The RMI system provides an "upcall" that notifies applications when an object is no longer referenced by any VM that may have had a handle to it. These tests attempt to verify that this upcall occurs when an object is no longer referenced.

The timeout value is the period of time that the tests wait for the upcall before giving up. This timeout feature prevents the tests from hanging if the upcall does not occur. The default timeout is three seconds, you might want to increase this value if your system responds slowly.

Note
This value is separate from, and not affected by, the timeoutfactor field in the JavaTest GUI.