From a2660a9166b745107913f9ecdb3765a1de886697 Mon Sep 17 00:00:00 2001
From: Naveed Khan <dxbnaveed.k@gmail.com>
Date: Fri, 24 Jul 2026 14:43:58 +0530
Subject: [PATCH] resolve column name in ResultSetIterator.set (1.X)

port of #426. the read path resolves the dyna-property name to the real column name via getColumnName, but set passed the raw name to updateObject, so with the default lowerCase a mixed-case column update targeted the wrong column. Same fix and regression test as master, adapted to the JUnit 3 style on this branch.
---
 .../commons/beanutils/ResultSetIterator.java  |  2 +-
 .../commons/beanutils/DynaResultSetTest.java  | 25 +++++++++++++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/apache/commons/beanutils/ResultSetIterator.java b/src/main/java/org/apache/commons/beanutils/ResultSetIterator.java
index 0ed83bca2..82288d0f6 100644
--- a/src/main/java/org/apache/commons/beanutils/ResultSetIterator.java
+++ b/src/main/java/org/apache/commons/beanutils/ResultSetIterator.java
@@ -264,7 +264,7 @@ public void set(final String name, final Object value) {
             throw new IllegalArgumentException(name);
         }
         try {
-            dynaClass.getResultSet().updateObject(name, value);
+            dynaClass.getResultSet().updateObject(dynaClass.getColumnName(name), value);
         } catch (final SQLException e) {
             throw new IllegalArgumentException("set(" + name + "): SQLException: " + e, e);
         }
diff --git a/src/test/java/org/apache/commons/beanutils/DynaResultSetTest.java b/src/test/java/org/apache/commons/beanutils/DynaResultSetTest.java
index 0fb49eeb8..f43ff2e72 100644
--- a/src/test/java/org/apache/commons/beanutils/DynaResultSetTest.java
+++ b/src/test/java/org/apache/commons/beanutils/DynaResultSetTest.java
@@ -18,7 +18,10 @@
 package org.apache.commons.beanutils;
 
 import java.math.BigDecimal;
+import java.sql.ResultSet;
+import java.sql.SQLException;
 import java.util.Iterator;
+import java.util.concurrent.atomic.AtomicReference;
 
 import junit.framework.TestCase;
 
@@ -123,6 +126,28 @@ public void testGetName() {
 
     }
 
+    /**
+     * With the default {@code lowerCase} option the property name differs from the real column name, and the read path resolves it through
+     * {@code getColumnName}. Verify that {@code set} resolves it the same way, so the update targets the real column name and not the lower-cased property
+     * name.
+     */
+    public void testSetUsesColumnName() throws Exception {
+
+        final AtomicReference<String> updatedColumn = new AtomicReference<String>();
+        final ResultSet resultSet = TestResultSet.createProxy(new TestResultSet() {
+            @Override
+            public void updateObject(final String columnName, final Object value) throws SQLException {
+                updatedColumn.set(columnName);
+            }
+        });
+        final ResultSetDynaClass rsdc = new ResultSetDynaClass(resultSet);
+        final DynaBean row = rsdc.iterator().next();
+        row.set("stringproperty", "new value");
+        assertEquals("update targets the real column name",
+                     "stringProperty", updatedColumn.get());
+
+    }
+
     public void testIteratorCount() {
 
         final Iterator<?> rows = dynaClass.iterator();