EJB / EE :: Mavenize Existing Enterprise Application Containing Web Project
Apr 14, 2014
I am trying to mavenize an existing enterprise application and this application has EJB, MDB and MQs. As far as the folder structure is concerned, it has a project that creates an ear file, and has one for project for web and another project for EJBs. there is one more project that holds some property file.
I am trying to mavenize this this application, so that I am able to create an ear of application containing the war of web project, jars of property project and ejb project and I am badly stuck.
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Jul 23, 2014
I have an EJB project which is deployed in Webaphere 7 and i do not have source code for that project.I know the EJB session bean class name, can i generate the client for this class/project to invoke the session bean?
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May 2, 2014
I have a project of biometric integration by java and i have that javaApi with me for that project i need to add native libraries through NetBeansIDE7.4. I am trying like this
Right click on the ProjectSelect PropertiesClick on RUNIn VM Options TYPE
-Djava.library.path="D:/bio-metric/SBXPC_CORE_130330/SBXPCJavaProxy.dll"
press Ok but still I am getting Exception
java.lang.UnsatisfiedLinkError: no SBXPCJavaProxy in java.library.path
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Oct 9, 2014
I want to embed an existing JAVA applet in to my swing application which is a standalone application. The applet is used in some other application which is not developed by me or my company. The application is open source application (So I have the source code). The entire existing application is basically one of the parts of my new application.
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Jan 5, 2015
Say I have a EAR file. Inside, it has a EJB jar, web war and app client jar file. The (enterprise) app client here is a desktop GUI calling the EJBs accordingly. Now if this EAR is deployed to some app server like JBoss or Glassfish, to access the app client, users will basically use java web start/ JNLP to run the client.
Given this is the case, I'm wondering if the effect is the same as separating the app client (not part of the EAR), have that EJB jar in its library path, and deploy the GUI app as a jar. Hence users not use web start. The only disadvantage I can think for separating the app client is if the EJBs get changed, the client's version will be outdated. But other than that, are there any justification for using an enterprise app client?
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Jul 5, 2014
I have created one new enterprise aplication project called July2014. While creating I have added one new EJB module called July2014EJB for business logic and one new web module Called July2014Web for the UI(I see connector module and application client module what are the uses of them and when should i select them).I have addded one index.jsp with below sample code
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert gp title here</title>
</head>
<body>
<h1>test gp senterprise project web module through parent ear</h1>
[code]...
I did multiple times clean, build, publish, restarting the server.I have not done refreshing EAR, EJB and web project. how Refresh is useful and different from clean and build.
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May 9, 2014
I finish reading The EntityManager Interface in JEE tutorial. I know I can use container manager entity manager in EJB, but I want to explore how to use application managed entity manager in EJB.
Can I use application managed entity manager in EJB (container management JTA transaction is used)? Where do I should close entity manager if can?
The following is an example from JEE tutorial, but didn't find where to calose entity manager. and can I create mutiple EntityManagerFactory objects and Entity Manager objects to use them in a JTA transaction?
@PersistenceUnit
EntityManagerFactory emf;
EntityManager em;
@Resource
UserTransaction utx;
[Code] .....
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Jul 5, 2014
Deploy sample J2EE app to WebLogic server
A getting started app is fine, need to understand of deploying a sample application to WebLogic server. Any particular configuration during WLS install?
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Mar 18, 2013
I would like to know the J2EE architectural explanation with respect to HTML5 and Adobe Flex technologies. It is just like knowing over all J2EE architectural aspects and how HTML5 and Adobe Flex technologies are used to satisfy those aspects in order act as client side components.
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Apr 12, 2014
i downloaded a sample database code of an online payroll system. How can i assemble it to know how it works.
the files include php and mysql files. it is to build an online payroll system
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Jun 26, 2014
I tried many times to return a string from java project to an android project But it keeps sending incorrect values as in 2 as it should be 1 here is an example.
Java Project:
boolean somethingboolean = false;
if(something.equals("1")){
somethingboolean = true;
}
public static String getString(){
if(somethingboolean == true){
[Code]...
Android project:
System.out.println(JavaProject.getString())
and in the android project it prints "FALSE"
So what should i do?
