SLF4J API is a simple API that allows to plug in any desired logging library at deployment time.

Here is the source code for SLF4J API 2.0.4. You can download its pre-compiled version slf4j-api-2.0.4.jar at SLF4J Download Website.

⏎ org/slf4j/helpers/LegacyAbstractLogger.java

package org.slf4j.helpers;

import org.slf4j.Marker;

/**
 * Provides minimal default implementations for {@link #isTraceEnabled(Marker)}, {@link #isDebugEnabled(Marker)} and other similar methods.
 * 
 * @since 2.0
 */
abstract public class LegacyAbstractLogger extends AbstractLogger {

    private static final long serialVersionUID = -7041884104854048950L;

    @Override
    public boolean isTraceEnabled(Marker marker) {
        return isTraceEnabled();
    }

    @Override
    public boolean isDebugEnabled(Marker marker) {
        return isDebugEnabled();
    }

    @Override
    public boolean isInfoEnabled(Marker marker) {
        return isInfoEnabled();
    }

    @Override
    public boolean isWarnEnabled(Marker marker) {
        return isWarnEnabled();
    }

    @Override
    public boolean isErrorEnabled(Marker marker) {
        return isErrorEnabled();
    }

}

⏎ org/slf4j/helpers/LegacyAbstractLogger.java

Or download all of them as a single archive file:

File name: slf4j-api-2.0.4-sources.jar
File size: 70304 bytes
Release date: 2022-11-17
Download 

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