Install spring 3.0 plug-in in Eclipse 3.5

Actually this should be a pretty old topic, since I have done the same thing more than 5 times. However, without note down all the details, each time I have to google to solve some issue. Every time I just wondered why in the first place I keep this details down, now finally I decide to write all this down in case next time I have to google again and again.

So what you need to do is simply use the install new software tool in the Help menu. The address of spring plug-in is:http://springide.org/updatesite .And actually all you need is pretty clearly written on the web site of http://springide.org/project/wiki/SpringideInstall.

However, there might be several issues you will encounter. In my situation, you will always get a complaint about the missing component of "package org.eclipse.ajdt.internal.ui.lazystart 0.0.0". This package belongs to AJDT (which stands for AspectJ Development Tools) could be downloaded through the site of http://download.eclipse.org/tools/ajdt/35/update, and relevant info is here: http://www.eclipse.org/ajdt/downloads/.

After that try the spring plugin once again, in my case no complain any more and you should be able to get dirty with Spring finally.

PS: I have tried this method both in Ubuntu 9.10 and Mac OS Snow Leopard. Haven't try on Windows so please forgive me if it fails with Microsoft.

Export a jar file in Eclipse project

If you would like to export your eclipse project into a jar file, maybe the first thing comes out of your mind is to build with Ant. But here I'd like to recommend a very handy tool called FatJar, which is a very helpful plug-in for eclipse to package your project.

Really simple, just install the plug-in from http://kurucz-grafika.de/fatjar. Then export as a fat jar will generate the jar file you need.

More details can be found in its tutorial, just Google it.

Solve the annoyance with Eclipse Access Restriction

Sometimes, you may encounter a problem like this:
is not accessible due to restriction on required library /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/rt.jar.

After several times checking, there is no reason to properly explain and your program gets to stuck since no compilation is allowed when error existed.

One way to work around this issue is by resetting the configuration in the Eclipse project properties. Right click the project name, get into its properties and the Java compiler tab. There is an Errors/Warnings line listing there, select it, and update the Forbidden Reference (access rules) into Warning in the Deprecated and restricted API. Then rebuild the project, and problem solved.

Similar errors can be handled in the same way.