[jira] [Created] (LOG4J2-2564) Error using %K in pattern : MapPatternConverter cannot contain multiple static newInstance method

["Anthony Communier (JIRA)" <ji...@apache.org>]

Anthony Communier created LOG4J2-2564:
-----------------------------------------

             Summary: Error using %K in pattern : MapPatternConverter cannot contain multiple static newInstance method
                 Key: LOG4J2-2564
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2564
             Project: Log4j 2
          Issue Type: Bug
    Affects Versions: 2.11.2
            Reporter: Anthony Communier


When using a %K in a pattern, the MapPatterConverter is used and there is an error message :

ERROR Class class org.apache.logging.log4j.core.pattern.MapPatternConverter cannot contain multiple static newInstance methods

 

The control is done by org.apache.logging.log4j.core.pattern.PatternParser.createConverter here :

{{ _// Work around the regression bug in Class.getDeclaredMethods() in Oracle Java in version > 1.6.0_17:_}}
{{        _// http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6815786_}}
{{        _final Method[] methods = converterClass.getDeclaredMethods();_}}
{{        _Method newInstanceMethod = null;_}}
{{        _for (final Method method : methods) {_}}
{{            _if (Modifier.isStatic(method.getModifiers()) && method.getDeclaringClass().equals(converterClass)_}}
{{                    _&& method.getName().equals("newInstance")) {_}}
{{                _if (newInstanceMethod == null) {_}}
{{                    _newInstanceMethod = method;_}}
{{                _} else if (method.getReturnType().equals(newInstanceMethod.getReturnType())) {_}}
{{                    _LOGGER.error("Class " + converterClass + " cannot contain multiple static newInstance methods");_}}
{{                    _return null;_}}
{{                _}_}}
{{            _}_}}
{{        _}_}}

 

The class org.apache.logging.log4j.core.pattern.MapPatternConverter contains 2 *newInstances* message (teh second introduced in 2.11.2)

 

 _/**_
     _* Obtains an instance of \{@link MapPatternConverter}._
     _*_
     _* @param options options, may be null or first element contains name of property to format._
     _* @return instance of \{@link MapPatternConverter}._
     _*/_
    _public static MapPatternConverter newInstance(final String[] options) {_
        _return new MapPatternConverter(options, JAVA_UNQUOTED);_
    _}_

{color:#d04437}    _/**_{color}
{color:#d04437}     _* Obtain an instance of \{@link MapPatternConverter}._{color}
{color:#d04437}     _*_{color}
{color:#d04437}     _* @param options options, may be null or first element contains name of property to format._{color}
{color:#d04437}     _* @param format the format to use if no options are given (i.e., options is null). Ignored if options is non-null._{color}
{color:#d04437}     _* @return instance of \{@link MapPatternConverter}._{color}
{color:#d04437}     _* @since 2.11.2_{color}
{color:#d04437}     _*/_{color}
{color:#d04437}    _public static MapPatternConverter newInstance(final String[] options, final MapFormat format) {_{color}
{color:#d04437}        _return new MapPatternConverter(options, Objects.toString(format, JAVA_UNQUOTED));_{color}
{color:#d04437}    _}_{color}

 

 



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