Abstract: Mechanisms and techniques provide a system for composing a complex constructs for use on a graphical display of a computerized device. The system receives a selection of basic constructor objects for use in the complex object. The basic constructor objects are chosen from a set of basic constructor object types including a button object type, a dial object type, an edit object type, and a container object type. The systems also receives a selection of one or more personalities to assign to the basic constructor objects. The personalities define extensions to basic constructor object operation and define a view for the object when rendered on an interface. The system combines the personalities and the basic constructor objects to define complex constructs such as menus, a scrollbars and the like. Personalities can be modified to alter the complex construct from one operational state to another.

Abstract: A code generating system generates, from code in a program, native code that is executable by a computer system. The computer system includes a memory subsystem including a heap in which objects are stored and a stack in which method variables are stored. The code generating system may be included in a just-in-time compiler used to generate native code that is executable by a computer system, from a program in Java Byte Code form, and specifically determines, in response to Java Byte Code representative of an operator for enabling instantiation of a new object, whether the object to be instantiated contains a variable to be used in processing of the received program code portion which can be promoted to a method variable, and, if so, generates native code to enable said variable to be instantiated on the stack.

Abstract: A code generating system generates, from code in a program, native code that is executable by a computer system. The code generating system may be included in a just-in-time compiler used to generate native code that is executable by a computer system, from a program in Java Byte Code form, and specifically generates, in response to Java Byte Code representative of a synchronization statement that synchronizes access by multiple threads of execution to at least one variable contained in the Java Byte code, one or more native code instructions that implements a wait-free synchronization methodology to synchronization access to the at least one variable. Since the instructions which implement the wait-free synchronization methodology do not require calls to the operating system, they can generally be processed more rapidly than other synchronization techniques which do require operating system calls.