Logging with SLF4J produces wrong output when using multiple parameters in format --------------------------------------------------------------------------------- Key: JBAS-8797 URL: https://issues.jboss.org/browse/JBAS-8797 Project: JBoss Application Server Issue Type: Bug Security Level: Public (Everyone can see) Components: Logging Affects Versions: 6.0.0.Final Environment: Ubuntu Linux 64bit Reporter: Jens Reimann Assignee: David Lloyd Logging with SLF4J and passing parameters as Object[] produces wrong output in the JBoss log: e.g.: logger.debug ( "Logging - Level: {}, Action: {}, Result: {}, UserData: {}, Reference: {}/{}", new Object[] { level, action, result, data, referenceType, referenceId } ); produces Logging - Level: <parameter #1 as Object[]>, Action: {}, Result: {}, .... It seems to me that instead of handling the Object[] that is passed as array is used later on as simple Object which reduces the provided parameters to 1 instead. There seems to be no problem with the log calls that take one or two objects (which are separate methods in SLF4J). I would consider it major since it scrambles all logging messages using the Object[] methods. -- This message is automatically generated by JIRA. - For more information on JIRA, see: http://www.atlassian.com/software/jira