The Servlet 4.0 specification is out and Tomcat 9.0.x does support it. Time to dive into Tomcat 9. [updated on Sep.2.2018] Prerequisite: Java Since OS X 10.7 Java is not (pre-)installed anymore, let’s fix that first. As I’m writing this, Java 11.0.1 is the latest version and AdoptOpenJDK is one of the best places to find Prebuilt OpenJDK […]
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Configuring multiple SSL certificates for a single Tomcat connector
Sometimes you may want the same Tomcat instance to respond to requests for more than just one hostname. For HTTP this can easily be accomplished, by mapping those hostnames to the same IP address, using the tools provided by your registrar. Supporting HTTPS for multiple hosts is more involved since the SSL certificates need to […]
Installing an SSL Certificate on Tomcat
If you have Tomcat installed on your Mac or Linux computer, like I have shown here and here, you may sooner or later want to serve content not only through HTTP, but also securely through HTTPS. Instead of going the self-signed certificate route, where the certificate is signed with its own private key, I’m describing […]
Custom wakeup-words for an Android app
With most modern Android phones, just saying the phrase “OK Google” will launch the Google assistant app, which is capable of answering simple questions, or functioning as a app launcher. Following up with “open g mail” will launch the Gmail app on your phone, or saying “navigate home”, will open the Google Maps app, with […]
Serverless compute with Java, on AWS Lambda
Serverless computing is a cloud computing execution model, in which the cloud provider dynamically manages the allocation of machine resources. Serverless computing allows running applications and services, without thinking much about servers, runtime resources, or scaling issues. A very simple serverless computing application is intended to be used as a template project, a model, or starting […]