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Mar 13, 2014
I have an XML doc that looks like this:
Java Code:
<?xml version="1.0" encoding="UTF-8"?>
<model>
<id>_1</id>
<nodes>
<id>_2</id>
<stencil>TASK</stencil>
</nodes>
<nodes>
<id>_3</id>
<stencil>TASK</stencil>
</nodes>
</model> mh_sh_highlight_all('java');
I have to create another xml doc with the properties of nodes from the first doc. For the new doc I have to create a parent node called "definitions". Instead of the "model" node in the first doc I have to create a "process" node in the new doc that has an attribute "id" which value is the same as the content of the "id" child node of model. For each "nodes" node in the first doc if their "stencil" child node content equals "TASK" I create a "task" node in the new xml doc.
Java Code: <?xml version="1.0" encoding="UTF-8"?>
<definitions>
<process id="_1">
<task id="_2">
</task>
<task id="_3">
</task>
</process>
</definitions> mh_sh_highlight_all('java');
[code]....
I just wanted to know if this is the correct way to define the respective classes.any way to create and fill the nodes for the new doc using this classes? I am used with DOM parser and I know how to create nodes and fill attribute values, but I have always done this job in a single class, not using different classes for the elements.
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Jan 16, 2014
static public String populateVehicleDetails(Vehicle vehicle){
String returnString = new String()
String existingString = "Chevy Uplander "
String nl = "
"
returnString.concat(existingString+nl).
concat("Color: "+ vehicle.color + nl)
return returnString
}
In the case that vehicle.color is null what will happens? A null pointer error?
null will be concatenated to the string in vehicle.color place? or will not concatenate anything in the place of vehicle.color I'm asking that because I do not know if I have to check for null in each property of vehicle that I must concatenate (there are a lot of properties in the Vehicle object and some may not been set (they will return null).
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Mar 15, 2014
So I am trying to add a logo to my existing program. However nothing shows up when I run it. I am getting no errors and everything else seems to be fine. This is just the logo part if you need the whole code it will be separate (just trying to make things easier.
class Logo extends JPanel {
public Logo() {
super();
setPreferredSize(new Dimension(200,200));
}
public void paint(Graphics g) {
g.setColor(Color.red);
g.fillRoundRect(60,60,110,90,5,5);
g.setColor(Color.black);
g.drawString("DEAD BUG", 70, 105);
[code]....
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Aug 8, 2014
I would like to make an incremental change to an existing Java program. And the program has been installed on the user's machine. Now I only want to do an incremental download (to minimize the download time) to update the program.
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Apr 7, 2015
how to add an a user defined int into my existing array. Ive heard of using ArrayList but not sure how to implement it.
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Jul 24, 2014
I do most of my file I/O with {Scanner} for input and {PrintWriter} for output. I've got lots of places in my code that looks like:
Scanner source = new Scanner( new File( sourceName));
PrintWriter dstntn = new PrintWriter( new BufferedWriter( new FileWriter( dstntnName)));
But when I call the constructor for {PrintWriter} up above, it overwrites whatever the original contents of the file designated by {dstntnName} were, doesn't it? Is there a way to call the constructor so that any future writes to it simply append to the original contents, instead of overwriting them?
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Oct 13, 2014
Will the code below just create a new blank window rather than call the one I have? I want to call the one I have from my main method ideally.
JMenuItem menuDelete = new JMenuItem("Delete");
menuDelete.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
DeleteEnvironmentWindow deleteEnv = new DeleteEnvironmentWindow();
deleteEnv.setVisible(true);
}
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Mar 14, 2014
I know there was a change in the later versions of Java where the C++ equivalent of a <template type> was added. Unfortunately the change has 'broken' my older code. If I have a JList and I want to add elements to it then now I should specify the type e.g., the list will store Strings. When I do this and then add data to the list (or actually the list model) the code is ''fixed". However if after adding those new elements to the list I later need to add more elements, which isn't unreasonable for a list...to have elements added dynamically at run time then I again get the same compiler error message that I haven't correctly specified the type:
// Error message during compilation
Note: Driver.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
// My code
// Problem here: I try to add new elements to the list. It's the very last line of the method that results in the error. I tried various things such as:
// model.addElement(<String> s);
// but so far nothing has worked. How do I add new elements to the list (model)?
public static void m2(JList <String> list)
{
String s;
int i;
String [] array = new String[10];
[Code] ....
