From 444e7c476bba829ef7b0bd5c423c76e54640f0da Mon Sep 17 00:00:00 2001
From: prakanth <50439067+prakanth97@users.noreply.github.com>
Date: Thu, 2 May 2024 17:38:17 +0530
Subject: [PATCH] Fix bug in open array conversion

---
 .../tests/from_json_with_disable_projection_option.bal     | 7 +++++++
 .../io/ballerina/lib/data/jsondata/json/JsonTraverse.java  | 3 ++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/ballerina/tests/from_json_with_disable_projection_option.bal b/ballerina/tests/from_json_with_disable_projection_option.bal
index 1d2d565..34b89ad 100644
--- a/ballerina/tests/from_json_with_disable_projection_option.bal
+++ b/ballerina/tests/from_json_with_disable_projection_option.bal
@@ -297,3 +297,10 @@ isolated function testDisableDataProjectionInRecordTypeWithParseAsType() {
     test:assertTrue(val4 is error);
     test:assertEquals((<error>val4).message(), "undefined field 'company1'");
 }
+
+@test:Config
+isolated function testDisableProjectionForOpenArray() returns error? {
+    string jsonStr = string `[1, 2, 3, 4]`;
+    int[] val = check parseString(jsonStr, options);
+    test:assertEquals(val, [1, 2, 3, 4]);
+}
diff --git a/native/src/main/java/io/ballerina/lib/data/jsondata/json/JsonTraverse.java b/native/src/main/java/io/ballerina/lib/data/jsondata/json/JsonTraverse.java
index 58bd9ba..90d74f4 100644
--- a/native/src/main/java/io/ballerina/lib/data/jsondata/json/JsonTraverse.java
+++ b/native/src/main/java/io/ballerina/lib/data/jsondata/json/JsonTraverse.java
@@ -229,7 +229,8 @@ private Object traverseArrayValue(BArray array, Object currentJsonNode) {
                     ArrayType arrayType = (ArrayType) rootArray;
                     int expectedArraySize = arrayType.getSize();
                     long sourceArraySize = array.getLength();
-                    if (!allowDataProjection && expectedArraySize < sourceArraySize) {
+                    if (!allowDataProjection && arrayType.getState() == ArrayType.ArrayState.CLOSED
+                            && expectedArraySize < sourceArraySize) {
                         throw DiagnosticLog.error(DiagnosticErrorCode.ARRAY_SIZE_MISMATCH);
                     }