ReplaceAll.java

@BenchmarkMode(Mode.AverageTime)
@Fork(1)
@State(Scope.Thread)
@Warmup(iterations = 5, time = 1)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Measurement(iterations = 10, time = 1)
public class ReplaceAll {

    @Param({"", "somePathNoDoT", "some.Path.With.Dot"})
    String value;

    @Benchmark
    public String replaceAllWithContains() {
        return value.contains(".") ? value.replaceAll("\\.", "%2E") : value;
    }

    @Benchmark
    public String replaceAll() {
        return value.replaceAll("\\.", "%2E");
    }

    @Benchmark
    public String replace() {
        return value.replace(".", "%2E");
    }

    @Benchmark
    public String replaceWithContains() {
        return value.contains(".") ? value.replace(".", "%2E") : value;
    }

}