Austin Huck created LOG4J2-1833:
-----------------------------------
Summary: NullPointerException using fileName property of
RollingFile Appender with DirectWriteRolloverStrategy
Key: LOG4J2-1833
URL: https://issues.apache.org/jira/browse/LOG4J2-1833
Project: Log4j 2
Issue Type: Bug
Affects Versions: 2.8.1
Environment: Windows 7 64-bit JVM
Reporter: Austin Huck
Priority: Minor
When using a {{RollingFileAppender}} with a {{DirectWriteRolloverStrategy}} if
the _fileName_ property of the appender is set rollover fails with a
{{NullPointerException}}. If the _fileName_ attribute is not preset logging
works as intended.
Configuration that produces this error:
{code:title=log4j2.xml|borderStyle=solid}
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="MyApp" packages="">
<Properties>
<Property name="baseDir">C:/logs</Property>
</Properties>
<Appenders>
<RollingFile name="RollingFile" fileName="${baseDir}/app.log"
filePattern="${baseDir}/app-%d{yyyy-MM-dd'T'HH_mm_ss}.log">
<PatternLayout pattern="%d %p %c{1.} [%t] %m%n" />
<TimeBasedTriggeringPolicy interval="10"/>
<DirectWriteRolloverStrategy>
<Delete basePath="${baseDir}">
<IfFileName glob="app-*.log" />
<IfAccumulatedFileCount exceeds="10" />
</Delete>
</DirectWriteRolloverStrategy>
</RollingFile>
</Appenders>
<Loggers>
<Root level="trace">
<AppenderRef ref="RollingFile"/>
</Root>
</Loggers>
</Configuration>
{code}
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