cedric munger created LOG4J2-2885:
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Summary: Date patterns with microseconds do not work
Key: LOG4J2-2885
URL: https://issues.apache.org/jira/browse/LOG4J2-2885
Project: Log4j 2
Issue Type: Bug
Components: Core
Affects Versions: 2.13.3
Reporter: cedric munger
Logback fails to create appenders with a date pattern containing microseconds,
such as: dd/MM/yy HH:mm:ss.nnnnnn resulting as the following error message
during log4j initialization :
{code:java}
2020-07-03 16:56:40,691 main WARN Could not instantiate FastDateFormat with
pattern dd/MM/yy HH:mm:ss.nnnnnn java.lang.IllegalArgumentException: Illegal
pattern component: nnnnnn
at
org.apache.logging.log4j.core.util.datetime.FastDatePrinter.parsePattern(FastDatePrinter.java:311)
at
org.apache.logging.log4j.core.util.datetime.FastDatePrinter.init(FastDatePrinter.java:166)
at
org.apache.logging.log4j.core.util.datetime.FastDatePrinter.<init>(FastDatePrinter.java:159)
at
org.apache.logging.log4j.core.util.datetime.FastDateFormat.<init>(FastDateFormat.java:401)
at
org.apache.logging.log4j.core.util.datetime.FastDateFormat.<init>(FastDateFormat.java:386)
at
org.apache.logging.log4j.core.util.datetime.FastDateFormat$1.createInstance(FastDateFormat.java:108)
at
org.apache.logging.log4j.core.util.datetime.FastDateFormat$1.createInstance(FastDateFormat.java:105)
at
org.apache.logging.log4j.core.util.datetime.FormatCache.getInstance(FormatCache.java:86)
at
org.apache.logging.log4j.core.util.datetime.FastDateFormat.getInstance(FastDateFormat.java:151)
{code}
Only built in date pattern %d\{DEFAULT_MICROS} work to have microseconds
enables in log statements.
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