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When the JVM interacts with a file system that operates over an unreliable network, file I/O might incur a large performance penalty. In such cases, avoid file I/O over the network while holding a lock. File operations (such as logging) that could block waiting for the output stream lock or for I/O to complete could be performed in a dedicated thread to speed up task processing. Logging requests can be added to a queue, assuming that the queue's {{put()}} operation incurs little overhead as compared to file I/O \[[Goetz 2006|AA. Bibliography#GoetzReferences#Goetz 06]\]. |
Noncompliant Code Example (Deferring a Thread)
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According to the Java API class {{Object}} documentation \[[API 2006|AA. Bibliography#APIReferences#API 06]\] |
Note that the
waitmethod, as it places the current thread into the wait set for this object, unlocks only this object; any other objects on which the current thread may be synchronized remain locked while the thread waits. This method should only be called by a thread that is the owner of this object's monitor.
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