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• How You Helped Shape Java EE 7...

  - by reza_rahman

  I have been working with the JCP in various roles since EJB 3/Java EE 5 (much of it on my own time), eventually culminating in my decision to accept my current role at Oracle (despite it's inevitable set of unique challenges, a role I find by and large positive and fulfilling). During these years, it has always been clear to me that pretty much…

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• Java and .NET cost of use [on hold]

  - by 1110

  I work with .NET technology stack for about 4 years. I am learning and enjoy working with ASP MVC framework and I never did anything serious in other languages. This is not the question like what is better (I read all similar questions). What interest me is the cost of switching. For example: If you are about to start a start-up company today…

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• Reusing OAuth request token when user refresh page - Twitter4j on GAE

  - by Tahir Akram

  Hi I am using Twitter4J API on GAE/J. I want to use the request token when user came to my page. (called back URL). And press refresh button. I write following code for that. But When user press refresh button. I got Authentication credentials error. Please see the stacktrance. It works fine when user first time used that token. …

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• Hibernate+PostgreSQL throws JDBCConnectionException: Cannot open connection

  - by Omer Salmanoglu

  false true auto thread org.postgresql.Driver 1234 jdbc:postgresql://localhost/postgres postgres public org.hibernate.dialect.PostgreSQLDialect false true org.hibernate.transaction.JDBCTransactionFactory false false false false 100 When I press "Save" button I get the following exception: javax.servlet.ServletException:…

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• JSF HIBERNATE POSTGRESQL

  - by user312619

  When I press "Save" button I get an exception like that ; javax.servlet.ServletException: org.hibernate.exception.JDBCConnectionException: Cannot open connection javax.faces.webapp.FacesServlet.service(FacesServlet.java:325) root cause javax.faces.el.EvaluationException:…

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• java.rmi.UnmarshalException: unable to pull client classes by server

  - by andrews

  Hi, I have an RMI client/server set-up on two machines that works fine in a simple situation when the server doesn't require a client-side defned class. However, when I need to use a class defined on the client side I am unable to have the server unmarshall those classes. …

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• How to learn high-level Java web development concepts

  - by titaniumdecoy

  I have some experience writing web applications in Java for class projects. My first project used Servlets and my second, the Stripes framework. However, I feel that I am missing the greater picture of Java web development. I don't really understand the web.xml and…

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• How to make sure Solr/Lucene won't die with java.lang.OutOfMemoryError?

  - by taw

  I'm really puzzled why it keeps dying with java.lang.OutOfMemoryError during indexing even though it has a few GBs of memory. Is there a fundamental reason why it needs manual tweaking of config files / jvm parameters instead of it just figuring out how much memory…

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• Error in java code.

  - by user243680

  I am getting the following error when i try to use a blue tooth dongle to transfer a video file from pc to mobile phone. does anyone know run: BlueCove log redirected to log4j log4j:WARN No appenders could be found for logger (com.intel.bluetooth). …

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• Could you please suggest any good books for Java EE

  - by attal

  Hi people, I am comfortable with Java SE 6 and I wanted to go deeper into Java by learning Java EE 6. However, I am confused and I don't know which book(s) should I read to master Java EE 6 (I have never learned Java EE previously). Could you please suggest any…

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• Boston: Free Java Developer Event March 3rd!

  - by Jacob Lehrbaum

  Attention Boston area developers!  Oracle has been running a series of free one-day Java Developer events in the US, Europe, and Asia since last November, and on March 3rd, this highly popular series is coming to the Westin Copley Place in Boston.  The…

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• scalablity of Scala over Java

  - by Marcus

  I read an article that says Scala handles concurrency better than Java. http://www.theserverside.com/feature/Solving-the-Scalability-Paradox-with-Scala-Clojure-and-Groovy ...the scalability limitation is confined specifically to the Java programming…

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• Java - learning / migrating fast

  - by Yippie-Kai-Yay

  This is not one of those questions like "How do I learn Java extremely fast, I know nothing about programming, but I heard Java is cool, yo". I have an interview for a Java Software Developer in a couple of weeks and the thing is that I think that I…

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• Java - learning / migrating fast

  - by Yippie-Kai-Yay

  Hello! This is not one of those questions like "How do I learn Java extremely fast, I know nothing about programming, but I heard Java is cool, yo". I have an interview for a Java Software Developer in a couple of weeks and the thing is that I…

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• Java Plugin - Firefox

  - by Tomassino

  Having trouble getting Java to work with Firefox (22), I have followed the advice in this question and on the official Java site, but nothing seems to work. I have the latest Java (1.7.0_25) in /opt/java and have set a symlink in…

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• Maker Faire 2012 Attendees build with Java Technology

  - by hinkmond

  Looks like Daniel Green, systems engineer from Oracle, and the panel of Java experts had a successful Java Technology booth at this year's Maker Faire 2012. See: Maker Faire 2012 adds Java Here's a quote: "We made a huge…

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• Understanding the Java Ecosystem

  - by syrion

  I have traditionally had the "luxury" of being a one-man development team. I've used Python extensively, have a reasonable command of Perl, PHP, and JavaScript. My problem is Java. I can write Java code. I'm not great at…

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• Active - like-minded Java mailing lists

  - by Lewis Robbins

  I need to find an active Java mailing list, I have looked onto the GNU Java mailing list, to my surprise there had been not too much activity this month, it also focused on any GNU related Java - I'd really help me progress…

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• how to learn Java

  - by Sarang

  This question I am asking because I couldn't find any source which gives complete overview of java development. I just want to know where java technology currently in market & what is preferable for development ! Java…

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• New Java Tutorials Updated

  - by hinkmond

  The new Java Tutorials are here! The new Java Tutorials are here! So what? So, you can read them on your iPad thingie--if that's how you roll, that is... See: Read New Java Tutorials Here's a quote: What's New …

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• New to Java Programming - Error help

  - by JJJ

  I am going through a Java book and drafting the examples and have run into the following error when compiling this code. Any help would be appreciated thank you. Error: Main.java:3: class Addition is public, should be…

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• From J2EE to Java EE: what has changed?

  - by Bruno.Borges

  See original @Java_EE tweet on 29 May 2014 Yeap, it has been 8 years since the term J2EE was replaced, and still some people refer to it (mostly recruiters, luckily!). But then comes the question: what has changed…

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• Java RMI (Server: TCP Connection Idle/Client: Unmarshalexception (EOFException))

  - by Perry Dahl Christensen

  I'm trying to implement Sun Tutorials RMI application that calculates Pi. I'm having some serious problems and I cant find the solution eventhough I've been searching the entire web and several javaskilled people. I'm…

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• java.sql.SQLWarning: [Microsoft][SQLServer 2000 Driver for JDBC]Database changed to X

  - by adisembiring

  Hi all, I'm using Hibernate 3.2.1 and database SQLServer2000 while I'm try to insert some data using my dao, some warning occurred like this: java.sql.SQLWarning: [Microsoft][SQLServer 2000 Driver for…

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• The Java Specialist: An Interview with Java Champion Heinz Kabutz

  - by Janice J. Heiss

  Dr. Heinz Kabutz is well known for his Java Specialists’ Newsletter, initiated in November 2000, where he displays his acute grasp of the intricacies of the Java platform for an estimated 70,000…

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