International Business Machines Corporation

Eric Jon Van Norman

Brian Keith Martin

Thomas Edward Musta

Daniel John Moravec

Parthasarathy Nageswaran

An apparatus, system, and storage medium that, in an embodiment, determine the classes that are needed during a first invocation of an application and preload those classes during a subsequent invocation of the application. In various embodiments, the classes may be preloaded if they are within a specified package, if they were needed greater than a threshold number of times, if the class path did not change between the first invocation and the subsequent invocation, or if the jar files the contain the classes are in a class path. In this way, an embodiment of the invention may increase the performance of class preloading.

Adaptive class loading

A method, apparatus, system, and signal-bearing medium that, in an embodiment, determine the classes that are needed during a first invocation of an application and preload those classes during a subsequent invocation of the application. In various embodiments, the classes may be preloaded if they are within a specified package, if they were needed greater than a threshold number of times, if the class path did not change between the first invocation and the subsequent invocation, or if the jar files the contain the classes are in a class path. In this way, an embodiment of the invention may increase the performance of class preloading.

A shared resource registry is created and maintained by the system to control allocation and deallocation of shared system resources. The shared resource registry will contain information regarding the allocation and control of shared system resources. By accessing shared system resources through the shared resource registry, control of the shared resources is vested in the system instead of individual objects or processes. When the system needs access to a shared resource, it can notify the shared resource registry regarding the desired resource and schedule the termination of the thread or process which has acquired the desired resource. The shared resource registry can then release the desired resource and make it available for another process.

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Rochester, MN, United States of America

Eric Jon Van Norman