Free protocol implementation using java language software for linux

Fast MD5 Implementation in Java is a heavily optimized implementation of the MD5 hashing algorithm written in Java.
Fast MD5 Implementation in Java includes an optional native method for even greater speed improvements.
How Fast Is It?
Short answer:Much faster than any other Java implementation that I have tested and (surprisingly) even faster than the native, non-Java MD5 implementation on some systems.
Long answer:First of all, it is important to note that the term "fast" is used here in relative terms. The implementation of the MD5 message digest algorithm available on this page is written in Java and is fast compared with other implementations written in Java, both because it is heavily optimized by itself and because there is an optional native method that makes it even faster when the platform supports it. How it compares to a sensible implementation written in a language, such as C, that is compiled directly to machine code, is heavily dependent upon how good of a job the JIT compiler in your JVM does in compiling the code or whether you are able to use the optional native method.
Enhancements:
- Martin West contributed a bug fix and some code refactoring to make all targets work out of the box in the Ant build file. Previously, the "dist" target did not work if the "docs" directory was not present.

File::Comments::Plugin::Java is a Perl plugin to detect comments in Java source code.

SYNOPSIS

use File::Comments::Plugin::Java;

File::Comments::Plugin::Java is a plugin for the File::Comments framework.
Both /* ... */ and // style comments are recognized.

This is not a full-blown C parser/preprocessor yet, so it gets easily confused (e.g. if c strings contain comment sequences).

ZRTP Protocol Library is an implementation of Phil Zimmermanns ZRTP protocol, created based on and interoperable with Zfone beta 2.

Using this package, together with GNU ccrtp (1.5.0 or later) provides a zrtp implimentation that can be directly embedded into client and server applications, rather than the overhead penalty of using an external proxy such as zphone. The first application to demonstrate this capability is the 0.8.2 release of the Twinkle softphone client.

Please note, this library is licensed under the GNU GPL, version 2 or later, and has been copyright assigned to the Free Software Foundation.

Java Unified Expression Language is an implementation of the unified expression language (EL) as specified by the JSP 2.1 standard (JSR-245).
The javax.el.ExpressionFactory implementation is de.odysseus.el.ExpressionFactoryImpl:
// create an expression factory
javax.el.ExpressionFactory factory = new de.odysseus.el.ExpressionFactoryImpl();
Package de.odysseus.el.util provides ready-to-use subclasses of javax.el.ELContext and javax.el.ELResolver:
// create a simple EL context
de.odysseus.el.util.SimpleContext context =
new de.odysseus.el.util.SimpleContext(new de.odysseus.el.util.SimpleResolver());
// define function math:max(int,int)
context.setFunction("math", "max", Math.class.getMethod("max", new Class[]{int.class, int.class}));
// define variable "foo"
context.setVariable("foo", factory.createValueExpression(0, null));
// create expression
javax.el.ValueExpression e = factory.createValueExpression(context, "${math:max(foo,bar)}", null);
// set value for top-level property "bar"
context.setValue(null, "bar", 1);
// evaluate expression...
System.out.println(e.getValue(context)); // --> 1
The JUEL jar may be run from the command line to dump the parse tree of an EL expression:
$ java -jar juel-2.1.x.jar "#{unified(expression[language])}"
+- #{...}
|
+- unified(...)
|
+- [...]
|
+- expression
|
+- language
Enhancements:
- Minor changes only since the last release candidate.
- A detailed list of changes is contained in the archives.

PhotoDirectory project is a cross platform (Java) application to organize digital images. Great effort has been given to keeping these pictures in an order accessible without the need for any organization software - no databases are required.
PhotoDirectory was written using Java version 1.5 (commonly called 5.0 for some reason or another). You cannot run it on anything less than this. Depending on your system, you may need to explicitly state which Java VM to use. If you use Macintosh OS X, I include an application package that does everything for you. If you dont use OS X, now is a great time to try.
Main features:
- Multithreaded IO intensive operations
- Functional menus (Import, Move, etc)
- Quick Searching for pictures within the library
- Details view with zoom
- Edit images in external application (currently just for OS X - uses /Applications/GraphicConverter, but soon will be a user configurable option)

The Java Exorcist projects aim is to create a small and easy to use tool, that can be used to extend the Java language syntactically. Why would you do that? There are basically two reasons:
First, you just might want to fix your pet-peeve in the language itself. For example, create new keywords like unless, foreach, new operators, or generate setter getters automatically for a bean property.

Secondly, you might tune the language itself for a specific project, so the project code may look more clean and thought out. For example: specific logger keyword, which automatically checks (if statement) whether the logger should be invoked or not, or even ommits the whole logging compile-time, when its disabled! Or create a method modifier transaction to enclose the whole method in a project specific transaction.

How it works on the outside

Exorcist is a compiler of extended Java code. The compiler can be used in command-line mode, or through Ant. Basically, with no extensions configured, Exorcist only compiles the standard java code. To extend the language, you can plug in classes, which extend a single interface of the exorcist framework, and implement a single (and simple) method. Thats it.

How it works inside

Exorcist works like a pre-processor. It translates the extended language into plain Java code, and then compiles it using the standard Java compiler (javac).

To analyze a language, there are two steps involved. The first is a Lexical analysis, the second is the Parsing of the lexical tokens. Lexical tokens are strings, numbers, operators, dots, semicolons, etc. These are also called terminal symbols, because they can not be analyzed further. During parsing, lexical tokens are read, and non-terminal symbols may be produced.

These include things like: expression, method body, declaration, if-statement, etc. The Exorcists tranformation engine works basically with lexical token lists. Each extension first matches itself to the start of the received token list, using terminal and non-terminal symbols freely. If the match is detected, the extension is free to modify the input token list as it pleases, and with it modify the output clean Java source code.

TwistedJava provides an implementation of the Perspective Broker protocol in Java.
TwistedJava is an LGPLed implementation of the Perspective Broker protocol for Java. PB is a remote object protocol, similar to RMI, supporting multiple programming languages.
Included is a policy (Straw) written by Brandon Wiley that lets you use remote Java objects transparently.
You can read the README for the latest version, or read the API javadocs.
Enhancements:
- Adds support for logging in to Twisted 1.1 PB servers.

The Java developer is ideal for beginners, based on J2SDK 1.3 version, thats why it can be runned on all the operation systems except Windows. Its editor shows the code with syntax highlight, it has redo-undo function.

The work is easy with the structure panel and the file browser. You only need one push-button to compile/run, shows the compiling errors clearly. Running is in an virtual console at the same time, so writing console programs can be possible.

Free Java software can also be used not just in Java but for acquiring HTML language. Multiple languages are supported, and an English translation is included.