Unable to get List of test cases from test plan when Platform is added

[Piyu-sh-arma]

Steps:

1. Add Platform to Test Plan
2. Add tests to Test Plan
3. Now try to fetch tests for a Test Plan

Getting this error "class java.util.HashMap$Node cannot be cast to class java.util.Map"

[kinow]

Hey @Piyu-sh-arma , I don't have a test environment right now (not using TL at $work). But could you share the version of the API and of TestLink, please? That'd be helpful when I or somebody else starts working on this. Thanks