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The JavaTM Communications API can be used to write platform-independent communications applications for applications like voice mail, fax and smartcards. This version of the Java Communications API contains support for RS232 serial ports and IEEE 1284 parallel ports. With updated functionality, one can: Enumerate ports available on the system. Open and claim ownership of ports. Resolve port ownership contention between multiple applications. Perform asynchronous and synchronous I/O on ports. Receive Beans-style events describing communication port state changes.

This Gem contains all of the Ruby Exploitation(Rex) library for parsing Java serialized streams.

The Java Language Specification. This book attempts a complete specification of the syntax and semantics of the language.

Java Transaction API (JTA) specifies standard Java interfaces between a transaction manager and the parties involved in a distributed transaction system: the resource manager, the application server, and the transactional applications. The JTA specification was developed by Sun Microsystems in cooperation with leading industry partners in the transaction processing and database system arena. See JSR 907.

SableVM implements the Java virtual machine specification, second edition. SableVM is a bytecode interpreter. It's goals are to be reasonably small, efficient, and fast, as well as providing a well-designed platform for doing research into different algorithms for bytecode interpretation, garbage collection, memory management, etc.

The JLex utility is based upon the Lex lexical analyzer generator model. JLex takes a specification file similar to that accepted by Lex, then creates a Java source file for the corresponding lexical analyzer.

The com.oreilly.servlet package contains a set of useful utility classes for servlet developers. Included are classes to help servlets parse parameters, handle multipart requests (file uploads), generate multipart responses (server push), negotiate locales for internationalization, return files, manage socket connections, and act as RMI servers, among other things. There's even a class to help applets communicate with servlets. The package was developed by Jason Hunter for his book "Java Servlet Programming" published by O'Reilly. See: For more details.

The Bitmechanic JDBC Connection Pool provides developers a way to easily cache open connections to databases. This is useful in server environments since opening database connections can be slow. For more details see:

Perl extension for accessing a JVM remotely or locally

VisualVM is a visual tool integrating several commandline JDK tools and lightweight profiling capabilities. Designed for both production and development time use, it further enhances the capability of monitoring and performance analysis for the Java SE platform.