if (!isIncremental){
            outputProvider.deleteAll()
        }

if (!isIncremental) {
                    //scan jar file to find classes
                    if (ScanUtil.shouldProcessPreDexJar(src.absolutePath)) {
                        ScanUtil.scanJar(src, dest)
                    }
                    FileUtils.copyFile(src, dest)
                } else {
                 switch (jarInput.getStatus()) {
                        case Status.CHANGED:
                        case Status.ADDED:
                            if (ScanUtil.shouldProcessPreDexJar(src.absolutePath)) {
                                ScanUtil.scanJar(src, dest)
                            }
                            FileUtils.copyFile(src, dest, false)
                            break
                        case Status.REMOVED:
                            if (dest.exists()) {
                                dest.delete()
                            }
                            break
                        case Status.NOTCHANGED:
                            FileUtils.copyFile(src, dest, false)
                            break
                    }
                    }
                }