Thumbnails4j (I am a maintainer, nonetheless it's owned by Elastic) is a java library which can be made use of to produce thumbnails from picture documents, along with from other file kinds. You are mixing const and var, which can appear to be Odd fome a number of people, together https://javaburncoffeereviews78899.blog5star.com/28363308/java-burn-order-can-be-fun-for-anyone