fix: prevent potential off-by-1 error in internal mapOf() helper (#107)

Author: stklcode

CHANGELOG.md

@@ -3,6 +3,8 @@
 ### Dependencies
 * Updated Jackson to 2.20.0 (#106)
 
+### Fix
+* Prevent potential off-by-1 error in internal `mapOf()` helper (#107)
 
 ## 1.5.2 (2025-07-16)
 

src/main/java/de/stklcode/jvault/connector/HTTPVaultConnector.java

@@ -732,7 +732,7 @@ private static Map<String, String> mapOfStrings(Object... keyValues) {
      */
     private static Map<String, Object> mapOf(Object... keyValues) {
         Map<String, Object> map = new HashMap<>(keyValues.length / 2, 1);
-        for (int i = 0; i < keyValues.length; i = i + 2) {
+        for (int i = 0; i < keyValues.length - 1; i = i + 2) {
             Object key = keyValues[i];
             Object val = keyValues[i + 1];
             if (key instanceof String && val != null) {