From 15d72e466380ac1b938bea2212aecf118c026a0d Mon Sep 17 00:00:00 2001
From: Martin Cousido <martin.cousido@mulesoft.com>
Date: Thu, 20 Oct 2022 14:32:38 -0300
Subject: [PATCH] Using listable typeloader for all createTypeLoader methods

---
 api-changes.json                                     | 12 ++++++++++++
 .../metadata/ExpressionLanguageMetadataService.java  |  4 ++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/api-changes.json b/api-changes.json
index 670585d81..11292e603 100644
--- a/api-changes.json
+++ b/api-changes.json
@@ -141,6 +141,18 @@
           "methodName": "addType",
           "elementKind": "method",
           "justification": "Support resolving types coming from mule in DW transformations"
+        },
+        {
+          "code": "java.method.returnTypeChangedCovariantly",
+          "old": "method org.mule.metadata.api.TypeLoader org.mule.runtime.api.metadata.ExpressionLanguageMetadataService::createTypeLoader(java.lang.String, org.mule.metadata.api.model.MetadataFormat)",
+          "new": "method org.mule.metadata.api.ListableTypeLoader org.mule.runtime.api.metadata.ExpressionLanguageMetadataService::createTypeLoader(java.lang.String, org.mule.metadata.api.model.MetadataFormat)",
+          "oldType": "org.mule.metadata.api.TypeLoader",
+          "newType": "org.mule.metadata.api.ListableTypeLoader",
+          "package": "org.mule.runtime.api.metadata",
+          "classSimpleName": "ExpressionLanguageMetadataService",
+          "methodName": "createTypeLoader",
+          "elementKind": "method",
+          "justification": "Now DataWeave type loader can list all the types available on the script"
         }
       ]
     }
diff --git a/src/main/java/org/mule/runtime/api/metadata/ExpressionLanguageMetadataService.java b/src/main/java/org/mule/runtime/api/metadata/ExpressionLanguageMetadataService.java
index c1f3f37e4..5336cb46f 100644
--- a/src/main/java/org/mule/runtime/api/metadata/ExpressionLanguageMetadataService.java
+++ b/src/main/java/org/mule/runtime/api/metadata/ExpressionLanguageMetadataService.java
@@ -130,9 +130,9 @@ public interface ExpressionLanguageMetadataService extends Service {
    *
    * @param content        The script
    * @param metadataFormat The format that will be used for the loaded types
-   * @return The type loader
+   * @return The listable type loader
    */
-  TypeLoader createTypeLoader(String content, MetadataFormat metadataFormat);
+  ListableTypeLoader createTypeLoader(String content, MetadataFormat metadataFormat);
 
 
   /**