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• Trigger a logout from a liferay portlet

  - by Buzzzz

  Hello all, Being quite new to liferay/portal/portlet development you run into problems daily . Now i'm trying to for a logout from a portlet but have not found a way to accomplish that. How are you supposed to do that? Should I try to send some kind of logout event or something? Greping around in the liferay sources i have found a…

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• How to send data from local PC to Google-app-engine application?

  - by vital-al-kapus

  I have to write client program in C# that have to take some data from DB and sent it to my Google application(Java). How can I do that? What is the best way to do that?

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• can't persist entities on app engine using jpa

  - by Bunny Rabbit

  i am trying to persist two entities(with one to many relationship) using jpa but on persit it throws an exception java.lang.IllegalArgumentException: out of field index :2 i'm struck.

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• Choosing an application server for web application development

  - by harigm

  My manager has asked me to suggest an application server for web application development work. What are the factors that needs to be considered before we select any application server for web application development in Java J2EE development? If I select one now and IN future and I want to change to some other application server,…

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• Technologies and standards in a Kindle

  - by danke

  I'm using the Kindle as an example of an embedded system to illustrate some points I'm making in a paper. Since I'm not an expert in all the technologies used, can those aware of them point them out. For example: the GUI is programmed in embedded Java (which is probably a bad choice) Whispernet is used for the wireless…

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• Select JavaHelp topic in TOC when using setCurrentID

  - by dcstraw

  When I use HelpBroker.setCurrentID("[some help id]"), JavaHelp correctly shows the page I want but the associated topic is not automatically selected/highlighted in the table of contents. This makes it difficult for a user to know where in the topic tree the current page is located. Is there any way to programmatically…

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• Eclipse: export running configuration

  - by Jack

  Hello, I wrote a complex Java application with eclipse that uses many .jar libraries included into project folder. Is there a quick way to export a running configuration of the application that allows me to run it from shell (I don't actually need to move it around machines, so no jar export or similar things). I just…

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• make a parameter of type byte array nullable in an axis web service

  - by lweller

  i have a java method that is part of an web service interface and that takes a byte array parameter like this public int computeSomeThind(byte[] data) { if(data != null) { // ... do what ever } else { return -1; } } When a generate the wsdl with axis 1.3 the data parameter will appear as not nullable.…

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• Including hibernate jar dependencies in ant build

  - by Patrick

  Hi, I'm trying to compile a runnable jar-file for a project that makes use of hibernate. I'm trying to construct an ant build.xml file to streamline my build process, but I'm having troubles with the inclusion of the hibernate3.jar inside the final jar-file. If I run the ant script I manage to include all my library…

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• Converting a string of text into alternate representations (binary, hex, ascii)

  - by Terri

  In Java, is there a simple method to convert the format of a given string? For example, I have the string "test22". I'd like the binary value and hex value. As well as possibly the ascii values of each character?

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• XEP-0080 User Location in Smack Library.

  - by Kristof

  Hi, I would like to create a simple XMPP client in java that shares his location (XEP-0080) with other clients. I already know I can use the smack library for XMPP and that it supports PEP, which is needed for XEP-0080. Does anyone have an example how to implement this or any pointers, i don't find anything using…

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• XPath find element based on ancestor element

  - by martymcfly

  Hi, again I have Java AST which is created from public class Test { String o = new String("hh"); public void wrong1() { synchronized(o) { // huhu } } } I try to create a XPath query which finds the synchronized block in which the defined String variable o is used. As…

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• any lib / api for filling in the field in microsft doc ?

  - by nightingale2k1

  Hi, I got a document that need to be filled in (it was in microsoft word doc), I have no idea how to filled in / integrated with my current web apps. is there any good java api / lib that could be used ? preferrably the free one. here is the example of doc that need to be filled in.…

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• JMF Output Stream

  - by rachel

  Does anyone have a simple example of how to take a local file and (unicast) stream it with Java JMF? Examples from others seem scarce.

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• When should I use Dependency Injection and when utility methods?

  - by Roman

  I have a Java EE project with Spring IoC container. I've just found in Utils class static method sendMail(long list of params). I don't know why but I feel that it would look better if we had separate class (Spring bean with singleton scope) which will be responsible for sending…

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• natural language processing internships

  - by user552127

  Hi All, Pls someone guide me in finding paid Grad internships in Natural Language Processing over the summer. I am really interested in NLP/ML and have taken up the excellent course offered at my school in Fall. I would be glad to work for passionate startups that do actual NLP…

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• Can you configure Spring-Security programmatically?

  - by jschoen

  I am working to configure Spring-Security with an existing application, for just basic security (i.e. what pages a user can see based on their roles). The question came up wondering if we could set what roles are required for each page in java instead of the…

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• Oracle thin driver vs. OCI driver. Pros and Cons?

  - by Zwei Steinen

  Hi, When you develop a Java application that talks to oracle DBs, there are 2 options right? One is oracle thin driver, and the other is OCI driver that requires its own installation (please correct if I'm misunderstanding). Now, what are the pros and…

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• How do I run .class files on windows from command line?

  - by AndrejaKo

  Hi! I'm trying to run .class file from command line. It works when I manually move to the directory it's stored in, but when I try something like this: java C:\Peter\Michael\Lazarus\Main it says it can't find the main class. Is there any solution to…

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• how to write programs that they use advanced OpenType features?

  - by Sorush Rabiee

  How could I write a simple program using OpenType tables in order to dynamically render text? please answer in : assembly , C , C++ , C# , java or Python (and a little WPF:-) or introduce libraries of them. comments and answers about text…

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• Chossing an application server for an web application development

  - by harigm

  My manager has asked me to suggest an application server for the web application development work, What are the factors that needs to be considered before we select any application server for web application development in Java J2ee…

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• Programmatically convert a video to FLV

  - by Raibaz

  Hi all, i am currently working on a web application that needs to accept video uploaded by users in any format (.avi, .mov, etc.) and convert them to flv for playing in a flash-based player. Since the site is OpenCms-based, the best…

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• pop a frame

  - by somya agrawal

  I am working on a project (Java, Swing) in which i have to pop a frame on clicking a hyperlink. but the coding for the frame and all its components is done in a different class and that hyperlink exists in a different class. what…

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• How to parse a xhtml ignoring the DOCTYPE declaration using DOM parser

  - by Rachel

  Hi I face issue parsing xhtml with DOCTYPE declaration using DOM parser. Error: java.io.IOException: Server returned HTTP response code: 503 for URL: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd%20 Is there a way to…

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• Use annotation to specify which classes/interfaces should be generate javadoc?

  - by ipkiss

  Hi, I have a java program and want to generate javadoc for classes/interfaces. However, I just want to generate javadoc for a certain classes and interfaces. I just want to know if there is any way that I can add an annotation…

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