Get 'This project needs to migrate WTP metadata' error on Eclipse/Maven 2

Today I took a look of old source code base which I had not maintain for such a long time. It is a mock object of a web service. I wrote an XML-RPC client for a vendor specific API, and I need a mock servlet to test the code.
Today I decided to mavenize the project, as now I believe that's the best way to maintain my source code base. Because the servlet is a web application, I create the maven source try.

Oh ya, by the way I'm using these:
Eclipse 3.4 (Ganymede)
Apache Maven 2.0.9
Eclipse IAM == Maven Integration for Eclipse plugin == Q4E plugin (still prefer to call it Q4E)

After creating the source tree base I created the Eclipse configuration file using the Maven's Eclipse plugin.
I just need to invoke this maven task:

[sourcecode lang="shell"]
mvn eclipse:eclipse
[/sourcecode]

Then I opened the project in Eclipse. I found my project caught a chicken pox (a part of the project got the red rashes - errors). I tried to rebuild, and got this message:

 This project needs to migrate WTP metadata

I knew I missed something, but it's been 2 months since last time I configured Maven 2 web application, and I have totally forgotten the exact steps to do it.

Later I realised that I need to specify the WTP version, so here's the solution:

1) Clean up the project file, run the Maven 2 Eclipse plugin clean task

[sourcecode lang="shell"]
mvn eclipse:clean
[/sourcecode]

2) Create the Eclipse configuration, now specifying the WTP version

[sourcecode lang="shell"]
mvn eclipse:eclipse -Dwtpversion=2.0
[/sourcecode]

3) Open the Maven 2 project in Eclipse IDE, refresh the project so that changes made on the file system is reflected in the Eclipse project as well

4) Remove the library references that contains M2_REPO

Because I'm using Q4E plugin and seemed that the Maven 2 Eclipse plugin was configured for use with other plugin (Mevenide or m2clipse), they specified the M2_REPO variable and repository which you don't need when using Q4E.

Just right click on the project, select Properties - Build Path, remove the libraries that contains M2_REPO.

4) Right click on the Project, select - Maven 2 - Use Maven Dependency Management

If it's already checked, then what you need to do is to uncheck it. After that refresh the project, and then check it again.

Cannot install WebLogic Connector on Eclipse 3.4 Ganymede...

Today I tried to install Eclipse Connector for WebLogic 10.3.

The connector component is a software component that responsible for deploy/undeploy/get status/configure the application server from within Eclipse.

I used the old way: 

1) Right click on the Servers view, New - Server

2) Click "Download additional server adapters".

Eclipse will do traverse several sites to get the connectors for application servers, such as  to http://www.webtide.com/eclipse for Jetty connetor, etc. Then Eclipse would display list of servers (Geronimo, Jetty Generic Server Adaptor, Oracle WebLogic Server Tools, WASCE, etc.). 

3) I chose the "Oracle WebLogic Server Tools" (v1.1.0.200903091141).

4) Click the Next button

5) Choose "Accept" radio button, then click "Finish" button

Eclipse displayed: "Support for Oracle WebLogic Server Tools will now be downloaded and installed. You will be prompted to restart once the installation is complete."

6) Click "OK"

Then nothing happened. Looks like Eclipse tried to display something error dialog, but it disappeared very fast.

I have been using the previous version of WebLogic Server 10.3 Tech Preview before on Eclipse 3.3 (Europa), and it worked fine with the online server connectors/adaptors download. But for now my Eclipse 3.4 Ganymede it has problem (at least on my laptop). That time WebLogic Server was still with BEA Systems, prior to the acquisition by Oracle Corp.

I try to find it on the Net if other people also have the same problem.
Then I found out that I need this software component:
Oracle Enterprise Pack for Eclipse 1.0

You need to update from this update site for Eclipse 3.4 (Ganymede) as follows:

1) On the menu, choose: Help - Software Updates...

2) Select Available Software tab, click "Add Site" button

3) Enter this url: "http://download.oracle.com/otn_software/oepe/ganymede"

For previous version of Eclipse 3.3 (Europa) from this site:
http://download.oracle.com/otn_software/oepe/europa

4) When done adding site, check the box to the left of "Oracle Enterprise Pack for Eclipse Update Site"

5) Click "Install" button

Eclipse will display which components will be installed. 

6) Select all components, then click "Next"

7) Accept the term/license

8) Click "Finish" button

9) When finished, restart Eclipse, here are the details:

After the installation it will display a dialog box asking you to participate in User Experience something program.

After that I got a warning that if I run Eclipse under JDK 6 I need to enable option in -Dsun.java.classloader.enableArraySyntax=true something in your eclipse.ini file. The installer would do it for you and ask you whether you want to restart? LOL.

Nah, now I got the WebLogic connector on my Eclipse.

Digital Mars C/C++ Compiler Review

Some peoplein the Linux programming mailing list suggested people to use this Digital Mars C/C++ Compiler to learn C/C++ language. I still maintaining my C/C++ programming skill once a while, but it's been quite long since last time engaged in big project.
You can take a look here: http://www.digitalmars.com/download/freecompiler.html
The compiler seems to be free, but you are required to pay when requesting for the CD.

I tried to play around a bit with it, which seems a good for fast up-and-running C/C++ environment. It runs on Win32 and Win16 environment as well. Of course you might need a DOS Extender for Win16 environment in order to be able to use high memory (if you don't understand this, it's ok, just a heritage from the old x86 architecture which we might not be using anymore).

I downloaded the 8.50 version and try to make a working environment out of it.

Tuning your IntelliJ IDEA 6.0

I found some useful tips when using JetBrains IntelliJ IDEA 6.0:

Turn off the "Synchronize files on frame deactivation" from [File - Settings - General] when your application source tree has become very large. This will save your time synchronizing unnecessarily when switching between windows. I often switch between processes using Alt-Tab key, and this setting saved me a great deal of time.

In the same menu, turn off "Reopen last project on startup" when working in more than one project. When your project grows large, and you switch between projects pretty often, it's nice not to have your IDEA opening the project, loading its mega collection of jars, sitting doing nothing for 5-15 minutes, and later found out it is not the project you are intended to open.