Checked exception thrown when an attempt is made to invoke or complete an
I/O operation upon channel that is closed, or at least closed to that
operation. That this exception is thrown does not necessarily imply that
the channel is completely closed. A socket channel whose write half has
been shut down, for example, may still be open for reading.
For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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