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The following blocking operations use the ForkJoinPool`ForkJoinPool.ManagedBocker ManagedBlocker` mechanism when invoked from a virtual thread. Parallelism is is temporarily extended expanded until the blocking operation completes.
| API | Method(s) | Notes |
|---|---|---|
| java.lang.Object | wait | |
| java.lang.Process | waitFor | Windows only |
| java.io.File | All file I/O operations | |
| java.io.FileInputStream | open, read, skip | |
| java.io.FileOutputStream | open, write | |
| java.io.RandomAccessFile | open, read, write, seek | |
| java.net.InetAddress | All lookup operations | InetAddress SPI in the works that will allow deploying a virtual thread friendly name resolver |
| java.nio.MappedByteBuffer | force | |
| java.nio.channels.Selector | All blocking selection operations | |
| java.nio.channels.FileChannel | read, write, lock, truncate, force, transferTo | |
| java.nio.file | All file I/O operations |
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The following are some of the blocking operations that use the ForkJoinPool`ForkJoinPool.ManagedBocker ManagedBocker` mechanism by way of the operations in the previous table.
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