LowFile-scopeJava Plug & play

Consolidate multiple similar methods

Merge near-duplicate methods into a single parameterized method or strategy.

Why this matters

Single source of truth reduces maintenance and bugs.

Side-by-side examples engineers can pattern-match during review.

Avoid

saveUserA(User u){...}
saveUserB(User u){...}

Prefer

saveUser(User u, SaveMode mode){...}

Bad

calculateX(), calculateX2()

Good

calculate(mode)

From the same buckets as this rule.

Critical
Avoid Duplicating String Literals
Store repeated string literals in constants or variables to improve maintainability and reduce redundancy.
duplication-complexitymaintainability
Critical
Avoid Redundant `None` Comparisons
Identify cases where `x is None` or `x is not None` is used redundantly when `x` is always or never `None`. This may indicate a deeper logic issue.
duplication-complexityreadability-refactor+1
High
Avoid Functions That Always Return the Same Value
Identify functions that return the same value regardless of input. This may indicate poor design or a logic error.
duplication-complexityreadability-refactor+1