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Deduplication is widely adopted in virtual machine(VM) backup to save storage space. However, the deduplication storage could cause serious fragmentation, which severely affects the performance of restoring VMs. Current studies mainly focus on backups from a single data source, whereas the backup of VM images is usually a group of behaviors. Exploiting the block reference helps to defragment deduplication...
The using of multiple custom class loaders in component-based Java programs may lead to more runtime type errors. These errors can happen at various program statements and may be wrapped in different types of exceptions by JVM, therefore posing difficulties for dealing with them. Traditional static analysis approaches only consider static types and thus cannot detect many of them. We propose a semi-static...
As applications grow more and more complex, the current software faces a great challenge in dynamism. This paper proposes to modernize legacy software towards runtime plug-and-play architecture using service-oriented component model. Our object is to provide runtime plug-and-play feature for software to simplify development and adapt to changing execution environment. We propose a two-stage modernization...
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