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Log4j 2 Tag Library
Tag warn

Equivalent of org.apache.logging.log4j.Logger#warn(). This tag has dynamic attributes enabled. You may specify any number of arbitrary attributes whose values will be substituted in the String message. The "message" must be a String for this to work correctly. See the Log4j 2 manual for more information about message parameters and substitution. Only attribute values are used; attribute names are ignored.

Example: 
<log:warn message="Log this message." />
<log:warn logger="com.foo.bar" message="${objectToLog}" exception="${exception}"
          marker="${marker}" />
<log:warn logger="com.foo.bar" exception="${exception}" marker="${marker}">
    Log this message
</log:warn>

Tag Information
Tag Classorg.apache.logging.log4j.taglib.WarnTag
TagExtraInfo ClassNone
Body ContentJSP
Display NameNone

Attributes
NameRequiredRequest-timeTypeDescription
loggerfalsetruejava.lang.ObjectThe name or instance of the Logger to use to override the default Logger for this JSP.
messagefalsetruejava.lang.ObjectThe message that should be logged. May be a String, Object, or org.apache.logging.log4j.message.Message. Either this attribute or body content are required.
markerfalsetrueorg.apache.logging.log4j.MarkerOptional marker data to include in this logging event.
exceptionfalsetruejava.lang.ThrowableOptional exception that should be logged.

Variables
No Variables Defined.

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