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JRebel – First Impressions

I have been wanting to try JRebel for a long time and finally installed the 30 day trial version on Eclipse. The Windows Installer made the installation very easy. The documentation in the Configuration Wizard was great help to complete IDE integration.

I am using JRebel in a Spring 3.x project and the only problem I see so far is this Exception being thrown once in a while:

JRebel: Reloading class ‘com.blog.inflinx……SearchCommand’.
JRebel: An error occured in a JRebel plugin while handling a class reload event:
java.lang.NoClassDefFoundError: org/springframework/beans/factory/CannotLoadBeanClassException
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:305)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:382)

Looks like the package changes made in Spring 3.x is causing this. I will be posting updates on this experimentation.

Update 1: I am using JRebel in a multi module Maven project and it is working great. However, I once noticed that it didn’t update my changes in a Spring bean.

Update 2: I just upgraded to 3.0 and did not run into any issues. I wish there was an upgrade guide with the download.

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