Datahandler from file activation jar

Add menu. Exception: java. ClassNotFoundException: javax. DataHandler even though javax. Null value in method parameter [duplicate] December 28, Java Leave a comment Questions: This question already has answers here: Which overload will get selected for null in Java?

How to find the date of an object in Java. Any idea? You still need both jars - not sure why. DataHander and has no sign related to the mailapi. Do I still need the mailapi. If I get it from sun, where should I put it? DataHandler from. Additionally to the activation. This library is located somewhere on suns website. Post by J H fixed it by adding activation. Post by J H application. Post by J H activation. Guy Rixon. This method returns an array containing all commands for the type of data represented by this DataHandler.

Use the search semantics as defined by the CommandMap installed in this DataHandler. If the DataHandler was instantiated with an object, return the object. Returns: the content. DataHandler class itself. The DataContentHandlerFactory can only be set once. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy. Object javax. DataHandler All Implemented Interfaces: Transferable public class DataHandler extends Object implements Transferable The DataHandler class provides a consistent interface to data available in many different sources and formats.

It manages simple stream to string conversions and related operations using DataContentHandlers. It provides access to commands that can operate on the data.

The commands are found using a CommandMap. A convenience method that takes a CommandInfo object and instantiates the corresponding command, usually a JavaBean component. Get an OutputStream for this DataHandler to allow overwriting the underlying data. Return the DataSource associated with this instance of DataHandler. Return the name of the data object. Return the MIME type of this object as retrieved from the source object.

Get the InputStream for this object. Write the data to an OutputStream.