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## org.openqa.selenium.server
Class IOHelper

    java.lang.Object
      org.openqa.selenium.server.IOHelper

    public class IOHelper

extends java.lang.Object

Utility class for java.io annoyances.

Constructor Summary
`IOHelper()`

Method Summary
`static void` | `close(java.io.InputStream stream)`
`static void` | `copyStream(java.io.InputStream in, java.io.OutputStream out)` Copy remaining stream content to another stream.
`static void` | `copyStream(java.io.InputStream in, java.io.OutputStream out, int copyBufferSize)` Copy remaining stream content to another stream.
`static byte[]` | `readFile(java.lang.String filePath)` Read a file on the file system and return its content as a stream of bytes.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### IOHelper

    public IOHelper()

Method Detail

### close

    public static void close(java.io.InputStream stream)

### readFile

    public static byte[] readFile(java.lang.String filePath)
                           throws java.io.IOException

  Read a file on the file system and return its content as a stream of bytes.

  Parameters:
    `filePath` - Path of the file to read. Cannot be null.
  Returns:
    File content. Never null.
  Throws:
    `java.io.IOException` - on error

### copyStream

    public static void copyStream(java.io.InputStream in,
                                  java.io.OutputStream out)
                           throws java.io.IOException

  Copy remaining stream content to another stream.

  Parameters:
    `in` - Input stream to copy (remaining) content from. Cannot be null.
    `out` - Output stream to copy content to. Cannot be null.
  Throws:
    `java.io.IOException` - on IO error.
    `java.lang.AssertionError` - If `in` or `out` is null.

### copyStream

    public static void copyStream(java.io.InputStream in,
                                  java.io.OutputStream out,
                                  int copyBufferSize)
                           throws java.io.IOException

  Copy remaining stream content to another stream.

  Parameters:
    `in` - Input stream to copy (remaining) content from. Cannot be null.
    `out` - Output stream to copy content to. Cannot be null.
    `copyBufferSize` - Size of the maximum chunk of data that will be copied in one step. A buffer a this size will be allocated internally so beware of the usual speed vs. memory tradeoff. Must be strictly positive.
  Throws:
    `java.io.IOException` - on IO error.
    `java.lang.AssertionError` - If `copyBufferSize` is negative, `in` is null or `out` is null.

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