Package org.apache.tools.ant.util

## Class KeepAliveInputStream

- java.lang.Object
- - java.io.InputStream
  - - java.io.FilterInputStream
    - - org.apache.tools.ant.util.KeepAliveInputStream

All Implemented Interfaces:
  `java.io.Closeable`, `java.lang.AutoCloseable`

    public class KeepAliveInputStream
    extends java.io.FilterInputStream

Class that can be used to wrap `System.in` without getting anxious about any client closing the stream.

In code-language it means that it is not necessary to do:

     if (out != System.in) {
       in.close();
     }

Since:
  Ant 1.6

### Field Summary

### Fields inherited from class java.io.FilterInputStream

`in`

### Constructor Summary

Constructors
`KeepAliveInputStream​(java.io.InputStream in)` Constructor of KeepAliveInputStream.

### Method Summary

All Methods Static Methods Instance Methods Concrete Methods
`void` `close()` This method does nothing.
`static java.io.InputStream` `wrapSystemIn()` Convenience factory method that returns a non-closing InputStream around System.in.

### Methods inherited from class java.io.FilterInputStream

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

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

`nullInputStream, readAllBytes, readNBytes, readNBytes, transferTo`

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

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

### Constructor Detail

#### KeepAliveInputStream

    public KeepAliveInputStream​(java.io.InputStream in)

Constructor of KeepAliveInputStream.

Parameters:
  `in` - an InputStream value, it should be standard input.

### Method Detail

#### close

    public void close()
               throws java.io.IOException

This method does nothing.

Specified by:
  `close` in interface `java.lang.AutoCloseable`
Specified by:
  `close` in interface `java.io.Closeable`
Overrides:
  `close` in class `java.io.FilterInputStream`
Throws:
  `java.io.IOException` - as we are overriding FilterInputStream.

#### wrapSystemIn

    public static java.io.InputStream wrapSystemIn()

Convenience factory method that returns a non-closing InputStream around System.in.

Returns:
  InputStream
Since:
  Ant 1.8.0