Source Code for Apache Log4j Tag Library

Apache Log4j Tag Library creates the capability of inserting log statements in JSPs without the use of Java scripting.

Bytecode (Java 8) for Apache Log4j Tag Library is provided in a separate JAR file like log4j-taglib-2.14.1.jar.

Source Code files for Apache Log4j IOStreams are provided in both binary packge like and source package like You can download them at Apache Log4j Website.

You can also browse Source Code files for Apache Log4j Tag Library 2.14.1 below.



 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache license, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the license for the specific language governing permissions and
 * limitations under the license.
package org.apache.logging.log4j.taglib;

import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.message.MessageFactory;
import org.apache.logging.log4j.spi.ExtendedLogger;
import org.apache.logging.log4j.spi.ExtendedLoggerWrapper;

 * The bridge between the tag library and the Log4j API ensures that the source information for log events is
 * the JSP Servlet and not one of the taglib classes.
 * @since 2.0
class Log4jTaglibLogger extends ExtendedLoggerWrapper {
    private static final long serialVersionUID = 1L;

    public Log4jTaglibLogger(final ExtendedLogger logger, final String name, final MessageFactory messageFactory) {
        super(logger, name, messageFactory);

    protected void entry(final String fqcn, final Object... params) {
        super.entry(fqcn, params);

    protected <R> R exit(final String fqcn, final R result) {
        return super.exit(fqcn, result);

    protected void catching(final String fqcn, final Level level, final Throwable t) {
        super.catching(fqcn, level, t);

    protected <T extends Throwable> T throwing(final String fqcn, final Level level, final T t) {
        return super.throwing(fqcn, level, t);



Or download all of them as a single archive file:

File name: log4j-taglib-2.14.1-sources.jar
File size: 33902 bytes
Release date: 2021-03-06


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