[jira] [Created] (LOG4J2-811) Log4j2's SimpleLogger Implementation Issue for var args method's

["Yogesh Rao (JIRA)" <ji...@apache.org>]

Yogesh Rao created LOG4J2-811:
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             Summary: Log4j2's SimpleLogger Implementation Issue for var args method's
                 Key: LOG4J2-811
                 URL: https://issues.apache.org/jira/browse/LOG4J2-811
             Project: Log4j 2
          Issue Type: Bug
          Components: API
    Affects Versions: 2.0.1
            Reporter: Yogesh Rao


There seems to be an issue with SimpleLogger implementation provided by log4j2. The issue seems to be in the new improved API supporting placeholders and var args when called with an Object Array of size 0.

for e.g logger.error("Hello World {} in {} " , new Object[0]);

A statement above results in an error as shown below

ERROR StatusLogger Unable to locate a logging implementation, using SimpleLogger
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: -1
       at org.apache.logging.log4j.simple.SimpleLogger.logMessage(SimpleLogger.java:157)
       at org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1347)
       at org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1312)
       at org.apache.logging.log4j.spi.AbstractLogger.error(AbstractLogger.java:539)
       at TestError.main(TestError.java:21)


Solution to place a check in SimpleLogger for checking the size of the array . 



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