Second invocation of specific OQL query doesn't show anything.

[homes410]

Describe the bug
Following oql query don't show anything.
select map(heap.classes(), 'toArray(it.fields)')

visualvm/visualvm/libs.profiler/profiler.oql/src/org/graalvm/visualvm/lib/profiler/oql/engine/api/impl/hat.js

Line 461 in f7e6b4a

this.fields = wrapIterator(jclass.fields.iterator(), true);

you need to implement it as accessor function or just replace the above line to below.

this.fields = function(){return wrapIterator(jclass.fields.iterator(), true);}

Thank you.

[thurka]

FYI: First invocation of above query works fine.

[homes410]

Object.defineProperty(this,'fields',{get: function(){
return wrapIterator(jclass.fields.iterator(), true);
}});
Please apply above code snippet to a source code.
Thank you.

[thurka]

Fixed in master.