exception handlers - Definition. Was ist exception handlers
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Was (wer) ist exception handlers - definition

Exception Chaining; Exception wrapping

Exception handling         
PROCESS OF RESPONDING TO ANOMALOUS OR EXCEPTIONAL CONDITIONS REQUIRING SPECIAL PROCESSING IN COMPUTER PROGRAMMING
Error handling; Error handler; Try-catch block; Programming exception; Checked exceptions; Exception (computer science); Exception handler; Exception (computing); Checked exception; Exception condition; Exception (programming); Hardware exception; Run time exception; Error handling testing; Unhandled exception; Unhandled Exception; Unhandled exceptions; Unhandled Exceptions; Error reporting; Error trapping; Try catch; Exception specification; Wrong Argument; Exception mechanism; Try block; Pokémon exception handling; Pokemon exception handling; Exceptions handling; Unchecked exception; Java.lang.Exception; Java.lang.Throwable; Runtime exception; Static checking of exceptions
In computing and computer programming, exception handling is the process of responding to the occurrence of exceptions – anomalous or exceptional conditions requiring special processing – during the execution of a program. In general, an exception breaks the normal flow of execution and executes a pre-registered exception handler; the details of how this is done depend on whether it is a hardware or software exception and how the software exception is implemented.
exception handler         
PROCESS OF RESPONDING TO ANOMALOUS OR EXCEPTIONAL CONDITIONS REQUIRING SPECIAL PROCESSING IN COMPUTER PROGRAMMING
Error handling; Error handler; Try-catch block; Programming exception; Checked exceptions; Exception (computer science); Exception handler; Exception (computing); Checked exception; Exception condition; Exception (programming); Hardware exception; Run time exception; Error handling testing; Unhandled exception; Unhandled Exception; Unhandled exceptions; Unhandled Exceptions; Error reporting; Error trapping; Try catch; Exception specification; Wrong Argument; Exception mechanism; Try block; Pokémon exception handling; Pokemon exception handling; Exceptions handling; Unchecked exception; Java.lang.Exception; Java.lang.Throwable; Runtime exception; Static checking of exceptions
Special code which is called when an exception occurs during the execution of a program. If the programmer does not provide a handler for a given exception, a built-in system exception handler will usually be called resulting in abortion of the program run and some kind of error indication being returned to the user. Examples of exception handler mechanisms are Unix's signal calls and Lisp's catch and throw. (1994-10-31)
Automated exception handling         
Automated exception handling is a computing term referring to the computerized handling of errors. Runtime systems (engines) such as those for the Java programming language or .

Wikipedia

Exception chaining

Exception chaining, or exception wrapping, is an object-oriented programming technique of handling exceptions by re-throwing a caught exception after wrapping it inside a new exception. The original exception is saved as a property (such as cause) of the new exception. The idea is that a method should throw exceptions defined at the same abstraction level as the method itself, but without discarding information from the lower levels.

For example, a method to play a movie file might handle exceptions in reading the file by re-throwing them inside an exception of movie playing. The user interface doesn't need to know whether the error occurred during reading chunk of bytes or calling eof(). It needs only the exception message extracted from cause. The user interface layer will have its own set of exceptions. The one interested in cause can see its stack trace during debugging or in proper log.

Throwing the right kind of exceptions is particularly enforced by checked exceptions in the Java programming language, and starting with language version 1.4 almost all exceptions support chaining.

In runtime engine environments such as Java or .NET there exist tools that attach to the runtime engine and every time that an exception of interest occurs they record debugging information that existed in memory at the time the exception was thrown (stack and heap values). These tools are called Exception Interception and they provide "root-cause" information for exceptions in Java programs that run in production, testing, or development environments.