Stub classes to allow other classes to compile.
You can import the java.io emulated classes by adding the following import to your .gwt.xml file:
<inherits name="com.googlecode.gwtx.java.Io"/>
WARNING: to use the OutputStream emulation, you must put gwtx.jar in your classpath BEFORE gwt-user.jar that contains an empty OutputStream emulation
The File emulation maps java.io.File concepts to resources accessed through HTTP(s). Only read methods are supported.