BufferedReader default buffer size?

The default buffer size is 8192 characters

http://developer.android.com/reference/java/io/BufferedReader.html

 BufferedReader(Reader in)
Constructs a new BufferedReader, providing in with a buffer of 8192 characters.

Besides this documentation, I've extraced the rt.jar archive, and decompiled the BufferedReader.class from java.io.* using JD-GUI, this is what I found in the class definition:

private static int defaultCharBufferSize = 8192;

It isn't specified. On purpose. It's been 4096 for some years in the Sun/Oracle Java JDKs but don't rely on it.