Radio Liferay

Welcome to Radio Liferay, a peek into what is going on in Liferay from the people doing it themselves.


Latest Broadcast

Radio Liferay Episode 60: Performance and Permissions with Preston Crary

  An episode on the "Per" things: Performance and Permissions. I spoke to Preston Crary, who amazingly was not mad at me for losing an earlier recording.

We're talking about these (and more) topics

  • We open with the attention to detail that's required for working on performance tuning and some short conversation about this topic.
  • Sadly, there's not often a single silver bullet, but many areas of dust.
  • Sometimes the fastest code is not the most optimal
  • Continuing with Preston's work on Permissions:
  • ResourceBlock is deprecated, and there's an easy migration path
  • The usecase for Resources, ResourcePermission, and ResourceBlocks (as they're not at all visible on the UI)
  • Preston's way through Liferay from Support to working on the topics that he's now working on
  • The new API for Permissions - and the documentation is also done already (as of me writing this article, not yet published, but available on github - should be a matter of days or hours)
  • Should you implement your own permission system? (and how the answer to this question might change in 7.1)
  • Upgrades are being performance tuned. I smell a future episode coming up. Paging the team that is working on this area
  • The remarkable memory savings that refactoring the UserBag introduced
  • What happend during login
  • Passwords are PBKDF2WithHmacSHA1/160/128000 hashed, a deliberately expensive password hashing algorithm.
  • LPS-75747 and an update to my hardball question: Document Library's default.xml is still in core, can't be updated through a module, just through an ext.

Follow @RadioLiferay, Preston and me (@olafk) on twitter.

You'll find this episode - and make sure that you don't miss any of the future episodes - by subscribing to You can also subscribe on itunes.: Just search for "Radio Liferay" or just "Liferay" in the podcast directory. Make sure to write a review for the podcast directory of your choice - or find everything about Radio Liferay on

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Threaded Replies Author Date
Clicked the link to and Chrome... Dante Wang March 28, 2018 8:37 PM
Whoops, sorry - Something went wrong in the... Olaf Kock April 3, 2018 1:05 AM

Clicked the link to and Chrome warned me about invalid cert...
Posted on 3/28/18 8:37 PM.
Whoops, sorry - Something went wrong in the reconfiguration of that server. Non-https works for now, it's just a forwarder to anyways...
Thanks for letting me know
Posted on 4/3/18 1:05 AM in reply to Dante Wang.

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Radio Liferay Episode 31: Neil Griffin

 This week's guest is Neil Griffin, Liferay's resident JSF Wizard, Lead Engineer for Liferay Faces and representative for Liferay on the Portlet-Spec 3.0 group (JSR 362).

Here are our topics:

  • Liferay Faces started with, a cooperative work by Triton and Mimacom. Neil started at Triton, then came to Liferay and Triton and Mimacom donated the code.
  • Liferay Faces (LF) consists of LF Bridge, LF Alloy, LF Portal, LF Util.
  • You can find a lot of Demos for integration with different components, LF Alloy, Icefaces, Primefaces, RichFaces, InterPortletCommunication. (find Demos)
  • The history and problems with earlier JSF versions (esp. Version 1) in Portlets: JSR-329 standardized a standard portlet bridge, those were typically built independently of the portals.
  • With JSF 2.0 the integration into portlets got easier and the problems vanished.
  • We have 20 Legends now - thanks for all the forum participation
  • How does a portlet bridge work and why do values end up in the session even though we've declared them to be request-scoped? E.g. what phases from the JSF lifecycle are bridged to what phases in Portlets?
  • With JSF 2.2 one can finally go stateless, previous versions have been strictly stateful.
  • AlloyUI 2.0 and its integration into Liferay Faces Alloy, a JSF implementation that utilizes AlloyUI and YUI components.
  • Liferay Faces 4.1/4.2 is targetting Java EE 7 (e.g. JSF 2.2) and 4.2 is planned to be released with Liferay 6.2.
  • Liferay Faces is distributed through Maven Central, thus it's ready for use and the release is technically independent of Liferay.
  • Liferay IDE already integrates JSF in the "New Portlet" Wizard, and it will become a lot better in the next versions
  • Neil's JSR involvement (JSR 314, JSF 2.0, JSR 344, JSR 2.2, JSR 362 Portlet 3.0)
  • Due to the involvement in the new portlet standard: What's the Portlet 3.0 committee working on?
  • CDI Context & Dependency Injection, Conversation Scope, liferay-cdi-portlet-bridge.jar, Implementations: JBoss Weld, Open WebBeans, Resin Candi
  • Shoutout to the various cooperators, e.g. from RedHat: Ken Finnegan, Stan Silvert, Pete Muir & Jozef Hartinger, from Oracle: Ed Burns, Mike Freedman, Roger Kitain, Manfred Riem, many Liferay Engineers
  • Neil will be at DevCon in Berlin and at other upcoming symposium(s?)

Follow Neil, RadioLiferay or me on twitter

Again, shoutout and big thank you to Auphonic for postproduction help. This is a fantastic service!

You'll find this episode - and make sure that you don't miss any of the future episodes - by subscribing to You can also subscribe on itunes.: Just search for "Radio Liferay" or just "Liferay" in the podcast directory.

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