I have a couple of design/architectural questions that always come up in our shop. I said "our", as opposed to "me" personally. Some of the decisions were made and made when J2EE was first introduced so there are some bad design choices and some good. In a web environment, how do you work with filters. When should you use J2EE filte...
When building my EJB project with maven, maven expects the ejb-jar.xml to be in META-INF/. However; I need to be able to put it in directoryA/META-INF. maven-ejb-plugin doesn't seem to provide a parameter for specifying where ejb-jar.xml is. Can you point me in the right direction? ...
Hi all, how can I prevent Ant to process a task if a source file is older than the current target. For example, I created a javacc file MyParser.jj and there is no need for javacc to re-generate the file MyParser.java as long as the MyParser.jj is older than MyParser.java. Thanks ...
I am now trying to detect memory leak in our java codes. I understand there are a few of detection tools such as memory manager that comes with eclipse, and NetBeans. Based on your experience, which is the best free tool out there I can use? I tried memory manager, but it is not very easy to detect where the leak is. I heard that NetBean...
Hi I have a really weird issue with Java and SSL certificates. Hope someone can help. A web is running in a cluster of 3 identical servers All servers contain "Application A" which is a JSR-168 portlet. "Application A" uses a web service that runs on httpS://webservices.domain.com/ "Application B" also uses a web service on httpS://w...
I have following in my applicaionContext.xml <bean id="IbatisDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="oracle.jdbc.OracleDriver"/> <property name="url" value="jdbc:oracle:thin:@123.210.85.56:1522:ORCL"/> <property name="username" value="mydb"/> ...
I've got several Portlets with some links in them, all I want is to hide the URL params. So I thought it would be easy to include some jQuery code, which builds a form for each and binds a click event on it to submit the form. This does not work. The action request isn't hit for some reason. Does anyone have a different suggestion for...
I use a Windows OS library to manipulate image files. Sometimes it crashes deep inside it for no apparent reason—all the inputs are reasonable and its not a threading issue. The crash is memory A/V. So, what are the down sides to something like this: try { pFoo = OsAPIThatCrashes(); } catch { pFoo = NULL; } Will that even work?...
Looking at the specifications for DLNA, most of the metadata communication appears to be soap based. However I can't find anything like a WSDL for any of the various services. Instead there is some sort of service description language that looks like this: <scpd> <serviceStateTable> <stateVariable> <Optional /> <name...
In Intelli-J IDEA is to possible to have multiple items in your clipboard and selectively choose the item before pasting. Also, what would the keyboard shortcuts be? ...
Hi there, I have a very specific question. I want to compile an ActionScript project within Java in-memory with the help of the Flex Compiler API ( http://livedocs.adobe.com/flex/3/compilerAPI%5Fflex3.pdf ). My last problem is to add images (jpg, png) that are embedded in the project to the compiler. I don´t see a possibility to do thi...
I created a Jar file from my java code : public void create() throws IOException{ FileOutputStream stream = new FileOutputStream(this.packagePath); JarOutputStream out = new JarOutputStream(stream, new Manifest()); out.close(); //jarFile = new JarFile(new File(this.packagePath)); } I get a META-INF directory, with a MANIFEST....
Design question for using Business Objects as formBackingObjects in a Spring SimpleFormController. Our controller's responsibility is to allow an End User to add a new Business Object to our web application. So we are passing our Business Object though the formBackingObject(HttpServletRequest request) method. However, we've run into a...
Hello, I'm using JMF to capture video stream (webcam) on my Java project. The camera I'm using is recognized by JMF (JFMStudio) and I manage to get the video stream. However, on JMF Registry Editor - there's a list of available capture devices, when I click "Add" on one of the items (including the one I need) I get a "Could not add it...
For instance, is the following legal public class Foo { private native int bar; } ...
I have a root element in my output xml document that has no attributes: <?xml version="1.0" encoding="UTF-8" standalone="no"?> <root> .. </root> I need it to look something like this: <?xml version="1.0" encoding="UTF-8" standalone="no"?> <root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="my.x...
In my data structures class, we've been assigned a project in which we are required to make a fully functioning Quantum Tic Tac Toe game in which a player faces a bot that plays to win. The professor suggested we use a game tree in our AI. However, as usual, I am looking for something more challenging. Can anyone suggest a better, mor...
I got a eclipse project that was working OK. One day I had to format my machine, so I copied my workspace into a backup, after installing eclipse again, I imported my projects from my backed up workspace. What happened is that it corrupted all the string that contains special characters.. like.. é, são, etc.. to É, são... Is there ...
I've done my best to make a simple java implementation of the neural network knight's tour finder but I'm completely stumped as to why it fails to work.. there are 6 classes, 3 for the GUI which im pretty sure works fine, and 3 to deal with the actual logic etc. If you are wondering, this is inspired by Yacoby's python offering He h...
I have a asynchronous web service using axis2 which I call two different times using the same CallBack Hanlder as follows : stub.startGetData("Foo",callbackhandler) stub.startGetData("bar",callbackhanlder) ServiceCallBackhandler callbackhandler = new ServiceCallBackhandler() { .....}; //ServiceCallBackhanlder and stub are generated...