Check for removed methods on Pack200.Packer and Pack200.Unpacker interfaces

The following methods are not available in Java SE 11:

Applications that need to monitor progress of the packer or unpacker objects, can poll the value of the PROGRESS property instead.

For Javadoc, see Interface Pack200.Packer and also Interface Pack200.Unpacker.

For more information on Java SE 11 changes, see Removed java.* APIs.

Note: starting in Java SE 14, the java.util.jar.Pack200 class was removed in addition to its java.util.jar.Pack200.Packer and java.util.jar.Pack200.Unpacker interfaces.