In this post I will show you how to achieve drag and drop image file onto Java Swing Component. In short, implment TransferHandler which can transfer image file. Code Here is the code I wrote. I defined common closure interface in order to give implementation flexibility. The exec method of imageAcceptor will be called with Image object when drag & drop is succeeded. package com.dukesoftware.utils.swing.drag; import java.awt.Image; import java.awt.datatransfer.DataFlavor; import java.awt.datatransfer.Transferable; import java.awt.datatransfer.UnsupportedFlavorException; import java.io.File; import java.io.IOException; import java.util.Arrays; import java.util.HashSet; import java.util.List; import java.util.Set; import javax.imageio.ImageIO; import javax.swing.TransferHandler; import com.dukesoftware.utils.common.Closure; public class ImageFileTransferHandler extends TransferHandler { private final static Set<String> SUPPORTED_SUFIXES = new HashSet<>(Arr
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