Admin4j

Admin4j (http://admin4j.net/)  es un una librería Java Open Source de utilidades de administración para aplicaciones JEE.
Admin4J will do the following:
•    Track and summarize exceptions generated by applications so the most severe issues are more easily identified.
•    Detect thread contention problems at runtime. Problems are logged and administrators optionally notified.
•    Detect memory issues at runtime. Problems are logged and administrators optionally notified.
•    Track and display performance metrics
•    Identify the most frequently executed code («Hot Spots») in web applications
•    Provides a Log Level administration page to change log levels at runtime. Currently supports log4j and jdk logging.
•    Provides a Web-Based File Explorer administration page with optional security features to limit display and change capabilities.
•    Provides a J2EE Filter to automatically detect application errors. Problems are logged and administrators optionally notified.
•    Provides a web-based JMX browser for environments that don’t expose JMX ports for remote browsing.