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Asked: 2026-05-23T14:21:42+00:00

Related: Load external properties files into EJB 3 app running on WebLogic 11 Using

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Related: Load external properties files into EJB 3 app running on WebLogic 11

Using Oracle Enterprise Pack for Eclipse, I created an Enterprise Project and named it:

PropertiesDemoEAR

Also created a PropertiesDemoEARWeb module in which I put this code

(inside PropertiesDemoEARWeb / Java Resources / src / com.project.util):

package com.project.util;

public class PropertiesFileHandler extends ApplicationLifecycleListener {

     private static final String FILE = "C:/etc/error.properties";

     public void preStart(ApplicationLifecycleEvent evt) {
        System.out.println("\n\n\t\tInside preStart() method\n\n");
        InputStream is = 
        evt.getApplicationContext().getAppClassLoader().getResourceAsStream(FILE);
        try {
            Properties convertedProps = 
                       convertStreamToProperties(is);
            String userMissingError =
                   convertedProps.getProperty("USER_MISSING_ERROR");
            System.out.println("\n\n\t\tuserMissingError = " 
            + userMissingError + "\n\n");
        } catch (Throwable e) {
             e.printStackTrace();
        }
     }

     public Properties convertStreamToProperties(InputStream is) throws IOException {
        System.out.println("\n\n\t\tInside convertStreamToProperties() method\n\n");
        Properties props = new Properties();
        if (is == null) {
          throw new FileNotFoundException("property file '" + FILE + "' not found");
        } else {
          props.load(is);
          return props;
        }
     }

 }

Inside PropertiesDemoEAR/EarContent/META-INF/weblogic-application.xml

I added the following listener declaratively:

<?xml version="1.0" encoding="UTF-8"?>
<wls:weblogic-application 
         xmlns:wls="http://xmlns.oracle.com/weblogic/weblogic-application" >
    <!--weblogic-version:10.3.5-->
    <wls:application-param>
        <wls:param-name>webapp.encoding.default</wls:param-name>
        <wls:param-value>UTF-8</wls:param-value>
    </wls:application-param>

    <wls:listener>              
         <wls:listener-class>
         com.project.util.PropertiesFileHandler
         </wls:listener-class>
    </wls:listener>
</wls:weblogic-application>

Right clicked on the PropertiesDemoEAR / Export / EAR file / Destination:

C:\Oracle\Middleware\user_projects\domains\MyDomain\autodeploy

When I run WebLogic 11g through Eclipse, I get this error message in the console:

 [ERROR] AdapterManager - ServletContainerAdapter manager not initialized correctly.
 <oracle.tip.adapter.apps.AppsConnectionFactory> 
 ConnectionManager cm: weblogic.connector.outbound.ConnectionManagerImpl@12433e7-eis/Apps/Apps        
 ManagedConnectionFactory mcf:   
 oracle.tip.adapter.apps.AppsManagedConnectionFactory@4303022b
 <Jun 30, 2011 5:50:24 PM PDT> <Error> <Deployer> <BEA-149265> 
 <Failure occurred in the execution of deployment request 
  with ID '1309481424487' for task '0'. Error is:   
  'weblogic.management.DeploymentException: '
   weblogic.management.DeploymentException: at
   weblogic.application.internal.flow.
   BaseLifecycleFlow$CreateListenerAction.run(BaseLifecycleFlow.java:176) at
   weblogic.security.acl.internal.
   AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) at 
   weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120) at
   weblogic.application.internal.flow.
   BaseLifecycleFlow$BaseAction.invoke(BaseLifecycleFlow.java:104) at   
   weblogic.application.internal.
   flow.HeadLifecycleFlow.createListener(HeadLifecycleFlow.java:117)
   Truncated. see log file for complete stacktrace

   Caused By: java.lang.ClassNotFoundException: 

   com.project.util.PropertiesFileHandler 

   at weblogic.utils.classloaders.
   GenericClassLoader.findLocalClass(GenericClassLoader.java:297)

Question(s):

(1) What am I possibly doing wrong? Why can’t it find my PropertiesFileHandler class?

(2) Is the location (c:/etc/error.properties) of my properties file suitable or should it be inside MyDomain directory?

(3) Is there a default directory or just simple configuration area that WebLogic loads properties files which are accessible to any application that runs in WebLogic?

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1 Answer

  1. Editorial Team

    Got it working… The issue was that I had it set up as Web Project rather than a Java EE Utility Project in Oracle Enterprise Edition for Eclipse.

    As a web project, it was putting .class files inside WEB-INF/classes instead of APP-INF.

    Also, needed to put error.properties inside my actual domain.

    C:\Oracle\Middleware\user_projects\domains\MyDomain

    In regards to my own question:

    Is there a default directory or just simple configuration area that WebLogic loads properties files which are accessible to any application that runs in WebLogic?

    If -Dweblogic.ext.dirs is not set, it defaults to $DOMAIN/lib;$WL_HOME/common/lib/ext;$WL_HOME/server/lib/ext

    So if you store error.properties in $DOMAIN/lib it will be on the CLASSPATH and you should be able to load it using getResourceAsStream(“error.properties”)

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