Add method to KiwiJdbc to get trimmed string values or null when blank

src/main/java/org/kiwiproject/jdbc/KiwiJdbc.java

@@ -378,6 +378,21 @@ public static String stringOrNullIfBlank(ResultSet rs, String columnName) throws
         return stringOrNullIfBlank(rs, columnName, StringTrimOption.PRESERVE);
     }
 
+    /**
+     * Returns a String from the specified column in the {@link ResultSet}, trimming leading and trailing
+     * whitespace. When the database value is {@code NULL} or contains only whitespace, returns {@code null}.
+     *
+     * @param rs         the ResultSet
+     * @param columnName the date column name
+     * @return the String with leading and trailing whitespace removed, or {@code null} if the
+     * column was blank or {@code NULL}
+     * @throws SQLException if there is any error getting the value from the database
+     */
+    @Nullable
+    public static String trimmedStringOrNullIfBlank(ResultSet rs, String columnName) throws SQLException {
+        return stringOrNullIfBlank(rs, columnName, StringTrimOption.REMOVE);
+    }
+
     /**
      * Enum representing options for trimming strings.
      */

src/test/java/org/kiwiproject/jdbc/KiwiJdbcTest.java

@@ -686,6 +686,43 @@ void shouldReturn_ExactStringValue_FromResultSet(String phrase) throws SQLExcept
         }
     }
 
+    @Nested
+    class TrimmedStringOrNullIfBlank {
+
+        @ParameterizedTest
+        @BlankStringSource
+        void shouldReturnNull_WhenValue_IsBlank(String value) throws SQLException {
+            var resultSet = newMockResultSet();
+            when(resultSet.getString(anyString())).thenReturn(value);
+
+            assertThat(KiwiJdbc.trimmedStringOrNullIfBlank(resultSet, "comment")).isNull();
+
+            verify(resultSet).getString("comment");
+            verifyNoMoreInteractions(resultSet);
+        }
+
+        @ParameterizedTest
+        @ValueSource(strings = {
+                "alice",
+                "Sphinx of black quartz, judge my vow",
+                "  that was a pangram",
+                "and so is this...   ",
+                "  The five boxing\r\nwizards jump quickly  ",
+                "  and also this one \r\n ",
+                "Pack my box\r\nwith five dozen\r\nliquor jugs"
+        })
+        void shouldReturn_TrimmedStringValue_FromResultSet(String phrase) throws SQLException {
+            var resultSet = newMockResultSet();
+            when(resultSet.getString(anyString())).thenReturn(phrase);
+
+            var trimmed = phrase.strip();
+            assertThat(KiwiJdbc.trimmedStringOrNullIfBlank(resultSet, "phrase")).isEqualTo(trimmed);
+
+            verify(resultSet).getString("phrase");
+            verifyNoMoreInteractions(resultSet);
+        }
+    }
+
     @Nested
     class StringOrNullIfBlankWithTrimOption {