Many memory leaks not in my code
That is what they all say
Usually that means you've done something that is buried away and heaptrace was not able to directly trace it back to your code.
The trace as shown does not indicate with certainty that it is not directly related to your code. Of course the opposite is also true in that it might be a 3th party class/component that is causing the trace or perhaps you stumbled upon a bug that is present inside rtl.
Compile your rtl with debug and gl turned on and you should be able to get a better trace. See also
this thread$BAADF00DBAADF00D
That isn't something pretty, rather an indication something went seriously wrong as it is a special marker reading "Bad Food"
PS: in case the number of unfreed memory blocks goes higher the longer you run your program then think about where in your code you add something to f.i. a (object)list, treelist or similar and you forgot to free the items that you added over time.