Open Source Java Logging Software for ChromeOS

Simplify your logging with tinylog. The lightweight logging framework can be used with Java, Kotlin, Scala, and any other JVM language. tinylog is open source and runs wherever Java is used: JVM, GraalVM, and Android.

Hyperic is application monitoring and performance management for virtual, physical, and cloud infrastructures. Auto-discover resources of 75+ technologies, including vSphere, and collect availability, performance, utilization, and throughput metrics.

Flogger is a structured logging API for Java that decouples how you log from where logs ultimately go, making it easy to change backends without rewriting application code. Instead of building messages eagerly, it uses lazy parameter evaluation so expensive string building only happens when a log statement is actually emitted. The API encourages structured key–value context and fine-grained rate limiting, which helps keep logs informative without flooding systems during high-traffic or error storms. Handlers (backends) can route the same log record to multiple destinations—console, files, cloud logging—while preserving structured fields for search and alerting. Its fluent style reduces boilerplate and guides developers toward consistent log levels, formatting, and metadata. Because it’s designed for large codebases, Flogger emphasizes performance, binary size discipline, and compatibility with existing logging infrastructures.

Logbook is an extensible Java library to enable complete request and response logging for different client- and server-side technologies. It satisfies a special need by a) allowing web application developers to log any HTTP traffic that an application receives or sends b) in a way that makes it easy to persist and analyze it later. This can be useful for traditional log analysis, meeting audit requirements or investigating individual historic traffic issues. Logbook is ready to use out of the box for most common setups. Even for uncommon applications and technologies, it should be simple to implement the necessary interfaces to connect a library/framework/etc. to it.

The ProM Import Framework allows to extract process enactment event logs from a set of information systems. These can be exported in the MXML format, which is the standard event log data format for Process Mining analysis techniques.

Lilith is a logging and access event viewer for Logback, log4j & java.util.logging. It has features comparable to Chainsaw for log4j. This means that it can receive logging events from remote applications using Logback as their logging backend

"Java log viewer" is a GUI to easily view the java application logs generated by the "java.util.logging" package. The log must be formatted by the XMLFormatter class. It provides facilities in order to filter, to sort and to find log records.

Core library for complex software project development. Features: semaphores, services, finite state machine, framework, utilities related to the middleware architecture and implementation.

An adaptable, platform-agnostic application incident reporting infrastructure ranging from logging libs and webservice-based reporting to a J2EE logging server to a pluggable connection to issuemanagers.

This is my collection of Java classes. Major chunks include: robust logging system, JDBC connection pools, lightweight application server, general utility classes.... enjoy.

Would you like to have some facilities for database applications? Or are you looking for a stable log system? I want to offer you many features you probably miss in Sun's Java API.

XLOG is a logging framework whose log files are XML documents.

LOG4PLSQL is a PLSQL framework for logging in all PLSQL code this project was born from the log4J spirit (and use it). You have the possibility to log apart from transaction and use all LOG4J feature.

A set of advanced Log4J appenders designed for hi-load applications. Among them: TimeAndSizeRollingFileAppender, ThreadSafeAsyncAppender, DbcpDataSourceAppender, JndiDataSourceAppender etc. Also includes appender wrappers for use in JBoss environment

LumberJack4Logs is a viewer for log and trace files with the ability to extend the recognized data formats by adding text parser plugins.

DJP - free portable cross-platform desktop graphical multi pinger, 100%-pure java. Local and remote (to syslog-server) logging support. At first DJP use ICMP for ping, if it is unavailable, it tries to check hosts with TCP/echo. Use standart OS ICMP packet-size - Linux=64 bytes, Windows=32 bytes. In addition to local-log also present syslog-server support: then any host down, DJP write message to local log and can send message to syslog-server. TCP port scaner and Telnet connection to host support. Also support backup/restore DB+CFG files to/from zip-archive. Simple and intuitive GUI - Graphical User Interface. Successfully tested in Windows and Linux for more than 100 hosts. Example of using CDI (Weld) and JPA (EclipseLink / OpenJPA) in Java SE application. Support both IPv4 and IPv6. Need only JRE 1.8 - https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html . See also Jennom project - http://jennom.sourceforge.net

PTLog focuses on pluggability of underlying logging frameworks, type-based categorization and some formatting utility on Logging. PTLog does not compete against any other logging frameworks, but can co-operate with them as abstraction layer on them.

Scommunication is easy to use rs232 rs485, USB to serial communication application. All sent and coming data you can see ASCII HEX DECIMAL or BINARY. With timer -- timer add after version 2-- you can send data every second , half second or how you want This application written in java(fx) so you can use windows linux or mac. Tested with arduino uno,arduino nano, arduino mega, frdm-kl46z and frdm-k64f In some problem feel free to send me mail: hrasity@hotmail.com

TrafficCounter for Draytek Routers (TCDR)

log4jdbc is a JDBC driver that can log SQL and/or JDBC calls (and optionally SQL timing information) for other jdbc drivers using the Simple Logging Facade For Java (SLF4J) logging system.

AJAXified logfile download and tailing application.

Instantly create ASCII reports, multi-column tables, graphs, ... These can be rendered on screen, files and most importantly log streams.

Have you ever wondered which database indexes you should create for your JDBC-based application ? This Swing-based SQL profiler tries to offer a tool to monitor which tables and columns are accessed the most in SQL queries to recommend index creation

LogView4J is a Java Swing Log4J socket listener GUI that makes application debugging simple. It has an intuitive user interface and is designed from the ground up for use of use, speed and stability, with features specifically tailored for Java developer

A command line tool for text file analyis, filtering, splitting and reporting. Runs under Java (1.5+), supports plugins written in Groovy. Has nix and win batch files in distributions.