Configure KnowledgeAgent in Drools-Spring

[devilkazuya99]

I have my spring setting and code:

 <drools:kbase id="kbase" >
        <drools:resources>
           <!-- <drools:resource id="oldDroolsPackage" type="PKG" source="file:/var/geneoz/RulesEngine.object"></drools:resource> -->
           <drools:resource id="newTailingProcedure" type="BPMN2" source="file:/var/geneoz/HumanTaskFlow.bpmn" />
           <drools:resource id="tes" type="DRF" source="file:/Users/tcong/Documents/eclipse_workspace_4.1/drools_tools/rules/Ozgene/v2/TailingProcedure.rf" />
        </drools:resources>
    </drools:kbase>
 <drools:kagent kbase="kbase" id="knowledgeAgent" new-instance="true" >
 </drools:kagent>
 <drools:resource-change-scanner id="resourceChangeScanner" interval="10" />

 @Autowired
          private ResourceChangeScanner resourceChangeScanner;
...
resourceChangeScanner.start();
resourceChangeScanner.setSystemEventListener( ... )

works fine. But when I modify one of my file, the resource scanner nitofies it but then do nothing. Look at the log below. 

DEBUG 2012-05-31 13:28:50,019 (RulesEngineManager.java:119) - ResourceChangeScanner attempt to scan 2 resources
DEBUG 2012-05-31 13:29:00,019 (RulesEngineManager.java:119) - ResourceChangeScanner attempt to scan 2 resources
DEBUG 2012-05-31 13:29:10,019 (RulesEngineManager.java:119) - ResourceChangeScanner attempt to scan 2 resources
DEBUG 2012-05-31 13:29:10,020 (RulesEngineManager.java:119) - ResourceChangeScanner modified resource=[UrlResource path='file:/var/geneoz/HumanTaskFlow.bpmn'] : 1338441674000 : 1338442130000
DEBUG 2012-05-31 13:29:20,020 (RulesEngineManager.java:119) - ResourceChangeScanner attempt to scan 2 resources
DEBUG 2012-05-31 13:29:20,021 (RulesEngineManager.java:119) - ResourceChangeScanner modified resource=[UrlResource path='file:/var/geneoz/HumanTaskFlow.bpmn'] : 1338441674000 : 1338442130000
DEBUG 2012-05-31 13:29:30,022 (RulesEngineManager.java:119) - ResourceChangeScanner attempt to scan 2 resources
DEBUG 2012-05-31 13:29:30,022 (RulesEngineManager.java:119) - ResourceChangeScanner modified resource=[UrlResource path='file:/var/geneoz/HumanTaskFlow.bpmn'] : 1338441674000 : 1338442130000
DEBUG 2012-05-31 13:29:40,022 (RulesEngineManager.java:119) - ResourceChangeScanner attempt to scan 2 resources
DEBUG 2012-05-31 13:29:40,023 (RulesEngineManager.java:119) - ResourceChangeScanner modified resource=[UrlResource path='file:/var/geneoz/HumanTaskFlow.bpmn'] : 1338441674000 : 1338442130000
DEBUG 2012-05-31 13:29:50,023 (RulesEngineManager.java:119) - ResourceChangeScanner attempt to scan 2 resources
DEBUG 2012-05-31 13:29:50,023 (RulesEngineManager.java:119) - ResourceChangeScanner modified resource=[UrlResource path='file:/var/geneoz/HumanTaskFlow.bpmn'] : 1338441674000 : 1338442130000
DEBUG 2012-05-31 13:30:00,023 (RulesEngineManager.java:119) - ResourceChangeScanner attempt to scan 2 resources
DEBUG 2012-05-31 13:30:00,024 (RulesEngineManager.java:119) - ResourceChangeScanner modified resource=[UrlResource path='file:/var/geneoz/HumanTaskFlow.bpmn'] : 1338441674000 : 1338442130000

It keeps on saying resource modified but did not do anything else.

I'm sure I'm missing something here...

Any help please...