Abstract: A data feed server configured for tracking usage of a data feed includes a data feed server configured to respond to polls from client computers and transmit a data feed in response to a poll from a client computer. The data feed server is further configured to received usage data from a client computer that indicates usage of the data feed at the client computer. A client computer for accessing a data feed includes a client computer configured to communicate with at least one data feed server that publishes a data feed. The client computer selectively polls the data feed server for the data feed. The client computer is further configured to record usage data indicating usage of the data feed at the client computer and, in a subsequent polling of the data feed sever, report the usage data for the data feed to the data feed server.

Abstract: A system and associated method for tracing state information of a target object. The target object is a data item of an application object executed in a virtual machine. Upon detecting a triggering event pertaining to the target object while executing the application object, the virtual machine stores the state information of the target object in a target state info object in a heap space such that the state information is maintained across instances of the virtual machine. The target object is associated with the target state info object by using a weak hash map entry such that the target state info object is garbage collected when the target object is garbage collected and such that the state information is not excessively accumulated. A system dump containing the target object and the target state info object is produced when the application object fails.

Abstract: A system and associated method for tracing state information of a target object. The target object is a data item of an application object executed in a virtual machine. Upon detecting a triggering event pertaining to the target object while executing the application object, the virtual machine stores the state information of the target object in a target state info object in a heap space such that the state information is maintained across instances of the virtual machine. The target object is associated with the target state info object by using a weak hash map entry such that the target state info object is garbage collected when the target object is garbage collected and such that the state information is not excessively accumulated. A system dump containing the target object and the target state info object is produced when the application object fails.

Abstract: A data feed server configured for tracking usage of a data feed includes a data feed server configured to respond to polls from client computers and transmit a data feed in response to a poll from a client computer. The data feed server is further configured to received usage data from a client computer that indicates usage of the data feed at the client computer. A client computer for accessing a data feed includes a client computer configured to communicate with at least one data feed server that publishes a data feed. The client computer selectively polls the data feed server for the data feed. The client computer is further configured to record usage data indicating usage of the data feed at the client computer and, in a subsequent polling of the data feed sever, report the usage data for the data feed to the data feed server.

Abstract: One aspect of the present invention provides a alternative hypertext protocol to enable the selection of quick-to-download/reduced content from a website. In one embodiment, this alternative hypertext protocol uses the same structure as HTTP, but contains a unique predefined Uniform Resource Identifier (URI) scheme for easy designation by clients. On the web server, content is defined for HTTP connections and a quick-to-download version of this content is defined for alternative hypertext protocol connections. The HTTP content is made available on a first port on the web server, and the quick-to-download alternative hypertext protocol content is made available on a second port on the web server. To access the quick-to-download content, an internet connection is established to the second port of the web server using the alternative hypertext protocol. Once a connection is established to the second port, the web server transmits the quick-to-download content via the alternative hypertext protocol.