring-milestones</id>
 			<name>Spring Milestones</name>
-			<url>http://repo.spring.io/libs-milestone-local</url>
+			<url>https://repo.spring.io/libs-milestone-local</url>
 			<snapshots>
 				<enabled>false</enabled>
 			</snapshots>
@@ -31,7 +31,7 @@
 		<repository>
 			<id>spring-releases</id>
 			<name>Spring Releases</name>
-			<url>http://repo.spring.io/release</url>
+			<url>https://repo.spring.io/release</url>
 			<snapshots>
 				<enabled>false</enabled>
 			</snapshots>
@@ -41,7 +41,7 @@
 		<pluginRepository>
 			<id>spring-snapshots</id>
 			<name>Spring Snapshots</name>
-			<url>http://repo.spring.io/libs-snapshot-local</url>
+			<url>https://repo.spring.io/libs-snapshot-local</url>
 			<snapshots>
 				<enabled>true</enabled>
 			</snapshots>
@@ -49,7 +49,7 @@
 		<pluginRepository>
 			<id>spring-milestones</id>
 			<name>Spring Milestones</name>
-			<url>http://repo.spring.io/libs-milestone-local</url>
+			<url>https://repo.spring.io/libs-milestone-local</url>
 			<snapshots>
 				<enabled>false</enabled>
 			</snapshots>
diff --git a/pom.xml b/pom.xml
index fb5e724..e8db4b8 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/xsd/maven-4.0.0.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/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.springframework.cloud</groupId>
@@ -129,7 +129,7 @@
 				<repository>
 					<id>spring-snapshots</id>
 					<name>Spring Snapshots</name>
-					<url>http://repo.spring.io/libs-snapshot-local</url>
+					<url>https://repo.spring.io/libs-snapshot-local</url>
 					<snapshots>
 						<enabled>true</enabled>
 					</snapshots>
@@ -137,7 +137,7 @@
 				<repository>
 					<id>spring-milestones</id>
 					<name>Spring Milestones</name>
-					<url>http://repo.spring.io/libs-milestone-local</url>
+					<url>https://repo.spring.io/libs-milestone-local</url>
 					<snapshots>
 						<enabled>false</enabled>
 					</snapshots>
@@ -145,7 +145,7 @@
 				<repository>
 					<id>spring-releases</id>
 					<name>Spring Releases</name>
-					<url>http://repo.spring.io/release</url>
+					<url>https://repo.spring.io/release</url>
 					<snapshots>
 						<enabled>false</enabled>
 					</snapshots>
@@ -155,7 +155,7 @@
 				<pluginRepository>
 					<id>spring-snapshots</id>
 					<name>Spring Snapshots</name>
-					<url>http://repo.spring.io/libs-snapshot-local</url>
+					<url>https://repo.spring.io/libs-snapshot-local</url>
 					<snapshots>
 						<enabled>true</enabled>
 					</snapshots>
@@ -163,7 +163,7 @@
 				<pluginRepository>
 					<id>spring-milestones</id>
 					<name>Spring Milestones</name>
-					<url>http://repo.spring.io/libs-milestone-local</url>
+					<url>https://repo.spring.io/libs-milestone-local</url>
 					<snapshots>
 						<enabled>false</enabled>
 					</snapshots>
diff --git a/spring-cloud-dataflow-server-yarn-autoconfig/pom.xml b/spring-cloud-dataflow-server-yarn-autoconfig/pom.xml
index 9269079..5c2f336 100644
--- a/spring-cloud-dataflow-server-yarn-autoconfig/pom.xml
+++ b/spring-cloud-dataflow-server-yarn-autoconfig/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/xsd/maven-4.0.0.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/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>spring-cloud-dataflow-server-yarn-autoconfig</artifactId>
diff --git a/spring-cloud-dataflow-server-yarn-client/pom.xml b/spring-cloud-dataflow-server-yarn-client/pom.xml
index e2f190a..3d37d2f 100644
--- a/spring-cloud-dataflow-server-yarn-client/pom.xml
+++ b/spring-cloud-dataflow-server-yarn-client/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/xsd/maven-4.0.0.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/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.springframework.cloud</groupId>
diff --git a/spring-cloud-dataflow-server-yarn-dist/pom.xml b/spring-cloud-dataflow-server-yarn-dist/pom.xml
index 5bcbd60..ef6015c 100644
--- a/spring-cloud-dataflow-server-yarn-dist/pom.xml
+++ b/spring-cloud-dataflow-server-yarn-dist/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/xsd/maven-4.0.0.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/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>spring-cloud-dataflow-server-yarn-dist</artifactId>
diff --git a/spring-cloud-dataflow-server-yarn-dist/src/main/assembly/assembly.xml b/spring-cloud-dataflow-server-yarn-dist/src/main/assembly/assembly.xml
index 7ed7eed..b906f1a 100644
--- a/spring-cloud-dataflow-server-yarn-dist/src/main/assembly/assembly.xml
+++ b/spring-cloud-dataflow-server-yarn-dist/src/main/assembly/assembly.xml
@@ -1,7 +1,7 @@
 <assembly
 	xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
+	xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 https://maven.apache.org/xsd/assembly-1.1.2.xsd">
 
