Language: Java
Rule: S1143
System: SonarQube Developer 9.9.1
Reporting a return statement from a finally block, but return is associated with a lambda function within the block, not returning from the block itself.
I notice that this has been raised before, 4 years ago in Feb 2019 under “False positive S1143 reports return inside lambda function”.
Example…
try {
// Do some work
} finally {
// Call a method that takes a lambda, e.g. updating a map using computeIfPresent
map.computeIfPresent(key, (existingKey, existingValue) -> {
existingValue.process();
// This is the 'return' that triggers the false positive, but it simply removes the entry from the map.
// It is not returning from the finally block, but rather from the lambda.
return null;
});
}