java

copy xml files from src/ to class/ when compile using maven

may i know how to copy xml files from rc/ to class/ when compile using maven ...

Efficient file transfer from Java server to multiple C++ clients?

I need to transfer files fast over the Internet from a Java server to C++ clients, where often many clients would need the same files. I was looking at say transferTo() in Java which sounds like it would be a decently optimized function to send files. However, I'm not sure when I use transferTo() how to best receive that in C++ (i.e. i...

Help with Hibernate Collection Foreign Key Mapping

Hi, I'm running into significant difficulty getting my mapping file to work with a collection of elements via a foreign key in Hibernate. Java will try to load these files below and won't have any runtime exceptions, but the events table is never loaded as an object of an employee (it will remain null, but every other attribute loads fr...

Unicode/Japanese characters in a Java applet

I'm writing an applet that's supposed to show both English and Japanese (unicode) characters on a JLabel. The Japanese characters show up fine when I run the applet on my system, but all I get is mojibake when I run it from the web page. The page can display Japanese characters if they're hard-coded into the HTML, but not in the applet. ...

Java: How to prevent 'systemId' in EntityResolver#resolveEntity(String publicId, String systemId) from being absolutized to current working directory

Hi guys, I want to parse the following XML document to resolve all entities in it: <!DOCTYPE doc SYSTEM 'mydoc.dtd'> <doc>&title;</doc> My EntityResolver is supposed to fetch the external entity with the given system ID from the database and then do the resolution, see below for an illustration: private static class MyEntityResol...

Help needed for integrating Displaytag with spring web mvc

Hello All.. I just wants to know that is it possible to integrate Displaytag with spring web mvc ? If it is possible then can anybody please provide some tutorial or links for that ? Thanks in advance.. ...

Hibernate detached queries as a part of the criteria query

Hi Hibernate, java experts can you please help me write detached queries as a part of the criteria query for the following SQL statement. select A.* FROM AETABLE A where not exists ( select entryid FROM AETABLE B where B.classpk = A.classpk and B.userid = A.userid and B.modifiedDate > A.modifiedDate ) and userid = 10...

java multithreading

please let me know a java multithread application which i can refer ( source ) and debug to understand how multithreading actually works in java ? ...

JfreeChart XYPlot freezing after zoom in/out

In this demo application, XYPlot is drawn with dynamic data. With every new data the graphic slides to left dynamically. But the problem is if you zoom in or zoom out on XYPlot the graphic stops sliding and new data can not be seen on XYPlot. Is this a bug for JFreeChart or is it default behaviour for XYPlot ? ...

Why do all Java Objects have wait() and notify() and does this cause a performance hit?

Every Java Object has the methods wait() and notify() (and additional variants). I have never used these and I suspect many others haven't. Why are these so fundamental that every object has to have them and is there a performance hit in having them (presumably some state is stored in them)? EDIT to emphasize the question. If I have a ...

How to remove installed Java programs on the simulator?

There are lots of java apps on my simulator menu screen which I have been coding and testing? Now I want to remove some of them to clean my simulator a bit. How do I remove them? ...

java GC name 'MarkSweepCompact'

what is MarkSweepCompact ? ...

Using Dependency Injection in POJO's to inject EJB's

Is it possible to inject ejb's into pojo's using the @EJB annotation? If it is, do I have to set up anything special on a JBoss server to make it work? Please let us not discuss the rationale behind doing this - I am just trying to hack some old code to make it work :-) ...

daemon threads in java

i ran jconsole, i see some live threads count and daemon threads count .... i run no other java app/classes .... i could see the list of live threads but not daemon thread .... is there a way to know what is the list of deamon threads ? ...

How can I configure a JPA EntityListener via a Spring XML configuration file?

Hello, I have two webapps, that are built together and respectively provide a client and admin access to a database. I'd like to register two JPA EntityListeners to a given class, one in each app. To do that, I'm trying to find a way to register the listeners via the Spring XML configuration file that configure each app's JPA context.....

What is the benefit of ThreadGroup in java over creating separate threads?

Many methods like stop(), resume(), suspend() etc are deprecated. So is it useful to create threads using ThreadGroup? ...

Request for SERVER prgm using THREADPOOL ,such that it accepts several clients and responding them with their respective response files

Hi Everyone, can i have code of serverprogram which accepts several client connections using THREADPOOL concept,where each client send a file to server and server should respond to them with respective response file......i am asking like this because i am able to get several client request but i am not able to reply them back with the re...

Deleting of related objects in hibernate

Hi all, I have a hibernate model with two classes, let's say A and B. B has a many-to-one reference to A. I query a single A and a single B object. These are detached from the Session and they get processed somewhere/used else. The B.A property is a lazy proxy. Sometime later A and B both need to be deleted. I create a new Session...

Is there any mistake in this Java code?

class Creature { private int yearOfBirth=10; public void setYearOfBirth(int year) { yearOfBirth = year; } void setYearOfBirth(Creature other) { yearOfBirth = other.yearOfBirth; // is this correct it compiles fine } int getYearOfBirth() { return yearOfBirth; } public static void main(S...

What's the difference between import java.util.*; and import java.util.Date; ?

I just want to output current and I wrote import java.util.*; at beginning, and System.out.println(new Date()); in the main part. But what I got was something like this: Date@124bbbf When I change the import to import java.util.Date; the code works perfectly, why? ==================================== The problem was, OK, my so...