 	<id>server-yarn-dist-assembly</id>
 	<formats>
diff --git a/spring-cloud-dataflow-server-yarn-docs/pom.xml b/spring-cloud-dataflow-server-yarn-docs/pom.xml
index 591e43e..e3b3e3f 100644
--- a/spring-cloud-dataflow-server-yarn-docs/pom.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/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/xsd/maven-4.0.0.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/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>spring-cloud-dataflow-server-yarn-docs</artifactId>
 	<version>1.1.2.BUILD-SNAPSHOT</version>
@@ -101,8 +101,8 @@
 									<quiet>true</quiet>
 									<stylesheetfile>${basedir}/src/main/javadoc/spring-javadoc.css</stylesheetfile>
 									<links>
-										<link>http://docs.spring.io/spring-framework/docs/${spring.version}/javadoc-api/</link>
-										<link>http://docs.spring.io/spring-shell/docs/current/api/</link>
+										<link>https://docs.spring.io/spring-framework/docs/${spring.version}/javadoc-api/</link>
+										<link>https://docs.spring.io/spring-shell/docs/current/api/</link>
 									</links>
 								</configuration>
 							</execution>
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/images/logo.svg b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/images/logo.svg
index e4624f7..c6473a1 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/images/logo.svg
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/images/logo.svg
@@ -1,5 +1,5 @@
 <?xml version="1.0" standalone="no"?>
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "https://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg width="100%" height="100%" viewBox="0 0 358 237" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:1.41421;">
     <g transform="matrix(1,0,0,1,-9.9998,-60.6186)">
         <path d="M196.349,60.619C150.339,60.619 106.426,88.13 89.574,126.519C44.991,130.32 10,166.329 10,211.897C10,259.99 48.988,297.382 97.081,297.382L292.107,297.382C334.021,297.382 368,264.16 368,222.245C368,187.442 344.544,157.916 312.599,148.965C299.898,96.651 248.932,60.619 196.349,60.619M196.349,69.93C246.221,69.93 292.308,104.852 303.55,151.161L304.837,156.46L310.087,157.93C338.703,165.949 358.689,192.396 358.689,222.245C358.689,239.959 351.779,256.529 339.233,268.902C326.699,281.263 309.963,288.07 292.107,288.07L97.081,288.07C53.472,288.07 19.311,254.611 19.311,211.897C19.311,171.967 49.858,139.251 90.365,135.796L95.877,135.326L98.1,130.262C113.694,94.739 154.095,69.93 196.349,69.93" style="fill:rgb(50,181,47);fill-rule:nonzero;"/>
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl-config.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl-config.xml
index e4d677f..e354da1 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl-config.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl-config.xml
@@ -19,5 +19,5 @@
 	<highlighter id="properties" file="./xslthl/properties-hl.xml" />
 	<highlighter id="json" file="./xslthl/json-hl.xml" />
 	<highlighter id="yaml" file="./xslthl/yaml-hl.xml" />
-	<namespace prefix="xslthl" uri="http://xslthl.sf.net" />
+	<namespace prefix="xslthl" uri="http://xslthl.sourceforge.net/" />
 </xslthl-config>
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/bourne-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/bourne-hl.xml
index e2cd98d..90408ac 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/bourne-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/bourne-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for SH
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2010 Mathieu Malaterre
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/c-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/c-hl.xml
index 176cc37..7363dba 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/c-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/c-hl.xml
@@ -3,7 +3,7 @@
 Syntax highlighting definition for C
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/cpp-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/cpp-hl.xml
index ef83c4f..b31f736 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/cpp-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/cpp-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for C++
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/csharp-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/csharp-hl.xml
index d57e631..0937334 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/csharp-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/csharp-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for C#
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/css-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/css-hl.xml
index 164c48c..21439ae 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/css-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/css-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for CSS files
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2011-2012 Martin Hujer, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
@@ -26,7 +26,7 @@ freely, subject to the following restrictions:
 Martin Hujer <mhujer at users.sourceforge.net>
 Michiel Hendriks <elmuerte at users.sourceforge.net>
 
