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JAVA-5816

Author: vbabanin

driver-core/src/main/com/mongodb/internal/connection/ByteBufferBsonOutput.java

@@ -451,6 +451,8 @@ private static int writeOnArrayAscii(final String str,
                                          final boolean checkNullTermination) {
         int pos = arrayPosition;
         int sp = 0;
+        // Fast common path: This tight loop is JIT-friendly (simple, no calls, few branches),
+        // It might be unrolled for performance.
         for (; sp < str.length(); sp++, pos++) {
             char c = str.charAt(sp);
             if (checkNullTermination && c == 0) {