Tuesday Jan 28, 2014

New Performance Tools for Java 7

By Michael Williams, Principal Curriculum Developer

Have you ever wished for an easy way to monitor your application's performance and analyze the application's performance over time? With the release of Java 7 u40, your wish has just come true. 

Two tools are are now bundled with the Java JDK. Both tools have been around for a while as part of Oracle Fusion Middleware, but now have been ported to the Hotspot JVM.

Java Mission Control

Java Mission Control is a live monitoring and analysis tool for Java 7. This tool lets you monitor live data coming from a running JVM. Mission Control has a modern, customizable user interface which allows you to chart only the data you're interested in. In addition, the triggers feature lets you notify specific personnel about key events that occur in your application. Finally, Mission Control can load recordings from Java Flight Recorder for detailed analysis.

Oracle Java Flight Recorder

Oracle Java Flight Recorder is a tool for recording key information about your application over time. Much like an airline flight recorder, Java Flight Recorder stores key telemetry from your application as it runs; it then loads recordings into Mission Control for detailed analysis. Recordings can be run continuously on your applications with minimal impact on performance.

Java Performance Tuning with Mission Control and Flight Recorder Training

Interested in learning more about these tools?

Oracle University has released the new Java Performance Tuning with Mission Control and Flight Recorder course. This course deep dives into Oracle Mission Control and Flight Recorder, along with other interesting performance-related information, including:

  • Details about how garbage collection works in the JVM.
  • A detailed review of the garbage collectors available in Hotspot, including the new G1 garbage collector.
  • Profiling your application using NetBeans and other tools.
  • Detecting and troubleshooting common performance issues like memory leaks and contention issues.
  • Tuning guidelines for each of the Java garbage collectors.

Sound interesting? If so, sign up today! 

Friday Feb 22, 2013

Top 7 Reasons to Learn Java SE 7 Now


Have you updated to Java SE 7? If you haven’t, check out the top 7 reasons to do so below.

7.  More companies are now running Java SE 7.

The end of the publicly available release of Oracle JDK 6 was February 19, 2013 so more companies will be running Java SE 7. If you haven’t downloaded Java SE 7 yet, now may be the perfect time to do so.

6.  Java SE 6 and Java SE 5 updates require Oracle Support.

As of February 19, all new Java SE 6 and Java SE 5 security updates, patches and fixes are now only available through My Oracle Support; thus requiring a commercial license with Oracle.

5.  Stay current with automatic updates.

Oracle started auto-updating Windows 32-bit, Java Runtime Environment (JRE) users from JRE 6 to JRE 7 in December 2012.

4.  Java skills are in high demand.

Java skills are in high demand, so being familiar with the latest version keeps your skills current, giving you an edge in the job market.

3.  Improved features will make your life easier.

Java SE 7 is new and improved. Get a hands-on introduction to the new features (Fork/Join, NIO, diamond notation) with the Java SE 7 New Features course.

2.  Java SE 7 training is now available.

Oracle University's Java SE 7 New Features course is available in a traditional classroom environment and as a Live Virtual Class (LVC) event. It is also available in the new Training On Demand (TOD) format, giving you the flexibility to take the training  any time, from anywhere in the world.

1.  Earn valuable IT credibility with a Java SE 7 certification.

Earn well-respected credentials by becoming certified in the newest version of Java SE 7. If you're certified in Java SE 6, you can combine your Java SE 7 New Features training with your certification upgrade and actually save 20%. If you're getting certified for the first time, other Java SE 7 certification discount packages are also available. 

Now that you know the top seven reasons to learn Java SE 7, take a look at the Java SE 7 learning paths to help you get started!

- Jerilyn, Oracle University Curriculum Product Manager

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