Re: How to Correctly use com.mattbertolini.hermes.Hermes to manage Constants at Server side (GWT)?

Thank you very much Thomas, I did & there is no warning at all.

On Saturday, March 8, 2014 4:05:24 AM UTC+11, Thomas Broyer wrote:

On Friday, March 7, 2014 5:48:41 PM UTC+1, Tom wrote:

Ok, I want to manage Constants at Server level, so com.mattbertolini.hermes.Hermes is a solution.

Please see all my steps:

1- I downloaded hermes-1.2.0.jar & import into correct Library of eclipse (no problem)

2- Create MyConstantsWithLookup.java at client package

import com.google.gwt.i18n.client.ConstantsWithLookup;    public interface MyConstantsWithLookup extends ConstantsWithLookup {      String myMsg();  }  

3- create MyConstantsWithLookup.properties file in the same client package. The file has this line:

myMsg=Deleted  

4- In ServerData.java in Server package

MyConstantsWithLookup my = Hermes.get(MyConstantsWithLookup.class, "");  String  extra=my.myMsg();  

When tested in eclipse it works fine but I got Warnign message in eclipse:

[WARN] Server class 'com.ibm.icu.util.ULocale' could not be found in the web app, but was found on the system classpath     [WARN] Adding classpath entry 'file:/C:/Users/eclipse-jee-juno-SR1-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.5.0.v201212122042-rel-r42/gwt-2.5.0/gwt-dev.jar' to the web app classpath for this session     For additional info see: file:/C:/Users/eclipse-jee-juno-SR1-win32-x86_64/eclipse/plugins/com.google.gwt.eclipse.sdkbundle_2.5.0.v201212122042-rel-r42/gwt-2.5.0/doc/helpInfo/webAppClassPath.html    

I am not sure what this warning'd about? is it serious?

The code was running ok but why eclipse generated this warning?

Hermes' README tells you you need ICU 4.6. It happens gwt-dev.jar contains ICU (because that's what's used by GWT to generate the client-side code for I18N, and thus what Hermes uses to replicate the functionality on the server side), and DevMode tells you that you're missing ICU in your WEB-INF/lib (which means your app won't run when deployed to a web server) but it can temporarily help you by adding gwt-dev.jar to the classpath (as if it were within the WEB-INF/lib, which is a very very bad idea and can cause all sorts of breakages).

The idea behind this warning is to warn you in case you added a JAR to your classpath (e.g. build path in Eclipse) but didn't put it in the WEB-INF/lib. It happens that in your case you didn't put anything anywhere, but the classes you're trying to use (via Hermes) happen to be in GWT already.

So, yes, it's a serious warning. Download ICU 4.6 and put it in your WEB-INF/lib (oh, and update to GWT 2.6, GWT 2.5 is more than 1 year old already!)

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