fix: Always enable XML

Signed-off-by: Piotr P. Karwasz <[email protected]>

Author: ppkarwasz

core/spring-boot/src/main/java/org/springframework/boot/logging/log4j2/Log4J2LoggingSystem.java

@@ -125,19 +125,15 @@ protected String[] getStandardConfigLocations() {
 		if (isClassAvailable(Log4J2RuntimeHints.JSON_TREE_PARSER_V2)) {
 			Collections.addAll(locations, "log4j2-test.json", "log4j2-test.jsn");
 		}
-		if (isClassAvailable(Log4J2RuntimeHints.XML_TREE_PARSER)) {
-			locations.add("log4j2-test.xml");
-		}
+		locations.add("log4j2-test.xml");
 		locations.add("log4j2.properties");
 		if (isClassAvailable(Log4J2RuntimeHints.YAML_TREE_PARSER_V2)) {
 			Collections.addAll(locations, "log4j2.yaml", "log4j2.yml");
 		}
 		if (isClassAvailable(Log4J2RuntimeHints.JSON_TREE_PARSER_V2)) {
 			Collections.addAll(locations, "log4j2.json", "log4j2.jsn");
 		}
-		if (isClassAvailable(Log4J2RuntimeHints.XML_TREE_PARSER)) {
-			locations.add("log4j2.xml");
-		}
+		locations.add("log4j2.xml");
 		String propertyDefinedLocation = new PropertiesUtil(new Properties())
 			.getStringProperty(ConfigurationFactory.CONFIGURATION_FILE_PROPERTY);
 		if (propertyDefinedLocation != null) {

core/spring-boot/src/main/java/org/springframework/boot/logging/log4j2/Log4J2RuntimeHints.java

@@ -32,7 +32,6 @@ class Log4J2RuntimeHints implements RuntimeHintsRegistrar {
 
 	// Tree parsers used by Log4j 2 for configuration files.
 	static final String JSON_TREE_PARSER_V2 = "com.fasterxml.jackson.databind.ObjectMapper";
-	static final String XML_TREE_PARSER = "javax.xml.parsers.DocumentBuilderFactory";
 	static final String YAML_TREE_PARSER_V2 = "com.fasterxml.jackson.dataformat.yaml.YAMLMapper";
 
 	// JUL implementations that use Log4j 2 API.
@@ -51,7 +50,6 @@ public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
 		hints.resources().registerPattern("log4j2.springboot");
 		// Declares the types that Log4j2LoggingSystem checks for existence reflectively.
 		registerTypeForReachability(hints, classLoader, JSON_TREE_PARSER_V2);
-		registerTypeForReachability(hints, classLoader, XML_TREE_PARSER);
 		registerTypeForReachability(hints, classLoader, YAML_TREE_PARSER_V2);
 		registerTypeForReachability(hints, classLoader, LOG4J_BRIDGE_HANDLER);
 		registerTypeForReachability(hints, classLoader, LOG4J_LOG_MANAGER);