GlassFish 4.1 was released a couple of months ago now, bringing with it a large number of welcome bug fixes and improvements. As the Payara Open Source project was born from it, it would be remiss of us not give all of you who maintain an interest in GlassFish a brief overview of some of the things that have changed or been updated since 4.0. Among these changes, the minimum JDK version required is now 7 Update 65, or 8 Update 20, so you'll need to update if you intend to use it with anything less; it likely just won't start otherwise!
Updated Platforms and Specifications
As you might expect from any major update to an application server (even if it is just a minor point release), and particularly since GlassFish still holds itself as the Java EE reference application server, there is now support for more recent platforms and Java EE specifications.
Java SE 8
Arguably the headline new feature, GlassFish 4.1 now supports Java SE 8, bringing it up to date with the latest Java specifications. This brings with it all of the new features available in Java 8, such as Lambda expressions, a brand new Date and Time API, and concurrent accumulator classes. There’s quite a stir around the introduction of Lambda expressions, and how it adds some functional programming “oomph” to the Java language.
PermGen No More? Read the complete article here
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