// Code is OK: Create the array of strings to add to constructor of the JList
public static String[] m1(){ String s;
int i;
String [] array = new String[10];
for (i = 0; i < 5; i++)
array[i] = i + "*"; return(array);
[Code] ....
// The change I had to make when compiling under the newer version of Java to indicate that the list would store strings
// Things are okay here now but then when I try to add new elements to the model via method 'm2' that's where I get the compiler error
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Jun 2, 2013
I am trying to create a code which allows the users to create JButtons to a an existing frame.So what I want is that users can create buttons wihch opens a URL. The user need to be able to click on an Existing JButton called "Add Favorite", insert the name of the favorite and URL and the button is added with the functionality to open the URL in Internet Explorer.
I already have a beginning but have no clue how to add that functionaly to create JButton by pressing on button "Add Favorites" with the needed functionality The functionality needes to be added to Button4 ("add Favorite" ). As you can see, Button4 ("add Favorite") opens two inputShowDialog which allows the users to insert the name of the favorite and URL.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.JButton.*;
import java.awt.Dimension.*;
import java.lang.RuntimeException.*;
import javax.swing.JOptionPane;
public class Favorites extends JFrame implements ActionListener{
//private JPanel panel1 = new Jpanel ("Add Favorite");
[Code]...
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May 27, 2015
I am modifying existing code to display graph after pressing calculate button. The graph pop ups in new controller/window. The pop up disappears after closing the application entirely. However I have trouble figuring out if it is possible to close that old/previous pop up and new pop up appears when calculate button is pressed again. Or at least reuse the pop up to display a new graph.
public class AdamCalculationApp extends AbstractCalculation {
/**
* Does a calculation.
*/
public void calculate() { // Does a calculation
control.println("Adam Calculation button pressed.");
double k = control.getDouble("k value"); // String must match argument of setValue
control.println("k*k = "+(k*k));
control.println("random = "+Math.random());
[Code]...
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Feb 8, 2014
I'm creating ftp program which server will send not existing files on client to him.
There is method responsible for creating connection and sending list of files on client written by me.
Java Code:
[JAVA]//client method
public void enableClient() throws IOException, ClassNotFoundException {
System.out.print("Rozpoczęto działanie klienta");
strIP = jtfIP.getText();
intPort = Integer.parseInt(jtfNrPortu.getText());
clientPath= "C:/serweris/";
sck = new Socket(strIP, intPort);
[Code]....
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Aug 14, 2014
I have a Linux Server Debian 7 x86_64 Minimal With java version "1.7.0_65" installed..Its an online Game Server wich Players can join just like other Services.Every 10 - 15 minutes all the players get kicked from the server and get this messege: "internal exception: java.io.ioexception: an existing connection was forcibly closed by remote host"
The players can't join the server for 10 seconds and the server console doesn't show anything for 10 seconds.it doesnt show that the players even left! and when the players try to join they get htis messege: "same nick is already playing"
After 10 seconds everything will work and players can join again and server console say that everyone left and joined..But that happens again after 10 minutes and im losing lots of players because of this error.
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Jun 13, 2014
Does printwriter always truncates the existing file to 0 size before adding any new data ??
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Jan 21, 2013
How to get messages from WebSphere MQ using ejb MDBs and I have to deploy this in Weblogic server.
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Jun 15, 2014
IDE: Netbeans 8.0.
Server ejb:
"@Stateless
public class ejb implements ejbRemote{
public String say(){
return "hello";
[Code] ....
When I run the Web project on the Server host, it's OK. But when I run it on another host it returns error. I can access 192.168.0.2:7676 in browser(returns some context string), so it may not be caused by firewall.
I think the problem is the initalContext is not generated from 192.168.0.2:7676 but from local JVM, because when when running it in the Server I change the ip address to random number it also is OK.
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