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fix(UnusedVariable): skip synthetic fields with no explicit source position #6018

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fix(UnusedVariable): skip synthetic fields with no explicit source position #6018

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5 changes: 5 additions & 0 deletions core/src/main/java/com/google/errorprone/bugpatterns/UnusedVariable.java
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Original file line number Diff line number Diff line change
Expand Up @@ -704,6 +704,11 @@ && exemptedFieldBySuperType(getType(variableTree), state)) {
if (wellKnownKeep.shouldKeep(variableTree)) {
return;
}
// Skip variables that don't have an explicit source position
// (e.g., Lombok-generated fields like @Slf4j's log field).
if (!hasExplicitSource(variableTree, state)) {
return;
}
switch (symbol.getKind()) {
case FIELD -> {
// We are only interested in private fields and those which are not special.
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