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https://issues.apache.org/jira/browse/LOG4J2-726?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
moonumi closed LOG4J2-726.
--------------------------
2.0.1 - same hang
2.0.2 - none hang work fine
> logging hang when PatternLayout's pattern has miss pattern
> ----------------------------------------------------------
>
> Key: LOG4J2-726
> URL: https://issues.apache.org/jira/browse/LOG4J2-726
> Project: Log4j 2
> Issue Type: Bug
> Components: Configurators
> Affects Versions: 2.0
> Environment: windows 8.1 64bit
> java 1.7.0_55 64bit
> log4j2 2.0
> Reporter: moonumi
> Assignee: Remko Popma
> Fix For: 2.0.2
>
>
> {code}
> <?xml version="1.0" encoding="UTF-8"?>
> <Configuration status="WARN">
> <Appenders>
> <Console name="Console" target="SYSTEM_OUT">
> <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} -
> %msg%n"/>
> </Console>
> </Appenders>
> <Loggers>
> <Logger name="com.foo.Bar" level="trace" additivity="false">
> <AppenderRef ref="Console"/>
> </Logger>
> <Root level="error">
> <AppenderRef ref="Console"/>
> </Root>
> </Loggers>
> </Configuration>
> {code}
> The above configuration syntax is correct. However, if one makes a mistake
> and instead writes:
> {code}
> <PatternLayout pattern="%d\{HH:mm:ss.SSS [%t] %-5level %logger\{36\} -
> %msg%n"/>
> {code}
> Note the ommited character "\}" in the date pattern.
> Run sample application.
> This will hang log4j2 logging system.
> sample source code:
> {code}
> import org.apache.logging.log4j.LogManager;
> import org.apache.logging.log4j.Logger;
>
> public class HelloWorld {
> private static Logger logger = LogManager.getLogger("HelloWorld");
> public static void main(String[] args) {
> logger.info("Hello, World!");
> }
> }
> {code}
> appear pattern configuration error or logging print miss pattern.
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