String parameters enclosed in quotes in activity functions

We are experiencing the issue described in azure-functions-durable-extension/issues/2674 in Java activity functions.

Our existing durable function orchestration started failing out of the blue. No changes were made to the code base or dependencies of our service using durable Java functions. The service works (for now) on a linux app service plan in Azure but fails on Windows with the latest Core Tools. String parameters are enclosed in quotes in any activity functions. Using the example capitalize cities workflow from the official docs demonstrates the issue. Output below:

{
    "name": "Cities",
    "instanceId": "47f91af6-e5f0-4ea1-a363-f6d00ca812c2",
    "runtimeStatus": "Completed",
    "input": null,
    "customStatus": "",
    "output": "\"TOKYO\", \"LONDON\", \"SEATTLE\", \"AUSTIN\"",
    "createdTime": "2024-03-07T17:16:49Z",
    "lastUpdatedTime": "2024-03-07T17:16:51Z"
}

endtoendtests/src/main/java/com/functions/AzureFunctions.java から始め、最新の Core Tools を使って Windows 上で「capitalize cities」ワークフローを再現します。アクティビティの出力を、リンクされている azure-functions-durable-extension の issue と比較します。文字列パラメーターが囲みの引用符付きで返されなくなれば完了です。