ThreadPoolExecutor

constructor(corePoolSize: Int, maximumPoolSize: Int, keepAliveTime: Long, unit: TimeUnit, workQueue: BlockingQueue<Runnable>, threadFactory: ThreadFactory = Executors.defaultThreadFactory(), handler: RejectedExecutionHandler = defaultHandler)

constructor(corePoolSize: Int, maximumPoolSize: Int, keepAliveTime: Long, unit: TimeUnit, workQueue: BlockingQueue<Runnable>, handler: RejectedExecutionHandler)

Creates a new ThreadPoolExecutor with the given initial parameters and the default thread factory.

corePoolSize

the number of threads to keep in the pool, even if they are idle, unless allowCoreThreadTimeOut is set

maximumPoolSize

the maximum number of threads to allow in the pool

keepAliveTime

when the number of threads is greater than the core, this is the maximum time that excess idle threads will wait for new tasks before terminating.

unit

the time unit for the keepAliveTime argument

workQueue

the queue to use for holding tasks before they are executed. This queue will hold only the Runnable tasks submitted by the execute method.

handler

the handler to use when execution is blocked because the thread bounds and queue capacities are reached

if one of the following holds:

corePoolSize < 0

keepAliveTime < 0

maximumPoolSize <= 0

maximumPoolSize < corePoolSize

if workQueue or handler is null