org.apache.commons.io.input

## Class ClosedInputStream

- java.lang.Object
- - java.io.InputStream
  - - org.apache.commons.io.input.ClosedInputStream

- All Implemented Interfaces:
    Closeable, AutoCloseable

      public class ClosedInputStream
      extends InputStream

  Closed input stream. This stream returns EOF to all attempts to read something from the stream.

  Typically uses of this class include testing for corner cases in methods that accept input streams and acting as a sentinel value instead of a `null` input stream.

  Since:
    1.4

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static ClosedInputStream` | `CLOSED_INPUT_STREAM` A singleton.

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `ClosedInputStream()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `int` | `read()` Returns -1 to indicate that the stream is closed.

    - ### Methods inherited from class java.io.InputStream

      `available, close, mark, markSupported, read, read, reset, skip`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### CLOSED_INPUT_STREAM

          public static final ClosedInputStream CLOSED_INPUT_STREAM

      A singleton.

  - ### Constructor Detail

    - #### ClosedInputStream

          public ClosedInputStream()

  - ### Method Detail

    - #### read

          public int read()

      Returns -1 to indicate that the stream is closed.
      Specified by:
        `read` in class `InputStream`
      Returns:
        always -1

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