use a url that makes sense for all platforms

docs-ref-conceptual/java-quickstart-maven-webapps.md

@@ -25,7 +25,7 @@ This quickstart helps you create and deploy a simple Java web app to [Azure App
 Before you start, set up the following:
 
 - [Git](https://git-scm.com/)
-- [Java 8](https://packages.ubuntu.com/xenial/java/default-jre)
+- [Java 8](https://www.azul.com/downloads/zulu/)
 - [Maven 3](http://maven.apache.org/download.cgi)
 - [Azure CLI 2.0](https://docs.microsoft.com/cli/azure/install-az-cli2)
 

docs-ref-conceptual/java-sdk-azure-get-started.md

@@ -22,7 +22,7 @@ This guide walks you through setting up a development environment with an Azure
 
 - An Azure account. If you don't have one , [get a free trial](https://azure.microsoft.com/free/)
 - [Azure Cloud Shell](https://docs.microsoft.coms/azure/cloud-shell/quickstart) or [Azure CLI 2.0](https://docs.microsoft.com/cli/azure/install-az-cli2).
-- [Java 8](https://packages.ubuntu.com/xenial/java/default-jre) (included in Azure Cloud Shell)
+- [Java 8](https://www.azul.com/downloads/zulu/) (included in Azure Cloud Shell)
 - [Maven 3](http://maven.apache.org/download.cgi) (included in Azure Cloud Shell)
 
 ## Set up authentication