How to get Exception reason
Hi,
I'm little bit confused about what Javacard programmer do, when his code raises an exception. I mean, when it happens in JavaSE, it's very simple to see exception reason with getStackTrace() or getMessage(). but JavaCard's Exception class does not have printStackTrace method (because usually there is nothing to print on :D ) and does not even has a String class to use getMessage. so is there any common way to see exception reason ? some exceptions have getReason method, but AFAIK most of them does not.
BR.
Hi,
You can use something like this to propagate the error to the APDU interface:
try {
doSomethingThatThrowsException();
catch(SomeException e) {
ISOException.throwIt((short)(0xa000 + e.getReason()));
}This will give you a status word of 0xa00R where R is the reason code.
Cheers,
Shane
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