JDK 8u121, 7u131, and 6u141 releases are now available. You can download the latest JDK releases from the Java SE Downloads page.

For information on features and fixes included in these releases, see the following release notes:

• JDK 8u121 Release Notes
• JDK 7u131 Release Notes
• JDK 6u141 Release Notes

This release of JDK 8u121 also includes JDK 8u121 for ARM. Information about this product is included in the Java™ Development Kit for ARM Release Notes 8 Update 121.

The Advanced Management Console is a commercial product available as part of Oracle Java Standard Edition (SE) Advanced and Oracle Java SE Suite. The Advanced Management Console helps you manage the use of Java versions and Java applications in your enterprise.

• The 2.5 version adds the following features:
• Java Usage Tracker (JUT) collection in Advanced Management Console agents
• Java Runtime Environment (JRE) Management on Mac OS X
• Simplified Application Names
• Displaying more information about Java applications:
• Includes Hostname/IP address
• Includes JRE paths

JDK 8u111, 8u112, 7u121, and 6u131 releases are now available. You can download the latest JDK releases from the Java SE Downloads page.

For information on features and fixes included in these releases, see the following release notes:

• JDK 8u111 Release Notes
• JDK 8u112 Release Notes
• JDK 7u121 Release Notes
• JDK 6u131 Release Notes

This release of JDK 8u111 also includes JDK 8u111 for ARM. Information about this product is included in the Java™ Development Kit for ARM Release Notes 8 Update 111.

Oracle is having a Java certification promotion. Check it out: 

Java Promotion - Save 35% on Java Certifications . Employers globally continue to need Java development skills. Advance your Java skills and receive 35% off qualifying upgrade exams. Get Certified!

On Thursday September 22, Oracle’s Aleks Seovic (Architect, Oracle Coherence) looks at the limitations of Java 8 lambdas in a distributed environment and the solutions Oracle has come up with while working on support for true distributed lambdas in Oracle Coherence. Session [CON6079] starts at 4:00 p.m.at the Hilton—Golden Gate 2/3

For information on lambda serialization, see The Java Tutorials - Lambda Expressions or Java™ Platform Standard Edition 8 API Specification.

For information on Coherence lambda support, see Introduction to Coherence Programming.

Today, Erik Helin (Senior Member of Technical Staff, Oracle) presents Technical Deep Dive into the G1 Garbage Collector [CON3889], which describes in detail how the Garbage-First garbage collector (G1GC) works and how to use the G1GC logs to obtain more information.

The conference session takes place on Thursday, September 22nd at 2:30pm at the Hilton, Continental Ballroom 5.

For more information, see Garbage-First Garbage Collectior.

On Wednesday, Brenton Phillips, (Software Developer, Oracle) presented session CON2806 on security vulnerabilities. The session took the form of tricky Java code-level security vulnerability puzzles and attendees studied and solved these puzzles together. They also saw a security-focused static source code analyzer in action and left with techniques for cultivating a culture of security in programming. The session took place at 3:00 p.m. - 4:00 p.m. at the Hilton - Golden Gate 2/3.

For more information, see Java Security Overview.

On Thursday, September 22nd (Poonam Parhar, Consulting Member of Technical Staff, Oracle) presents session CON1640, with information about tools and utilities to troubleshoot problems such as memory leaks, or crashes in the Java HotSpot VM.

This session takes place at 11:30 a.m. Hilton - Continental Ballroom 4

For more information, see Troubleshooting Guide, Tools Guide, HotSpot VM Garbage Collection Tuning Guide

On Thursday, September 22nd (Mattias Jiderhamn, Architect and Lead Developer) presents session CON1472, where you will learn about the Java memory model to analyze the java.lang.OutOfMemoryError.

This session takes place at 1:00 p.m. Hilton - Yosemite A/B/C

For more information, see Understand the OutOfMemoryException

Today Andrzej Grzesik presents session CON3166. Taking memory dumps, doing stack traces of Java processes running in a particular system, and monitoring GC activity can all be done with the jcmd command. This session iterates through several usages and shows what’s possible, including demonstrations of most possibilities.

This session takes place from 11:30 a.m. - 12:30 p.m. at the Hilton - Continental Ballroom 7/8/9

For more information about jcmd, see:

• jcmd tools page
• jcmd examples in the Using Diagnostic Commands (Java Flight Recorder Runtime Guide).

On Wednesday, September 21, Ioi Lam, Software Engineer, and Jiangli Zhou, Software Developer, both at Oracle, present Leveraging Application Class Data Sharing to Optimize Application Startup and Memory Footprint in the Cloud.

Application Class Data Sharing (AppCDS) is an experimental feature that lets you share application-class metadata across multiple VM instances to significantly optimize memory footprint and shorten startup time.

For more information about AppCDS, see Application Class Data Sharing.

Join Ram Lakshmanan (Founder, GCEasy.io & fastThread.io) Wednesday September 21 to learn how to analyze several different GC log formats and how to spot problems in those logs instantly. Session [CON3108] begins at 1:00 p.m. at the Hilton—Continental Ballroom 6.

For more information on garbage collection, see the GC Tuning Guide.

Today, Gill Tene (CTO, Azul Systems) presents Understanding Java Garbage Collection [CON5976] that introduces you to common garbage collection techniques such as generational, parallel, stop-the-world, incremental, and concurrent algorithms then discusses the trade-offs involved in balancing requirements for responsiveness, throughput, space, and available memory.

The conference session takes place on Wednesday, September 21, 11:30am at the Hilton, Continental Ballroom 5.

For more information, see the HotSpot Virtual Machine Garbage Collection Tuning Guide.

On Wednesday, 21st September, Michał Płachta, Team Leader, Ocado Technology presents "Building a Multiplayer Game with Streams". In this session, you will learn how stream-based programming can be used to implement a web front end and a multiplayer back end for the classic game 'Snake'. When we build dynamic applications with an imperative approach, it tends to create a lot of code, and maintaining this code poses a bigger challenge. Stream-based programming tries to solve this problem by introducing a fully declarative way of defining application logic. While using streams, you can just focus on what needs to be done, and not how and when.

The presentation is divided into three parts: “Front-End Code,” “Back-End Code,” and “Reactive Streams Intro.”

This session takes place from 4:30 p.m. - 5:30 p.m. at Hilton - Plaza Room B

For more information about Streams, see New and Enhanced APIs that Take Advantage of Lambda Expressions and Streams in Java SE 8.