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Inter Thread Communication is one of the distinct facility in multi Threading application development of java. In real world Inter Thread communication based applications of java works faster when compared to all the other applications in java. Inter-Thread communication is all about making synchronized Threads communicate with each other. It is a mechanism in which a Thread is paused running in its critical section and another Thread is allowed to enter in the same critical section to be executed. It is implemented by following methods of Object class wait() : Tells the calling Thread to give up monitor and go to sleep until some other Thread enters the same monitor and call notify. Causes current Thread to release the lock and wait until either another Thread invokes the notify() method or the notifyAll() method for this object, or a specified amount of time has elapsed. The current Thread must own this object's monitor.

There are two ways to create threads. 1. Create threads implementing Runnable interface 2. Create threads Extending thread class When to use Runnable interface Use Runnable interface when your class is extending some other class. Since in Java mulitple inheritance is not possible we use Runnable interface to create threads.

Universal Java Thread dump analyzer is a free tool that parses all formats of Thread dumps and produces beautiful graphs,insightful metrics. It's intelligent Thread dump analysis patterns identifies root cause for CPU spikes, Poor response time, unresponsive JVM, deadlocks, OutOfMemoryError.

Package java.util.concurrent.atomic Description A small toolkit of classes that support lock-free thread-safe programming on single variables. In essence, the classes in this package extend the notion of volatile values, fields, and array elements to those that also provide an atomic conditional update operation of the form: boolean compareAndSet(expectedValue, updateValue);

"Threads in Forum : Spring Surf"

"The NetKernel Resource Oriented Computing (ROC) platform separates architecture from code. With ROC you can compose your architectural design independently from implementation code. By keeping the details of code separate from high-level information architecture you gain: freedom of choice in implementation language rapid click-fit compositional development long-term evolvable solutions Threading and scheduling is managed by the microkernel so your code execution is efficiently optimised with linear scaling on multi-core without the need to learn new languages. Something brand-new also comes from separating architecture and code. NetKernel provides system-wide caching of every area of your system. For free. No configuration. NetKernel learns what information is reusable and reuses it. This makes NetKernel systems fast. Very fast."

"LMAX aims to be the fastest trading platform in the world. Clearly, in order to achieve this we needed to do something special to achieve very low-latency and high-throughput with our Java platform. Performance testing showed that using queues to pass data between stages of the system was introducing latency, so we focused on optimising this area. "

What is serialVersionUID? What is it Used For???