address PR reviews. use java util Optional. Consolidate two vector codec proxies. e.t.c

SiyaoIsHiding · SiyaoIsHiding · commit 3cc1b6d2c3a6 · 2025-01-17T18:34:43.000+08:00
diff --git a/core/src/test/java/com/datastax/oss/driver/internal/core/type/util/VIntCodingTest.java b/core/src/test/java/com/datastax/oss/driver/internal/core/type/util/VIntCodingTest.java
@@ -0,0 +1,4 @@
+import junit.framework.TestCase;
+public class VIntCodingTest extends TestCase {
+  
+}

-Original file line number
+Diff line change
@@ @@ -0,0 +1,4 @@ @@
 +import junit.framework.TestCase;
 +public class VIntCodingTest extends TestCase {
++
 +}