An application does not generally call thegetContent method in this class directly. Instead, an application calls thegetContent method in classURL or inURLConnection. The application's content handler factory (an instance of a class that implements the interfaceContentHandlerFactory set up by a call tosetContentHandlerFactory is called with aString giving the MIME type of the object being received on the socket. The factory returns an instance of a subclass ofContentHandler, and itsgetContent method is called to create the object.

If no content handler could befound, URLConnection will look for a content handler in a user-definable set of places. Users can define a vertical-bar delimited set of class prefixes to search through by defining the"java.content.handler.pkgs" property. The class name must be of the form:

{package-prefix}.{major}.{minor}

where{major}.{minor} is formed by taking the content-type string, replacing all slash characters with aperiod ('.'), and all other non-alphanumeric characters with the underscore character '_'. The alphanumeric characters are specifically the 26 uppercase ASCII letters 'A' through 'Z', the 26 lowercase ASCII letters 'a' through 'z', and the 10 ASCII digits '0' through '9'.

e.g. YoyoDyne.experimental.text.plain

If the loading of the content handler class would be performed by a classloader that is outside of the delegation chain of the caller, the JVM will need the RuntimePermission "getClassLoader".