[jira] [Created] (CONFIGURATION-692) Preserve ConversionException cause

["Lars W (JIRA)" <ji...@apache.org>]

Lars W created CONFIGURATION-692:
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             Summary: Preserve ConversionException cause
                 Key: CONFIGURATION-692
                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-692
             Project: Commons Configuration
          Issue Type: Improvement
          Components: Type conversion
    Affects Versions: 2.2
            Reporter: Lars W


When improving the error message of the ConversionException thrown by the ConversionHandler in AbstractConfiguration.java:1768 the cause is lost.

If for example a string is converted into a URL the MalformedURLException, that contains the actual reason for the failed conversion, is gone.

A possible fix for that could be to attach the cause to the new ConversionException:

AbstractConfiguration.java:1768:

throw new ConversionException(
        String.format(
                "Key '%s' cannot be converted to class %s. Value is: '%s'.",
                key, cls.getName(), String.valueOf(value)), cex.getCause());

 



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