Henrik created LOG4J2-2355:
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Summary: PropertiesUtil.reload() might throw NullPointerException
Key: LOG4J2-2355
URL: https://issues.apache.org/jira/browse/LOG4J2-2355
Project: Log4j 2
Issue Type: Bug
Components: API
Affects Versions: 2.11.0
Reporter: Henrik
SystemPropertiesPropertySource.forEach(..) uses Property.getProperty(..)
to resolve values. If that value is a non-String, the value will be
null. Since {{literal}} is a ConcurrentHashMap, a put(..) with null value
will yield a NullPointerException.
This is especially hard to debug in the case of e.g. StatusLogger,
which initializes PropertiesUtil as a static variable. The class is
unable to load, throws a NoClassDefFoundError, and hides the
NullPointerException.
Here's what I got when I had a Property value that was a File:
Caused by: java.lang.NoClassDefFoundError: Could not initialize class
org.apache.logging.log4j.util.PropertiesUtil
at org.apache.logging.log4j.status.StatusLogger.(StatusLogger.java:78)
at org.apache.logging.log4j.LogManager.(LogManager.java:60)
PR: https://github.com/apache/logging-log4j2/pull/183
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