Oracle has released the first JDK 8 Developer Preview builds for Windows, OS X, Linux, and Solaris platforms.
Oracle Java 8 was delayed earlier this year
over Project Lambda, an effort to add closures to the Java language. This week's DP release does incorporate the said functionality that allows for easier multi-core programming.
The developer preview build of Java JDK 8 can be found at jdk.java.net
. Due to the earlier Java 8 delays, the final release of Java 8 isn't expected from Oracle until early 2014.