ParametersInterceptor: IndexOutOfBoundsException while logging parameters
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Key: WW-2713
URL: https://issues.apache.org/struts/browse/WW-2713
Project: Struts 2
Issue Type: Bug
Components: Core Interceptors
Affects Versions: 2.0.11.1
Environment: Struts 2.0.11.1, Eclipse, Unit Test
Reporter: Eduard Papa
I had written a unit test which was running successfully until I turned on
DEBUG level in log4j. This caused the unit test to fail and I tracked down the
problem to the ParametersInterceptor, line 241 in xwork-2.0.4.jar:
logEntry.append(String.valueOf(valueArray[valueArray.length - 1]));
The value array there can be empty (0-length) and that line will try to access
valueArray[-1] which causes the exception.
I don't know if the user can submit input that would result in a request
parameter with an empty array, so this might not be an issue in production
applications, but I think it should be fixed for the sake of making the
ParametersInterceptor more robust, in case anyone wants to test request
parameters with empty arrays.
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