jcontrol.system
Class ErrorHandler

java.lang.Object
  jcontrol.system.ErrorHandler

public class ErrorHandler
extends Object

The JControl Error-Handler. The method onError() of this class is automatically invoked by the JControl virtual machine if an error happened. If the Error-Handler does not provide a textual error message, the error code can be decoded using the table below.

Error code	Eror description
1	HandleError, internal VM-error
2	NullPointerException
3	OutOfMemoryError, internal VM-error
4	BytecodeNotAvailableError, internal VM-error
5	BytecodeNotSupportedError, internal VM-error due to VM limitations
6	BytecodeNotDefinedError, internal VM-error
7	ArithmeticException, e.g. Divide by zero
8	NegativeArraySizeException
9	UnsuppordedArrayTypeError
10	ArrayIndexOutOfBoundsException
11	ClassCastException
12	NoCodeError, invoke of a method with no body
13	WaitForMonitorSignal, used internally by VM
14	ExternalNativeError, executing native code from external memory is forbidden
15	FatalStackFrameOverflowError, internal VM-error on deep recusion
16	InstantiationException on interface or abstract
17	IllegalMonitorStateException on monitorexit
18	UnsatisfiedPrelinkError, classloader error, compile again
19	ClassFormatError, classloader error, compile again
20	ClassTooBigError, classloader error due to VM limitations
21	PreLinkError, classloader error, compile again
22	PreLinkedUnresolvedError, classloader error, compile again
23	UnsuppordedConstantTypeError, classloader error due to VM limitations
24	MalformatedDescriptorError, classloader error, compile again
25	RuntimeRefTableOverrunError, internal VM-error
26	NoSuchFieldError, reference error, compile again
27	IllegalAccessError, private reference error, compile again
28	NoSuchMethodError, reference error, compile again
29	TooMuchParametersError, invokation error due to VM limitations
30	ThrowFinalError, uncatched java runtime exception in some thread
31	NoClassDefFoundError, upload missing classes
32	ArrayIndexOutOfBoundsException
33	ArrayDimensionError, max. 2 dimensions are supported
34	DeadlockError, two or more Threads are locking each other
35	IncompatibleClassChangeError
36	NotImplementedError
37	WatchdogError
38	DoubleDIDError, there are two devices with the same DID on CAN bus

Author:

Helge Böhme

Available on JControl Devices:

all

Constructor Summary

ErrorHandler()

Method Summary

static void

onError(int code, String message, int jpc, int npc, boolean jpcext) Just display the error message

Methods inherited from class java.lang.Object

clone, equals, notifyAll, wait

Constructor Detail

ErrorHandler

public ErrorHandler()

Method Detail

onError

public static void onError(int code,
                           String message,
                           int jpc,
                           int npc,
                           boolean jpcext)

Just display the error message

Parameters:

code - the error code

message - the error message (textual error description)

jpc - points to the last bytecode to be executed when the error occured

npc - points to the machine instruction that was producing the error

jpcext - set if jpc points to external memory (e.g. flash)