International Business Machines Corporation

Wilfred Cadelina Jamison

Joachim H Frank

Nataraj Nagaratnam

Gennaro A Cuomo

Curtis Reed Miles

Changes in performance in a Java program are deduced from information related to garbage collection events of the program. Assumptions are made about the system, the application and garbage collection, and changes in performance that will result from modifying the program are deduced.

Determining a benefit of reducing memory footprint of a Java application

Determining a benefit of reducing memory footprint of a java application

A virtual machine supports execution of compiler-generated code and provides an execution environment for code that may correspond to any of several different event-driven or message-driven programming models (such as state machines, rules for complex event processing and event correlation, monitoring contexts, processes, and mediations). The programming models may be used in business monitoring and/or business integration environments. A programming language is defined for execution using the virtual machine, which contains a relatively small number of instructions and which is preferably generated by a compiler from a higher-level, event-driven or message-driven model.

Virtual machine and programming language for event processing

A compiler generates code providing an execution sequence, from a declarative event-driven model, for execution by a computer. To assist in debugging the declarative event-driven model, the compiler also generates cross-references that relate steps in the generated code to elements of the declarative source code. The cross-references may be used as input to a debugger, along with the declarative source and the generated code, to assist a user who is stepping through the generated code (for example) in understanding which portion of the declarative source gave rise to the current step in the generated execution sequence.

Compiler for a declarative event-driven programming model

Debugger for a declarative event-driven programming model

Method for determining a close approximate benefit of reducing memory footprint of a Java application

A method, apparatus, and computer implemented instructions for handling requests in a network data processing system. The network data processing system includes a network and clients connected to the network. A first server is present in which the first server receives a request from a client to access a resource, performs an authentication process with the client, add information to the request in which the information indicates that the request is from a trusted source to form a modified request, and sends the modified request for processing. This modified request is received by a second server. This second server determines whether the first server is a trusted server based on the information, and provides access to the resource in response to a determination that the first server is a trusted server. If the second server receives the request directly from a client, it would process the request by itself instead of basing its trust on any of the known first servers.

Growing community of inventors

Raleigh, NC, United States of America

Wilfred Cadelina Jamison