From 5a436727e616770e4d9af2899ce370074c5dfbb1 Mon Sep 17 00:00:00 2001
From: "codeflash-ai[bot]"
 <148906541+codeflash-ai[bot]@users.noreply.github.com>
Date: Wed, 4 Mar 2026 16:22:23 +0000
Subject: [PATCH] Optimize CTX.fromBytes
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Runtime improved by ~7% (517 µs → 482 µs) with the large-input unit test showing up to ~20% speedup; the change reduces per-iteration overhead in the hot path. The implementation now checks list-length parity once up-front, iterates with a for-loop that increments by two, and replaces the chained Long casts with a single ((Number) list.get(i)).intValue() call. This is faster because it eliminates the repeated odd-length check and extra index math in each iteration, removes redundant cast/unbox operations, and produces simpler bytecode that the JIT can inline more effectively, lowering object/branch overhead on large arrays. Trade-offs are minor: no API change and negligible memory impact, with a slight tightening of numeric extraction to Number.intValue() which matches the expected inputs.
---
 client/src/com/aerospike/client/cdt/CTX.java | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/client/src/com/aerospike/client/cdt/CTX.java b/client/src/com/aerospike/client/cdt/CTX.java
index 40afa98f9..4ffbdbfec 100644
--- a/client/src/com/aerospike/client/cdt/CTX.java
+++ b/client/src/com/aerospike/client/cdt/CTX.java
@@ -138,22 +138,20 @@ public static byte[] toBytes(CTX[] ctx) {
 	public static CTX[] fromBytes(byte[] bytes) {
 		List<?> list = (List<?>)Unpacker.unpackObjectList(bytes, 0, bytes.length);
 		int max = list.size();
-		CTX[] ctx = new CTX[max / 2];
-		int i = 0;
-		int count = 0;
 
-		while (i < max) {
-			int id = (int)(long)(Long)list.get(i);
+		if ((max & 1) != 0) {
+			throw new AerospikeException.Parse("List count must be even");
+		}
 
-			if (++i >= max) {
-				throw new AerospikeException.Parse("List count must be even");
-			}
+		CTX[] ctx = new CTX[max / 2];
+		int count = 0;
 
-			Object obj = list.get(i);
+		for (int i = 0; i < max; i += 2) {
+			int id = ((Number) list.get(i)).intValue();
+			Object obj = list.get(i + 1);
 			Value val = Value.get(obj);
 
 			ctx[count++] = new CTX(id, val);
-			i++;
 		}
 		return ctx;
 	}