Configuration type doesn't have MarkerFilter element

[IMurzich]

Description

log4j.xml from https://github.com/apache/logging-log4j2/blob/2.x/src/site/antora/modules/ROOT/examples/manual/markers/log4j2.xml doesn't validate:

Multiple annotations found at this line:
- Element name 'MarkerFilter' is invalid.
One of the following is expected:

• CustomLevels
• Loggers

Error indicated by:
{https://logging.apache.org/xml/ns}
with code:
- cvc-complex-type.2.4.a: Invalid content was found starting with element
'{"https://logging.apache.org/xml/ns":MarkerFilter}'. One of '{"https://
logging.apache.org/xml/ns":CustomLevels, "https://logging.apache.org/xml/
ns":Loggers}' is expected.

Configuration

Version: Used xsd - https://logging.apache.org/xml/ns/log4j-config-2.xsd

Reproduction

validate https://github.com/apache/logging-log4j2/blob/2.x/src/site/antora/modules/ROOT/examples/manual/markers/log4j2.xml

[ppkarwasz]

@IMurzich,

Thank You for the report. I moved it to logging-log4j-tools, since the problem is caused by our log4j-docgen generator. The meta-definition of the <Component> element does not contain filters:

logging-log4j-tools/log4j-docgen/src/main/resources/org/apache/logging/log4j/docgen/generator/base-log4j-types.xml

Lines 118 to 136 in d795a97

	<elements>
	<element type="org.apache.logging.log4j.core.config.PropertiesPlugin">
	<description>Wrapper element for a list of properties</description>
	</element>
	<element type="org.apache.logging.log4j.core.config.AppendersPlugin" required="true">
	<description>Wrapper element for a list of appenders</description>
	</element>
	<element type="org.apache.logging.log4j.core.config.CustomLevels">
	<description>Wrapper element for a list of custom levels</description>
	</element>
	<element type="org.apache.logging.log4j.core.config.LoggersPlugin">
	<description>Wrapper element for a list of logger configurations</description>
	</element>
	</elements>