if ( !isFile(filenameOrURI) ) return null ;
if ( !isFile(filenameOrURI) ) return null ;
void isFilename(String fn) { assertTrue("Should be a file name : " + fn, FileUtils.isFile(fn)); }
void isNotFilename(String fn) { assertFalse("Shouldn't be a file name: " + fn, FileUtils.isFile(fn)); }
void isFilename(String fn) { assertTrue("Should be a file name : " + fn, FileUtils.isFile(fn)); }
void isNotFilename(String fn) { assertFalse("Shouldn't be a file name: " + fn, FileUtils.isFile(fn)); }