in log4j-jakarta-web/src/main/java/org/apache/logging/log4j/web/WebLoggerContextUtils.java [61:68]
public static LoggerContext getRequiredWebLoggerContext(final ServletContext servletContext) {
final LoggerContext loggerContext = getWebLoggerContext(servletContext);
if (loggerContext == null) {
throw new IllegalStateException(
"No LoggerContext found in ServletContext attribute " + Log4jWebSupport.CONTEXT_ATTRIBUTE);
}
return loggerContext;
}