Abstract: Continuous authentication of a user of a computing device is established to ensure security of the computing device. A smart pen fingerprint print reader identifies a user fingerprint and a determination is made to grant access to a computer device for this user. Communication with the computing device is accomplished through the smart pen. A security event is detected when the continuous user contact with the smart pen device is disrupted. In addition, user inactivity or exceeding a threshold distance between the smart pen device and the computing device may also trigger a security event. Detection of a security event will cause the screen content of the computing device to become unintelligible and the computing device becomes inoperable.

Abstract: Continuous authentication of a user of a computing device is established to ensure security of the computing device. A smart pen fingerprint print reader identifies a user fingerprint and a determination is made to grant access to a computer device for this user. Communication with the computing device is accomplished through the smart pen. A security event is detected when the continuous user contact with the smart pen device is disrupted. In addition, user inactivity or exceeding a threshold distance between the smart pen device and the computing device may also trigger a security event. Detection of a security event will cause the screen content of the computing device to become unintelligible and the computing device becomes inoperable.

Abstract: A method, system, and program product for removing exception classes that match a pattern is disclosed. Exception classes are searched for those of the exception classes that match that pattern. The parent classes of matched exception classes are refactored to accept an exception type argument. Code that throws the matched exceptions is rewritten by replacing the exception class with the parent class and adding a corresponding exception type. Code that catches the thrown exceptions is rewritten by changing a catch clause to catch a parent exception class and inserting a case statement for the exception type in that catch clause. The matched exception classes are removed.

Abstract: A method, system and computer program product for optimizing an object-oriented program, which comprises identifying synthetic accessor methods added to the program during a compilation to allow access to the members of the inner classes and replacing the synthetic accessor methods with direct accesses to the members of the inner classes.

Abstract: A method, system and computer program product for optimizing an object-oriented program, which comprises identifying synthetic accessor methods added to the program during a compilation to allow access to the members of the inner classes and replacing the synthetic accessor methods with direct accesses to the members of the inner classes.

Abstract: A method, system, and program product for removing exception classes that match a pattern is disclosed. Exception classes are searched for those of the exception classes that match that pattern. The parent classes of matched exception classes are refactored to accept an exception type argument. Code that throws the matched exceptions is rewritten by replacing the exception class with the parent class and adding a corresponding exception type. Code that catches the thrown exceptions is rewritten by changing a catch clause to catch a parent exception class and inserting a case statement for the exception type in that catch clause. The matched exception classes are removed.

Abstract: A computer implemented method, computer program product, and data processing system for reducing the number of inner classes in a compiled computer program written in an object-oriented programming language. An outer class of the compiled computer program is received, wherein the outer class contains an inner class, wherein the outer class comprises instructions to create an instance of an inner class. The instance is to be used as one of a callback, a listener command, a set of instructions by which an object instance of the inner class transfers information to the corresponding containing instance of the outer class, and combinations thereof. A transformation of the outer class is performed by moving methods of the inner class, as well as their contained instructions, into the outer class. The behavior of the compiled computer program remains unchanged.