[slf4j-dev] [Bug 64] New: Logger.trace() throw exception NoSuchFieldError with older log4j version

[bugzilla-daemon at pixie.qos.ch]

http://bugzilla.slf4j.org/show_bug.cgi?id=64

           Summary: Logger.trace() throw exception NoSuchFieldError with
                    older log4j version
           Product: SLF4J
           Version: 1.4.x
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: minor
          Priority: P4
         Component: Core API
        AssignedTo: dev at slf4j.org
        ReportedBy: mbernhard at atlas.cz


Log4J - 1.2.9
slf4j-log4japi 1.4.2
slf4j - 1.4.2

i use method trace() on Logger object and it failed:
stack trace:
java.lang.NoSuchFieldError: TRACE
        org.slf4j.impl.Log4jLoggerAdapter.trace(Log4jLoggerAdapter.java:90)

I know it's because log4j support trace level since 1.2.12, but what about to
throw better kind of exception when back logging system is log4j. information
like "you need log4j with trace support (1.2.12+)..."


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