Bugfix for handling '+' character in attribute names (#3063)

Author: debora-ito

.changes/next-release/bugfix-AmazonDynamoDBEnhancedClient-7c4d1bf.json

@@ -0,0 +1,6 @@
+{
+    "category": "Amazon DynamoDB Enhanced Client", 
+    "contributor": "", 
+    "type": "bugfix", 
+    "description": "Bugfix for handling attribute names with `+` character"
+}

services-custom/dynamodb-enhanced/src/main/java/software/amazon/awssdk/enhanced/dynamodb/internal/EnhancedClientUtils.java

@@ -54,6 +54,7 @@ public static String cleanAttributeName(String key) {
                 || chars[i] == '.'
                 || chars[i] == '-'
                 || chars[i] == '#'
+                || chars[i] == '+'
                 || chars[i] == ':') {
                 chars[i] = '_';
                 somethingChanged = true;

services-custom/dynamodb-enhanced/src/test/java/software/amazon/awssdk/enhanced/dynamodb/functionaltests/BasicCrudTest.java

@@ -45,7 +45,7 @@
 import software.amazon.awssdk.services.dynamodb.model.ProjectionType;
 
 public class BasicCrudTest extends LocalDynamoDbSyncTestBase {
-    private static final String ATTRIBUTE_NAME_WITH_SPECIAL_CHARACTERS = "a*t:t.r-i#bute3";
+    private static final String ATTRIBUTE_NAME_WITH_SPECIAL_CHARACTERS = "a*t:t.r-i#bute+3";
 
     private static class Record {
         private String id;

services-custom/dynamodb-enhanced/src/test/java/software/amazon/awssdk/enhanced/dynamodb/internal/EnhancedClientUtilsTest.java

@@ -60,8 +60,8 @@ public void createKeyFromMap_partitionAndSort() {
 
     @Test
     public void cleanAttributeName_cleansSpecialCharacters() {
-        String result = EnhancedClientUtils.cleanAttributeName("a*b.c-d:e#f");
+        String result = EnhancedClientUtils.cleanAttributeName("a*b.c-d:e#f+g");
 
-        assertThat(result).isEqualTo("a_b_c_d_e_f");
+        assertThat(result).isEqualTo("a_b_c_d_e_f_g");
     }
 }