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Catching Exception
seems like an efficient way to handle multiple possible exceptions.
Unfortunately, it traps all exception types and so both checked and runtime exceptions, casting too broad a net.
Indeed, was it really the intention of developers to also catch runtime exceptions? To prevent any misunderstanding,
if both checked and runtime exceptions are really expected to be caught, they should be explicitly listed in the catch
clause.
Noncompliant Code Example
try {
// do something that might throw an UnsupportedDataTypeException or UnsupportedEncodingException
} catch (Exception e) { // Noncompliant
// log exception ...
}
Compliant Solution
try {
// do something
} catch (UnsupportedEncodingException|UnsupportedDataTypeException|RuntimeException e) {
// log exception ...
}
or if runtime exceptions should not be caught:
try {
// do something
} catch (UnsupportedEncodingException|UnsupportedDataTypeException e) {
// log exception ...
}
Exceptions
No issue is raised if a method in the try
block explicitly throws an Exception
.
See
- MITRE, CWE-396 - Declaration of Catch for Generic Exception
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