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Open JDK

Much of what you do in Java is to define classes that package data and functionality together by concept to represent the desired problem-space element. When you instantiate a class, you create an object that has it's own piece of memory made up of other objects. Java has a peculiar means of manipulating these elements in memory. This is to say even though you treat everything as an object, you...
on Oct 25, 2013
Each of these objects can be described in terms of the classes or types to which they belong for instance a maple tree belongs to the class of tree or is a type of tree, a bicycle is a type of cycle, a car is a type of vehicle. OOP is thus a very powerful language abstraction that allows you to simplify the complexity of a problem while retaining its value. Java is an Object Oriented...
on Oct 16, 2013
2013-09-25 Table of Contents 8:30am - nuvos: the Universal SDK case-study backend frontend features 10:00am - OAuth 2.0 : A Standard is Coming of Age 11:30am - Java Flight Recorder Behind the Scenes Last Modified : 2013 Sep 26 (Thu) 16:25:00 by carr. Wednesday, Sep 25, 2013 8:30am - nuvos: the Universal SDK Kevin McCarthy - President / CEO, IntraMeta This presentation is...
on Sep 26, 2013
2013-09-24 Table of Contents 8:30am - Functional Reactive Programming with RxJava 10:00am - The JVM is dead! Long live the Polyglot VM! 1pm - invokedynamic in 45 minutes java.lang.invoke bytecode your turn 3pm - Wholly Graal - Java on GPU graal overview GPU offload 5:30pm - Experimenting with the Boundaries of Static Typing 7:30pm - Developing Small Languages with Scala Parser...
on Sep 24, 2013
Lambda Expressions (JSR 335) are perhaps the most significant innovation in Java 8. Many consider Lambdas (or 'closures') a game-changing technology for the Java language. Our most recently completed Java.net poll asked the community for its take on the significance of Lambda Expressions as they pertain to company decisions on how quickly to migrate to and adopt Java 8. A total of 490 votes...
on Jul 27, 2013
Java 8 will introduce (or introduces it depends if you have already played with the betas or not) a new full featured feature, lambdas. Instead of explaining the syntax, the semantics, how it's integrated with java.util, yada yada. Let's take an example and see how lambdas can be used by users and developers of APIs. Let suppose I want to design a JUnit/TestNG replacement, basically these two...
on Jun 10, 2013
I'm very proud to announce that in order to be fully compatible with the new multi-core era, we (the lambda expert group) have decided to deprecate the class syntax in Java 8 and to remove it in Java 9. With the introduction of lambda, classes are not needed anymore and are now seen as stimagata from the past. so instead of writing a class User like this: public class User {  private final...
on Apr 1, 2013
   In last week was born the SouJavaLivre in Brazil, its main objective is disseminating and help to envolve the java free and  the OpenJDK in country. For does that there are some sub-projects:    Support to Adopt OpenJDK : With list in Portuguese also some tutorial in Portuguese to help the people to adopt the JVM's reference, but helping and with integration...
on Jan 22, 2013
JDK Enhancement Proposals (JEPs) are a public record of proposals for updating and enhancing the OpenJDK. JEP 1, the JDK Enhancement-Proposal and Roadmap Process, created in 2011, describes the "process for collecting, reviewing, sorting, and recording the results of proposals for enhancements to the JDK and for related efforts, such as process and infrastructure improvements." If you're...
on Jan 20, 2013
Our most recently completed Java.net poll suggests that the Java developer community is paying some attention to the progress of the Lambda Expressions (closures) component of Java 8. Of course, the poll is by no means scientific. A total of 332 votes were cast in the poll. The exact question and results were: What's your current level of involvement with Java 8 Lambda Expressions (closures...
on Dec 12, 2012
During a JavaOne 2012 keynote, I scribbled down a list of key enhancements that are planned for inclusion in Java 8. Among them was Nashorn. At the time, I didn't know much about Nashorn. But, now that John Coomes has formally proposed the creation of an OpenJDK New Project: Nashorn, it seems appropriate to take a closer look. Nashorn has sufficient visibility to have a brief Wikipedia entry,...
on Dec 1, 2012
In the most recently completed Java.net poll, a majority of the voters indicated a preference for having major Java releases on a predictable schedule (either a fixed number of months, or a narrow range of months). A total of 683 votes were cast in the poll, and one comment was posted. The exact question and results were as follows: Should Java have a timed release schedule (for example, a new...
on Aug 29, 2012

Java Web Services and XML

2013-09-23 Table of Contents 10:00am - Looking into the JVM Crystal Ball JDK 7 JDK 8 Removing Permanent Generation (JEP 122) Tiered Compilation Memory Footprint JVM Future Cloud Manageability and Observability Multi-Language Scalability JVM Components Compiler GC Runtime Serviceability Misc Participate 11:30am - Purely Functional Data Structures Mutability 1pm - Performance...
on Sep 24, 2013
    Nowadays there are too many NOSQL database, with different architecture and data structure. However with much variety they share one thing in common: Only search information from the keys. A good option is uses other service to help the NOSQL databases. In this post will how the Lucene does work together a NOSQL database, join two world in one application.     The...
on Oct 13, 2012

Java User Groups

The Cassandra's data base is a NOSQL column family's oriented, is a data base made to work of high performance, scalability and fault tolerant. In your new version, it gets some improvements like Cassandra Query Language third version, CQL 3.0 with storage with collections and key complex. With improvements in Cassandra, there is a one problem: How do I use all potential of the Cassandra...
on Jul 23, 2013
Meruvian's blog is here.. yes, in java.net now. This is because we believe that we will get more attraction if blog here. and we are blogging in English here. We also have our own blog server power by Apache Roller, take a look http://blogs.mervpolis.com. The main reason we blog here, to promote what is Meruvian and the work around Meruvian. A lot of friends asked about how can Meruvian survive...
on Sep 21, 2012

Java Desktop

Tuesday at Jfokus 2013 started in a large auditorium filled with more than 1500 Jfokus attendees, who heard Jfokus founder Mattias Karlsson launch the conference in an introduction that included an appearance by Stephen Chin, who had spent the previous night sailing the icy Baltic Ocean on the Vaadin Cruise from Finland. The conversation also introduced a new Java Champion, JRuby's Charles...
on Feb 5, 2013
A quick, hopefully readable analysis of this week's security exploit and fix over at my new blog
on Jan 15, 2013
After days work with my Raspberry PI, and a silly stuff happen here (for days i cannot install the .img to my SD Card, because the white button in my SD Extender in write protected mode).. Yes, now working well.. I tought I got the unworking Raspberry PI.. hahaha. Now I am working with Java on ARM anyway. But I got Zero JVM for ARM... (Still working to install in my wheezy environment, there is a...
on Jan 12, 2013

Java Patterns

        Launched the latest Easy-cassandra version, that come with improvements to manage multi-nodes. Use many node is very usefully in Cassandra because avoid bottlenecks, fault tolerance, elasticity.     After have multi-nodes in Cassandra, the next step is divide task between their. Secondly join the databases like only one ( reply all information among their...
on Oct 3, 2012