Releasing/Deallocating pointers

[skiwi2]

In your examples I often see things like:

Tesseract.TessBaseAPIInit2(handle,
    Pointer.pointerToCString("E:\\Masterarbeit\\Ressourcen\\tessdata"),
    Pointer.pointerToCString("deu-frak"), OCREngineMode.DEFAULT);

I am currently investigating a memory leak in my application, and therefore I am wondering, should we not clean up those Pointer<Byte> that the Pointer.pointerToCString() makes, via Pointer#release?

[skiwi2]

After more investigating figured out that usage of the following is necessary for it to not leak memory:

• TessChoiceIteratorDelete(choiceIterator);
• //TessPageIteratorDelete(pageIterator); //TODO get this working, may still have a memory leak here
• TessResultIteratorDelete(resultIterator);
• TessBaseAPIDelete(api);

Unfortunately TessPageIteratorDelete(pageIterator) seems to crash the JVM, could you try to confirm and possibly fix the issue?

[pvorb]

Yes it does. And I have no idea how to deal with it. :(

We probably should check if it fails in a C/C++ program too.