[jira] [Created] (LOG4J2-1542) java.lang.ArrayIndexOutOfBoundsException

["Rogério Lecarião Leite (JIRA)" <ji...@apache.org>]

Rogério Lecarião Leite created LOG4J2-1542:
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             Summary: java.lang.ArrayIndexOutOfBoundsException
                 Key: LOG4J2-1542
                 URL: https://issues.apache.org/jira/browse/LOG4J2-1542
             Project: Log4j 2
          Issue Type: Bug
          Components: API
    Affects Versions: 2.6.2
         Environment: Array length logic causes throw java.lang.ArrayIndexOutOfBoundsException
            Reporter: Rogério Lecarião Leite
            Priority: Critical


This error is reproducible when method fomarTo of the class ParameterizedMessage is invoked.

This root cause is the method init of same class where is invoked, in the this.indices is initializaded with messagePattern.length() >> 1 run to equals zero because that messagePattern.length() is 1 (string with one character).

I used File Appender in my XML config and I wrote my code with logger.trace("a").
My PatternLayout used is pattern="%m" (simplest).




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