Arjan Tijms' Weblog

Piranha 20.1.2 has been released :) In total 59 issues were done for this release, which mostly included work for Piranha Micro, but also includes improvements for Servlet compatibility among others. Note that Piranha is a work in progress and not yet ready for regular use, let alone production usage. Piranha itself is an upcoming Jakarta EE and MicroProfile runtime, currently in its early stages of development. Piranha's main goal is to use Jakarta APIs as much as possible as a library, using a flat class loader, and no concept of deploying applications, in other words without being an application server. Piranha Micro however builds on the core Piranha foundation to deliver something that comes closer to a server; it can run a single application in archive form, albeit it can't undeploy and redeploy (this is on purpose). Specifically for embedded use it features an isolated class loader. Contrary to a traditional application server where an isolating class loade...

We're currently hard at work with our Piranha runtime implementation. Piranha is a new Jakarta EE and MicroProfile runtime build from scratch. A distinguishing feature is that it's build from the ground up to use Jakarta EE and MicroProfile as a framework, which means without any (application) server bits. This is essentially how you would use a mock framework for Jakarta EE, except that with Piranha it's the actual runtime. Piranha Micro takes the framework bits and with a minimal amount of glue code assembles these into what resembles a more traditional Jakarta EE Server (including an HTTP stack and the ability to run a single war archive). We'll be blogging about some interesting features this version of Piranha has soon. For now just a small status update, and that's that we're working hard on compatibility. Last month we passed the MicroProfile JWT TCK (which infers a certain minimal level of compatibility with CDI, Jakarta REST and MicroProfile Con...