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https://issues.apache.org/jira/browse/CONFIGURATION-379?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12694363#action_12694363
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ranbir singh commented on CONFIGURATION-379:
--------------------------------------------

Thanks a lot for your prompt action. 
As required, please find below the code for configure method:
I have removed the exta code to avoid any confusion.

We call configure() method, which in turns call  configure(String path) .

public class CIMConfiguration 
{

....
private PropertiesConfiguration config = null;
....

        public CIMConfiguration configure() {
                String configFile = System.getProperty(CIM_CONFIG_FILE);
                if (!StringUtils.isBlank(configFile)) configure(configFile);
                else configure("cim.properties");
                return this;
        }

        public CIMConfiguration configure(String path) {
                URL url = ConfigurationUtils.locate(path);
                config = new PropertiesConfiguration();
                config.setURL(url);
                try {
                        log.info("Loading configuration ["+url+"]...");
                        config.load();
                } catch (ConfigurationException e) {
                        e.printStackTrace();
                        
                        log.warn(path + " open error",e);
                        
                        throw new CIMException(e);
                }
                return this;
        }

FYI: 
The line "log.info("Loading configuration ["+url+"]...");" prints 
" Loading configuration 
[file:/D:/applications/CIM/CIM-Config/cim.properties]..."
correctly and the file exists at that location.

> org.apache.commons.configuration.ConfigurationException: Cannot locate 
> configuration source null
> ------------------------------------------------------------------------------------------------
>
>                 Key: CONFIGURATION-379
>                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-379
>             Project: Commons Configuration
>          Issue Type: Bug
>    Affects Versions: 1.4
>         Environment: Windows XP, Tomcat 5.5 server, Quarts 1.6.0
>            Reporter: ranbir singh
>            Priority: Critical
>
> In one of my projects, we are using commons-configuration to read properties 
> file.  There are multiple threads that are trying to read property in this 
> property file and many times fails giving following exception:
> org.apache.commons.configuration.ConfigurationException: Cannot locate 
> configuration source null
>       at 
> org.apache.commons.configuration.AbstractFileConfiguration.load(AbstractFileConfiguration.java:213)
>       at 
> org.apache.commons.configuration.AbstractFileConfiguration.load(AbstractFileConfiguration.java:193)
>       at 
> com.mycomp.myapp.CIMConfiguration.configure(CIMConfiguration.java:104)
>       at com.mycomp.myapp.CIMConfiguration.configure(CIMConfiguration.java:89)
>       at com.mycomp.myapp.InterfaceJob.execute(InterfaceJob.java:64)
>       at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
>       at 
> org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
> To my understanding, this error is reported from
> Class: AbstractFileConfiguration.java
> Method: load(String fileName) throws ConfigurationException
> {
>       URL url = ConfigurationUtils.locate(basePath, fileName);
>       if (url == null)
>       {
>              throw new ConfigurationException("Cannot locate configuration 
> source " + fileName); } 
>             load(url);
>       }
> I have checked& printed that the filename passed to this method is correct.
> Please advice

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