javafx-embed-swing/src/javafx/embed/swing/SwingDnD.java

*** 164,174 ****
                      // prevent dragExit(), dragOver() and drop() from being called
                      return;
                  }
                  
                  try {
!                     dropTarget.handleDragLeave();
                  } finally {
                      endDnD();
                  }
              }
  
--- 164,174 ----
                      // prevent dragExit(), dragOver() and drop() from being called
                      return;
                  }
                  
                  try {
!                     getDropTarget().handleDragLeave();
                  } finally {
                      endDnD();
                  }
              }