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Volkan Yazici updated LOG4J2-3458: ---------------------------------- Fix Version/s: 2.18.0 (was: 2.17.3) > LocalizedMessage logs misleading errors on the console > ------------------------------------------------------ > > Key: LOG4J2-3458 > URL: https://issues.apache.org/jira/browse/LOG4J2-3458 > Project: Log4j 2 > Issue Type: Bug > Components: API > Affects Versions: 2.17.2 > Reporter: Gary D. Gregory > Priority: Major > Fix For: 2.18.0 > > > I have an app where we log data that is percent encoded through a localized > message factory. We get a ton of noise on the console due to logging of > internal exceptions, for example: > ERROR StatusLogger Unable to format msg: > C:/Program%20Files/Some%20Company/Some%20Product%20Name/ > java.util.UnknownFormatConversionException: Conversion = 'F' > at java.util.Formatter$FormatSpecifier.conversion(Formatter.java:2691) > at java.util.Formatter$FormatSpecifier.<init>(Formatter.java:2720) > at java.util.Formatter.parse(Formatter.java:2560) > at java.util.Formatter.format(Formatter.java:2501) > at java.util.Formatter.format(Formatter.java:2455) > at java.lang.String.format(String.java:2981) > at > org.apache.logging.log4j.message.StringFormattedMessage.formatMessage(StringFormattedMessage.java:116) > at > org.apache.logging.log4j.message.StringFormattedMessage.getFormattedMessage(StringFormattedMessage.java:88) > at > org.apache.logging.log4j.message.FormattedMessage.getFormattedMessage(FormattedMessage.java:178) > at > org.apache.logging.log4j.message.LocalizedMessage.getFormattedMessage(LocalizedMessage.java:196) > at > org.apache.logging.log4j.message.LocalizedSimpleMessageFactoryTest.testNoMatchPercentInMessage(LocalizedSimpleMessageFactoryTest.java:79) > I updated this test to demonstrate: > [https://github.com/apache/logging-log4j2/blob/release-2.x/log4j-api/src/test/java/org/apache/logging/log4j/message/LocalizedMessageFactoryTest.java] > In a nutshell: > {code:java} > @Test > public void testNoMatchPercentInMessage() { > final LocalizedMessageFactory localizedMessageFactory = new > LocalizedMessageFactory(ResourceBundle.getBundle("MF", Locale.US)); > final Message message = > localizedMessageFactory.newMessage("C:/Program%20Files/Some%20Company/Some%20Product%20Name/"); > > assertEquals("C:/Program%20Files/Some%20Company/Some%20Product%20Name/", > message.getFormattedMessage()); > } > {code} > Options: > - Don't log the exception (simple) > - Log at the TRACE level instead of ERROR. > - Provide a better simpler localized MessageFactory that does not perform % > substitution > - ? > I read the Javadoc that says that using a localized MessageFactory is not > preferred, but it would be a large change for our app. -- This message was sent by Atlassian Jira (v8.20.7#820007)