Memory leak OOM Webview + Openlayers

I am adding Openlayers map to WebView added to a swing panel.
Heap memory usage increases steeply while zooming/adding layer/replacing layer.
java.lang.OutOfMemoryError: Java heap space
I think Images are not getting garbage collected properly.

Heapdatabuffer retains instances of ImageFrame

eg:
- value: com.sun.javafx.iio.ImageFrame[] #3 (1 items)
 -> [0] - class: com.sun.javafx.iio.ImageFrame[], value: com.sun.javafx.iio.ImageFrame #3