LogFactory provides getFactory() with getInstance methods as well

Issue: SPR-14512

Author: jhoeller

spring-core/src/main/java/org/apache/commons/logging/LogFactory.java

@@ -98,6 +98,40 @@ public static Log getLog(String name) {
 		}
 	}
 
+	/**
+	 * This method only exists for compatibility with unusual Commons Logging API
+	 * usage like e.g. {@code LogFactory.getFactory().getInstance(Class/String)}.
+	 * @see #getInstance(Class)
+	 * @see #getInstance(String)
+	 * @deprecated in favor of {@link #getLog(Class)}/{@link #getLog(String)}
+	 */
+	@Deprecated
+	public static LogFactory getFactory() {
+		return new LogFactory() {};
+	}
+
+	/**
+	 * Convenience method to return a named logger.
+	 * <p>This variant just dispatches straight to {@link #getLog(Class)}.
+	 * @param clazz containing Class from which a log name will be derived
+	 * @deprecated in favor of {@link #getLog(Class)}
+	 */
+	@Deprecated
+	public Log getInstance(Class<?> clazz) {
+		return getLog(clazz);
+	}
+
+	/**
+	 * Convenience method to return a named logger.
+	 * <p>This variant just dispatches straight to {@link #getLog(String)}.
+	 * @param name logical name of the <code>Log</code> instance to be returned
+	 * @deprecated in favor of {@link #getLog(String)}
+	 */
+	@Deprecated
+	public Log getInstance(String name) {
+		return getLog(name);
+	}
+
 
 	private enum LogApi {LOG4J, SLF4J, JUL}