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WebJar for arrive

An OSGi bundle used in integration tests. This bundle exports the package containing the service definitions for HelloService3a, HelloService3b, and HelloService3c, and embeds the Jsr330BundleActivator and javax.inject and uses the Jsr330BundleActivator to find a provider for HelloService3a, HelloService3b, HelloService3c, and set up listeners for the providers' dependencies and when the dependencies arrive, expose the service to listeners.

This small library provides an optimized solution to a problem where tasks for a particular key need to be processed sequentially as they arrive. This kind of problem can be solved by a SingleThreadExecutor, however it is not efficient. The issue is that the tasks for unrelated keys are not being processed in parallel, instead they are put into a queue common to all keys and wait for the single thread to execute them. This library allows them to be executed concurrently. Moreover this library works well in a situation where all the possible keys and their number is not known upfront.