[jira] [Created] (LOG4J2-248) Log4jContextListener: Use Thread instead of Class for fallback classloader

["Tim Tucker (JIRA)" <ji...@apache.org>]

Tim Tucker created LOG4J2-248:
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             Summary: Log4jContextListener: Use Thread instead of Class for fallback classloader
                 Key: LOG4J2-248
                 URL: https://issues.apache.org/jira/browse/LOG4J2-248
             Project: Log4j 2
          Issue Type: Improvement
    Affects Versions: 2.0-beta5
            Reporter: Tim Tucker
            Priority: Minor


I was experimenting with creating my own context listener based on Log4jContextListener and noticed that the call in getClassLoader to get the class's classloader was triggering a PMD warning.

The rule's notes indicate that Thread.currentThread().getContextClassLoader() might return more reliable results than Object.class.getClassLoader().

The code in question is as follows:
try {
    // if container is Servlet 3.0, use its getClassLoader method
    return (ClassLoader)context.getClass().getMethod("getClassLoader").invoke(context);
} catch (Exception ignore) {
    // otherwise, use this class's class loader
    return Log4jContextListener.class.getClassLoader();
}

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