-Reference: http://www.w3.org/TR/CSS21/propidx.html
+Reference: https://www.w3.org/TR/CSS21/propidx.html
 
 -->
 <highlighters>
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/html-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/html-hl.xml
index 5b6761b..366cd46 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/html-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/html-hl.xml
@@ -7,7 +7,7 @@
   myxml-hl.xml - konfigurace zvyraznovace XML, ktera zvlast zvyrazni
                  HTML elementy a XSL elementy
 
-  This file has been customized for the Asciidoctor project (http://asciidoctor.org).
+  This file has been customized for the Asciidoctor project (https://asciidoctor.org).
 -->
 <highlighters>
   <highlighter type="xml">
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/ini-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/ini-hl.xml
index 34c1036..6bd60b3 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/ini-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/ini-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for ini files
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/java-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/java-hl.xml
index f7bb164..4fe3c1f 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/java-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/java-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for Java
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/javascript-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/javascript-hl.xml
index 99b8a71..9162040 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/javascript-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/javascript-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for JavaScript
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/perl-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/perl-hl.xml
index 73d71cc..c8a4d59 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/perl-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/perl-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for Perl
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/php-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/php-hl.xml
index 1da25b8..3ea1578 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/php-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/php-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for PHP
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/properties-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/properties-hl.xml
index 775f2f1..8205aac 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/properties-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/properties-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for Java
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/python-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/python-hl.xml
index a467443..72bf0db 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/python-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/python-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for Python
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/ruby-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/ruby-hl.xml
index d105640..a2cee72 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/ruby-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/ruby-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for Ruby
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2005-2008 Michal Molhanec, Jirka Kosek, Michiel Hendriks
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/sql2003-hl.xml b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/sql2003-hl.xml
index ac1d5d0..65c08a3 100644
--- a/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/sql2003-hl.xml
+++ b/spring-cloud-dataflow-server-yarn-docs/src/main/docbook/xsl/xslthl/sql2003-hl.xml
@@ -4,7 +4,7 @@
 Syntax highlighting definition for SQL:1999
 
 xslthl - XSLT Syntax Highlighting
-http://sourceforge.net/projects/xslthl/
+https://sourceforge.net/projects/xslthl/
 Copyright (C) 2012 Michiel Hendriks, Martin Hujer, k42b3
 
 This software is provided 'as-is', without any express or implied
diff --git a/spring-cloud-dataflow-server-yarn-h2/pom.xml b/spring-cloud-dataflow-server-yarn-h2/pom.xml
index d27dc2b..1d04058 100644
--- a/spring-cloud-dataflow-server-yarn-h2/pom.xml
+++ b/spring-cloud-dataflow-server-yarn-h2/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/xsd/maven-4.0.0.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/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>spring-cloud-dataflow-server-yarn-h2</artifactId>
diff --git a/spring-cloud-dataflow-server-yarn-shell-core/pom.xml b/spring-cloud-dataflow-server-yarn-shell-core/pom.xml
index 34a4c0d..bcfb78f 100644
--- a/spring-cloud-dataflow-server-yarn-shell-core/pom.xml
+++ b/spring-cloud-dataflow-server-yarn-shell-core/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/xsd/maven-4.0.0.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/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>spring-cloud-dataflow-server-yarn-shell-core</artifactId>
diff --git a/spring-cloud-dataflow-server-yarn-shell/pom.xml b/spring-cloud-dataflow-server-yarn-shell/pom.xml
index 440441e..eb1d68d 100644
--- a/spring-cloud-dataflow-server-yarn-shell/pom.xml
+++ b/spring-cloud-dataflow-server-yarn-shell/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/xsd/maven-4.0.0.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/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>spring-cloud-dataflow-server-yarn-shell</artifactId>
diff --git a/spring-cloud-dataflow-server-yarn/pom.xml b/spring-cloud-dataflow-server-yarn/pom.xml
index 7b6096b..18ee6f3 100644
--- a/spring-cloud-dataflow-server-yarn/pom.xml
+++ b/spring-cloud-dataflow-server-yarn/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/xsd/maven-4.0.0.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/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>spring-cloud-dataflow-server-yarn</artifactId>