I don't remember seen in any tutorial how to persist Buffers with the
Java Persistence API.
Does somebody know how to do ?

I have a web app deployed as a .war file. There are some images in the
root directory of the .war, and they're accessible just fine through
the browser, e.g.
http://localhost:8080/myApp/test.jpg

alright,
about to start a project with java servlets. I would appreciate if someone
would highlight do's and don'ts regarding web based apps in java. My plan
is to create a web based database based application with java j2ee, further

Am I missing something obvious?  Is there no way to localize the text
that appears on the button (namely 'Browse...') when using the
<html:file> tag?
I see altKey and titleKey as referring to the resource bundle, but what

I am trying to broadcast a message.
When I am doing this (on FORTE IDE),
everything works fine, and I am not getting any exception.
When I am trying the follows, and running from the command line :

I want to write a String type to a local file
the code like:
------------------------------
String src="xxxxxxxxxxxxxxxxxx";

How do I debug threads using eclipse?
I have a bug in one of my threads, but I can't step to it for some
reason. Here is an example:
class A{

I have a question regarding Regexp. The string that I need to change
is:
href="http://www.mysite.com/test1.html" ... href="/test2.html" ...
and this is what I would like to get after the replaceAll:

if an app writes to a file, the location may be user.home, in Windowns
it is okay, but in unix, different user have different full-path.
I'm wondering, what's the idea to have unique full-path, which is
cross-platform? That way same app, event executed twice/more at the

I am reading bytes from a stream but some are cmoing back corrupt.
Someonly return ex. 456.
byte[] byteobj= new byte[1024] ;
n = _fromGeneva.read(byteobj,  0 , 1024);

I have an Java Swing application that has a JFrame. I also call into a
native dll using JNI to launch a native dialog from this dll.
This native dialog appears below the JFrame and is not visible unless
the user looks in the task bar and clicks on it.

Does anyone has experience/know how to create a new windows (xp)
service that runs a jar file? This issue rises as i need to hide the
most of the java implementation in this project before it  goes live.
So the idea is, to have control on the exceution of the jar from

Given a collection of classes, how can I find their nearest common
superclass?
It seems like it would be simple enough -- maybe something
which iterates over a pair-wise comparison such as this:

I'm trying to create a TreeCellRenderer that would display a files
system icon and system name instead of the default icons so I created a
class as follows:
class FileSystemRenderer extends DefaultTreeCellRenderer {

I working on a problem. We have an application in which a signature can
be captured. This works perfectly on a PDA (Windows CE, Creme 3.25) but
since the upgrade to Windows CE Second Edtion, Creme 3.27 it fails to
work.